tools/metrics/histograms/histograms.xml - Issue 515953003: Add owner to DNS histograms

Unified Diff: tools/metrics/histograms/histograms.xml

Issue 515953003: Add owner to DNS histograms (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 6 years, 4 months ago

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Index: tools/metrics/histograms/histograms.xml

diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml

index 4a5c9eb7cee894bfa3697c236d4ee9efd62057ad..dc95fecd0d160bceaf393457dac645cec3cd863d 100644

--- a/tools/metrics/histograms/histograms.xml

+++ b/tools/metrics/histograms/histograms.xml

@@ -877,21 +877,21 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of DnsAttempts before DnsTransaction completes with failure.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of DnsAttempts before DnsTransaction completes successfully.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Whether DnsConfigService::OnConfigChange actually corresponded to a change

in DnsConfig.

@@ -899,45 +899,45 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time between calls to DnsConfigService::InvalidateConfig.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Duration of time spent parsing DnsConfig.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of results of parsing DnsConfig in DnsConfigServicePosix.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Whether DnsConfig was parsed successfully.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of results of parsing DnsConfig in DnsConfigServiceWin.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Whether the first valid DnsConfig included a rogue nameserver.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of specific error codes returned by DnsTask if a subsequent ProcTask

succeeded, at the end of a streak of failures after which the DnsClient was

@@ -946,7 +946,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

TRUE counts the events when a valid DnsConfig is received and used to enable

DnsClient, while FALSE counts the events when DnsClient is disabled after a

@@ -955,21 +955,21 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time spent by ProcTask in failing fallback resolutions.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time spent by ProcTask in successful fallback resolutions.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Whether there was a valid DNS configuration at the start of a job which

eventually completed successfully.

@@ -977,12 +977,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Whether DnsHosts were parsed successfully.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Whether DnsConfigService::OnHostsChange actually corresponded to a change in

DnsHosts.

@@ -990,33 +990,33 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time between calls to DnsConfigService::InvalidateHosts.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Duration of time spent parsing DnsHosts.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of results of parsing DnsHosts in DnsConfigServiceWin.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The size of the HOSTS file observed before each attempt to parse it.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (using DnsClient).

@@ -1024,7 +1024,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (using DnsClient). Includes only Jobs which had

@@ -1033,7 +1033,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (using DnsClient). Includes only Jobs which had

@@ -1042,7 +1042,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (using DnsClient). Includes only Jobs which had

@@ -1051,7 +1051,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (using DnsClient). Includes only Jobs which had

@@ -1060,7 +1060,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (using DnsClient). Includes only Jobs which had

@@ -1069,7 +1069,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -1078,7 +1078,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -1088,7 +1088,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -1098,7 +1098,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -1108,7 +1108,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -1118,7 +1118,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -1128,7 +1128,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Type of nameservers in the DNS config, recorded each time the config is read

by the DNSConfigService.

@@ -1136,7 +1136,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of results of parsing addresses out of DNS responses in successful

DnsTransactions.

@@ -1144,7 +1144,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of specific error codes returned by DnsTask if a subsequent ProcTask

succeeded.

@@ -1152,7 +1152,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken by DnsTask in resolutions that failed. Excludes time

spent in the subsequent fallback.

@@ -1160,7 +1160,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of the overall results of using asynchronous DNS in HostResolverImpl.

This only includes jobs started with valid DNS configuration and excludes

@@ -1169,35 +1169,35 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken by DnsTask in resolutions that succeeded.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as AsyncDNS.ResolveSuccess, but limited to pure IPv4 lookups.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as AsyncDNS.ResolveSuccess, but limited to pure IPv6 lookups.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as AsyncDNS.ResolveSuccess, but limited to IPv4/IPv6 lookups.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of servers in DnsConfig. Recorded on every new DnsSession, which is

created on DNS change.

@@ -1205,14 +1205,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Index in DnsConfig of the failing server, recorded at the time of failure.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of server failures after network change before first success in the

DnsSession. Recorded at the time of first success.

