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Issue 2645293002: Reland of Add assembly for x86 to OpenH264 encoder (Closed)

Created:
3 years, 11 months ago by hta - Chromium
Modified:
3 years, 10 months ago
CC:
chromium-reviews, brian4
Target Ref:
refs/pending/heads/master
Project:
chromium
Visibility:
Public.

Description

Reland of Add assembly for x86 to OpenH264 encoder (patchset #1 id:1 of https://codereview.chromium.org/2651543002/ ) Reason for revert: Reland Original issue's description: > Revert of Add assembly for x86 to OpenH264 encoder (patchset #5 id:80001 of https://codereview.chromium.org/2585733002/ ) > > Reason for revert: > This broke Chrome OS builders: > > https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-chrome-pfq/builds/669/steps/BuildPackages/logs/stdio > > > Original issue's description: > > Add assembly for x86 to OpenH264 encoder > > > > On Linux on a build workstation, these changes seem to give around 2.5x faster encoding (frame encode time in test goes from ~25 to ~9 ms) > > > > We do expect alerts from our performance bots when this lands. > > > > Credit: These build changes were written by brian@highfive.com aka bbaldino@gmail.com. > > > > BUG=600399 > > > > Review-Url: https://codereview.chromium.org/2585733002 > > Cr-Commit-Position: refs/heads/master@{#445033} > > Committed: https://chromium.googlesource.com/chromium/src/+/6d1501f500099ff3e25f92593e9efcb27d352252 > > TBR=kthelgason@chromium.org,ehmaldonado@chromium.org,kthelgason@webrtc.org,hta@chromium.org > # Not skipping CQ checks because original CL landed more than 1 days ago. > BUG=600399 > > Review-Url: https://codereview.chromium.org/2651543002 > Cr-Commit-Position: refs/heads/master@{#445311} > Committed: https://chromium.googlesource.com/chromium/src/+/3f4ee1b009741853987773717ebc2f22c5f0c60b BUG=600399 Review-Url: https://codereview.chromium.org/2645293002 Cr-Commit-Position: refs/heads/master@{#445358} Committed: https://chromium.googlesource.com/chromium/src/+/2c39ea391c4df544e2f6162ae595083ce2d04e99

Patch Set 1 #

Total comments: 1

Patch Set 2 : Moved CPU guard from target to surrounding if #

Unified diffs Side-by-side diffs Delta from patch set Stats (+80 lines, -0 lines) Patch
M third_party/openh264/BUILD.gn View 1 5 chunks +80 lines, -0 lines 0 comments Download

Messages

Total messages: 29 (20 generated)
hta - Chromium
Created Reland of Add assembly for x86 to OpenH264 encoder
3 years, 11 months ago (2017-01-23 08:12:08 UTC) #1
kjellander_chromium
https://codereview.chromium.org/2645293002/diff/1/third_party/openh264/BUILD.gn File third_party/openh264/BUILD.gn (right): https://codereview.chromium.org/2645293002/diff/1/third_party/openh264/BUILD.gn#newcode41 third_party/openh264/BUILD.gn:41: assert(target_cpu == "x86" || target_cpu == "x64", This won't ...
3 years, 11 months ago (2017-01-23 08:17:59 UTC) #2
hta - Chromium
On 2017/01/23 08:17:59, kjellander_chromium wrote: > https://codereview.chromium.org/2645293002/diff/1/third_party/openh264/BUILD.gn > File third_party/openh264/BUILD.gn (right): > > https://codereview.chromium.org/2645293002/diff/1/third_party/openh264/BUILD.gn#newcode41 > ...
3 years, 11 months ago (2017-01-23 08:20:46 UTC) #3
kjellander_chromium
On 2017/01/23 08:20:46, hta - Chromium wrote: > On 2017/01/23 08:17:59, kjellander_chromium wrote: > > ...
3 years, 11 months ago (2017-01-23 08:26:45 UTC) #4
hta - Chromium
I think this is ready for review.
3 years, 11 months ago (2017-01-23 10:32:00 UTC) #18
kjellander_chromium
lgtm
3 years, 11 months ago (2017-01-23 10:47:14 UTC) #19
commit-bot: I haz the power
CQ is trying da patch. Follow status at https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.org/2645293002/40001
3 years, 11 months ago (2017-01-23 11:02:43 UTC) #23
commit-bot: I haz the power
Committed patchset #2 (id:40001) as https://chromium.googlesource.com/chromium/src/+/2c39ea391c4df544e2f6162ae595083ce2d04e99
3 years, 11 months ago (2017-01-23 11:51:18 UTC) #26
hbos_chromium
3 years, 11 months ago (2017-01-24 08:31:04 UTC) #27
Message was sent while issue was closed.
A revert of this CL (patchset #2 id:40001) has been created in
https://codereview.chromium.org/2651643004/ by hbos@chromium.org.

The reason for reverting is: Causes linux_msan to flake about uninitialized
value, this warning needs to be ignored before re-landing. Example:
https://build.chromium.org/p/tryserver.webrtc/builders/linux_msan/builds/16972

The address of the uninitialized value is used when calling a function through a
function pointer. The function writes to this value so it's safe, but linux_msan
doesn't know that..

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