@@ -1220,7 +1220,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of server failures after success until the end of the session. Server

has reported success at some point during the session. Recorded at the end

@@ -1229,7 +1229,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of server failures before success. This is NOT the first success in

the DnsSession. Recorded at the time of success.

@@ -1237,7 +1237,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Count of server failures without success until the end of the session.

Server has never reported success during the DnsSession. Recorded at the end

@@ -1246,14 +1246,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The current server is "good" and does not have to be skipped.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in failing calls to AddressSorter in dual-stack

resolutions using DnsTask.

@@ -1261,7 +1261,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in successful calls to AddressSorter in dual-stack

resolutions using DnsTask.

@@ -1269,7 +1269,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The number of names from the search name list consumed during a successful

transaction (QTYPE A only).

@@ -1277,7 +1277,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The number of names left on the search name list at the end of a successful

transaction (QTYPE A only).

@@ -1285,7 +1285,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The number of names on the search name list at the start of a transaction

(QTYPE A only).

@@ -1293,7 +1293,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken by DnsTCPAttempt in failed attempts. Excludes

timeouts.

@@ -1301,42 +1301,42 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken by DnsTCPAttempt in successful attempts.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Difference between RTT and timeout calculated using Histogram algorithm.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Difference between timeout calculated using Histogram algorithm and RTT.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Difference between RTT and timeout calculated using Jacobson algorithm.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Difference between timeout calculated using Jacobson algorithm and RTT.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time that would be spent waiting for lost request using

Histogram algorithm.

@@ -1344,7 +1344,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time that would be spent waiting for lost request using Jacobson

algorithm.

@@ -1352,7 +1352,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time since a HostResolverImpl::Resolve request to the time a

result is posted. Excludes canceled, evicted, and aborted requests. Includes

@@ -1361,7 +1361,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time since a HostResolverImpl::Resolve request to the time a

result is posted. Excludes canceled, evicted, and aborted requests. Includes

@@ -1370,7 +1370,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in failing DnsTransactions. This includes server

failures, timeouts and NXDOMAIN results.

@@ -1378,7 +1378,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in successful DnsTransactions. This includes all

NOERROR answers, even if they indicate the name has no addresses or they

@@ -1387,21 +1387,21 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as AsyncDNS.TransactionSuccess but limited to A query type.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as AsyncDNS.TransactionSuccess but limited to AAAA query type.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

TTL of the resolved addresses, as in the response received from the server.

For results served from local cache, the TTL is from the original response.

@@ -1409,7 +1409,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken by DnsUDPAttempt in failed attempts. Excludes

timeouts.

@@ -1417,7 +1417,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken by DnsUDPAttempt in successful attempts. Includes

responses arriving after timeout, if multiple attempts are allowed.

@@ -1425,7 +1425,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time since the last empty config result to the time a non-change

OnConfigChange is received.

@@ -1433,7 +1433,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time since the last empty config result to the time a non-change

OnHostsChange is received.

@@ -1441,7 +1441,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The result of DnsConfigService watch. Counts STARTED on every initialization

and FAILED_* on any failure.

@@ -4186,14 +4186,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The attempt which completed after the job was already cancelled.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The attempt which completed after the job was already cancelled OR the

attempt that has finished after host resolution was already completed by an

@@ -4202,7 +4202,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in OS resolutions for actual navigations. These

attempts which completed after the job was already canceled OR after the job

@@ -4212,12 +4212,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>The attempt that has not resolved the host successfully.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The attempt that resolved the host first and the resolution was not

successful.

@@ -4225,19 +4225,19 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The attempt that resolved the host first and the resolution was successful.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>The attempt that has resolved the host successfully.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in OS resolutions that succeeded and were requested

for actual navigations. These attempts which completed after the job was

@@ -4248,7 +4248,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

This histogram shows the time saved by having spawned an extra attempt, when

the first attempt didn't finish before retry attempt.

@@ -4256,7 +4256,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The time left to expiration of an entry when it is removed while compacting

the HostCache.

@@ -4264,7 +4264,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The time since expiration of an entry when it is removed while compacting

the HostCache.

@@ -4272,7 +4272,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The time since expiration of an entry when it is removed on lookup.

</summary>

@@ -4280,14 +4280,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.

<histogram name="DNS.EmptyAddressListAndNoError"

enum="DNSEmptyAddressListAndNoError">

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Error status when an empty address list was found in OnLookupComplete().

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

When either a pre-resolution was not done recently enough to provide

benefit, or the corresponding pre-resolution is still pending, this

@@ -4300,7 +4300,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

When either a pre-resolution was not done recently enough to provide

benefit, or the corresponding pre-resolution is still pending, this

@@ -4313,7 +4313,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (a getaddrinfo call was dispatched to the thread

@@ -4322,7 +4322,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (a getaddrinfo call was dispatched to the thread

@@ -4331,7 +4331,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (a getaddrinfo call was dispatched to the thread

@@ -4340,7 +4340,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (a getaddrinfo call was dispatched to the thread

@@ -4349,7 +4349,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (a getaddrinfo call was dispatched to the thread

@@ -4358,7 +4358,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the time the HostResolverImpl::Job was created and the

time the Job was started (a getaddrinfo call was dispatched to the thread

@@ -4367,7 +4367,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -4376,7 +4376,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -4386,7 +4386,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -4396,7 +4396,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -4406,7 +4406,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -4416,7 +4416,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Time elapsed between the last time the priority of a HostResolverImpl::Job

changed (when a Request was attached or detached) and the time the Job was

@@ -4426,7 +4426,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time used (most recently) to pre-resolve a hostname, when

the prefetched resolution was apparently evicted from the cache. The

@@ -4436,7 +4436,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time used (most recently) to pre-resolve a hostname, when

the prefetched resolution was apparently evicted from the cache. The

@@ -4446,15 +4446,15 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Replaced by DNS.PrefetchFoundNameL.</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Deprecated 2/2010, and replaced by DNS.PrefetchResolution

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

The duration of time used by the DNS pre-resolving threads to resolve a host

name via the network. Any resolutions that are faster than 15ms are

@@ -4468,12 +4468,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Replaced by DNS.PrefetchNegativeHitL.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time saved due to DNS pre-resolving in the "name not

found" case. Time "savings" shown in the histogram are

@@ -4491,12 +4491,12 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Replaced by DNS.PrefetchPositiveHitL.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time saved due to DNS pre-resolving in the "name was

found" case, and induced by either a page scan for a link or an omnibox

@@ -4512,7 +4512,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time spent by a proposed resolution waiting in the queue to

be resolved. This number is in addition to any DNS resolution time that may

@@ -4521,7 +4521,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time saved due to DNS pre-resolving in the "name was

found" case, and induced by predicting (using referrer lists) that a

@@ -4537,7 +4537,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

The duration of time used by the DNS pre-resolving threads to resolve a host

name via the network. Any resolutions that are faster than 15ms are

@@ -4551,7 +4551,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

When, due to congestion avoidance, a queued pre-resolution is abandoned

(recycled) without actually being resolved, this histograms records the age

@@ -4561,7 +4561,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

When, due to congestion avoidance, a queued pre-resolution is abandoned

(recycled) without actually being resolved, this histograms records the age

@@ -4571,14 +4571,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Counts of successes and failures of OS resolutions in various categories.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in OS resolutions for actual navigations. Note that

cached OS resolutions may provide low (0ms?) resolution times.

@@ -4586,22 +4586,22 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Same as DNS.ResolveFail, but limited to pure IPv4 lookups.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Same as DNS.ResolveFail, but limited to pure IPv6 lookups.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Same as DNS.ResolveFail, but limited to IPv4/IPv6 lookups.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in speculative OS resolutions. Note that cached OS

resolutions may provide low (0ms?) resolution times.

@@ -4609,7 +4609,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in speculative OS resolution that succeeded. Note

that cached resolutions may provide low (0ms?) resolution times.

@@ -4617,7 +4617,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time taken in OS resolutions that succeeded and were requested

for actual navigations. Note that cached resolutions may provide low (0ms?)

@@ -4626,31 +4626,31 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as DNS.ResolveSuccess, but limited to pure IPv4 lookups.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as DNS.ResolveSuccess, but limited to pure IPv6 lookups.

</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Same as DNS.ResolveSuccess, but limited to IPv4/IPv6 lookups.

</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Deprecated as of 5/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

Counts of hits and misses in the DNS cache and DNS jobs pool of wasted

HostResolverImpl::Jobs that could be avoided by always resolving using

@@ -4659,7 +4659,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time since a HostResolverImpl::Resolve request to the time a

result is posted. Excludes canceled, evicted, and aborted requests. Includes

@@ -4668,7 +4668,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

Duration of time since a HostResolverImpl::Resolve request to the time a

result is posted. Excludes canceled, evicted, and aborted requests. Includes

@@ -4677,7 +4677,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

In some cases, such as when content arrives with embedded references to

other servers, the prefetch system can't (or doesn't) attempt to pre-resolve

@@ -4695,7 +4695,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

In some cases, such as when content arrives with embedded references to

other servers, or when a page (such as one in SSL) preclude scanning and

@@ -4714,23 +4714,23 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Status of DNS probe updates sent to a DNS error page.</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Renamed 7/2013 to DnsProbe.ProbeDuration.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

<summary>Time between starting and finishing DNS probe.</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

Time between starting and finishing DNS probe when NCN says we're offline.

</summary>

@@ -4738,20 +4738,20 @@ Therefore, the affected-histogram name has to have at least one dot in it.

<histogram name="DnsProbe.Probe.NcnOffline.Result"

enum="DnsProbe.ObsoleteProbeResult">

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

Result of DNS probes sent by the probe service when NCN says we're offline.

</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

Time between starting and finishing DNS probe when NCN says we're online.

</summary>

@@ -4759,38 +4759,38 @@ Therefore, the affected-histogram name has to have at least one dot in it.

<histogram name="DnsProbe.Probe.NcnOnline.Result"

enum="DnsProbe.ObsoleteProbeResult">

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

Result of DNS probes sent by the probe service when NCN says we're online.

</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Renamed 7/2013 to DnsProbe.ProbeResult. (Also switched to the full

DnsProbe.ProbeStatus enum.)

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

<summary>Result of DNS probes sent by the probe service.</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

<summary>Elapsed time of DNS probes that return PROBE_BAD_CONFIG.</summary>

</histogram>

<histogram name="DnsProbe.Probe.ResultBadConfig.SystemIsLocalhost"

enum="DnsProbe.SystemIsLocalhost">

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

Whether the only nameserver in the system DNS config was 127.0.0.1 when the

probe result was BAD_CONFIG.

@@ -4799,10 +4799,10 @@ Therefore, the affected-histogram name has to have at least one dot in it.

<histogram name="DnsProbe.Probe.ResultBadConfig.SystemJobResult"

enum="DnsProbe.JobResult">

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

The result of the system probe job when the overall probe result was

BAD_CONFIG.

@@ -4810,10 +4810,10 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

The number of nameservers in the system DNS config when the probe result was

BAD_CONFIG.

@@ -4821,36 +4821,36 @@ Therefore, the affected-histogram name has to have at least one dot in it.

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

<summary>Elapsed time of DNS probes that return PROBE_NO_INTERNET.</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

<summary>Elapsed time of DNS probes that return PROBE_NXDOMAIN.</summary>

</histogram>

+ <owner>ttuttle@chromium.org</owner>

Removed 7/2013.

</obsolete>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

<summary>Elapsed time of DNS probes that return PROBE_UNKNOWN.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Time between starting and finishing DNS probe.</summary>

</histogram>

- <owner>Please list the metric's owners. Add more owner tags as needed.</owner>

+ <owner>ttuttle@chromium.org</owner>

<summary>Result of DNS probes sent by the probe service.</summary>

</histogram>

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