Revert of [profiler] Implement POC Sampling Heap Profiler

Revert of [profiler] Implement POC Sampling Heap Profiler (patchset #12 id:220001 of https://codereview.chromium.org/1555553002/ )

Reason for revert:
The random nature of the tests caused the following buildbot to fail: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20gcc%204.8/builds/4724/steps/Check/logs/stdio

Original issue's description:
> [profiler] Implement POC Sampling Heap Profiler
>
> This implements a proof-of-concept sampling based heap profiler inspired by
> tcmalloc's heap profiler [1] and Go's mprof/memprofile [2].
>
> The basic idea is the sample allocations using a randomized Poisson process. At
> any point in time we can cheaply request the set of live sample objects that
> should be a representative sample of heap. Samples include stack-traces from the
> allocation sites, making this an effective tool for memory leak debugging.
>
> Unlike AllocationTracking, this is intended to be cheap and usable online in
> production.
>
> The proof-of-concept is only sampling new-space allocations at this point.
> Support for sampling paged space and native allocations is anticipated in the
> future.
>
> [1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html
> [2] http://blog.golang.org/profiling-go-programs
>
> Committed: https://crrev.com/e5a9947811db9c9e23557dbad27f8b8a349b3262
> Cr-Commit-Position: refs/heads/master@{#33448}

TBR=jochen@chromium.org,alph@chromium.org,hpayer@chromium.org,yangguo@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/77df8659c2c114a59450dc201881f91412f200f3
Cr-Commit-Position: refs/heads/master@{#33449}

[ofrobots, 2016-01-21 21:53:15]

Created Revert of [profiler] Implement POC Sampling Heap Profiler

[commit-bot: I haz the power, 2016-01-21 21:53:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1615173002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1615173002/1

[commit-bot: I haz the power, 2016-01-21 21:53:19]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-01-21 21:53:19]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[adamk, 2016-01-21 22:08:03]

The CQ bit was checked by adamk@chromium.org

[commit-bot: I haz the power, 2016-01-21 22:08:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1615173002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1615173002/1

[commit-bot: I haz the power, 2016-01-21 22:08:12]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-01-21 22:08:13]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[adamk, 2016-01-21 22:08:23]

The CQ bit was checked by adamk@chromium.org

[adamk, 2016-01-21 22:08:24]

lgtm

[commit-bot: I haz the power, 2016-01-21 22:08:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1615173002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1615173002/1

[commit-bot: I haz the power, 2016-01-21 22:08:50]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-21 22:09:00]

Description was changed from

==========
Revert of [profiler] Implement POC Sampling Heap Profiler (patchset #12
id:220001 of https://codereview.chromium.org/1555553002/ )

Reason for revert:
The random nature of the tests caused the following buildbot to fail:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20gcc%204.8/builds...

Original issue's description:
> [profiler] Implement POC Sampling Heap Profiler
> 
> This implements a proof-of-concept sampling based heap profiler inspired by
> tcmalloc's heap profiler [1] and Go's mprof/memprofile [2].
> 
> The basic idea is the sample allocations using a randomized Poisson process.
At
> any point in time we can cheaply request the set of live sample objects that
> should be a representative sample of heap. Samples include stack-traces from
the
> allocation sites, making this an effective tool for memory leak debugging.
> 
> Unlike AllocationTracking, this is intended to be cheap and usable online in
> production.
> 
> The proof-of-concept is only sampling new-space allocations at this point.
> Support for sampling paged space and native allocations is anticipated in the
> future.
> 
> [1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html
> [2] http://blog.golang.org/profiling-go-programs
> 
> Committed: https://crrev.com/e5a9947811db9c9e23557dbad27f8b8a349b3262
> Cr-Commit-Position: refs/heads/master@{#33448}

TBR=jochen@chromium.org,alph@chromium.org,hpayer@chromium.org,yangguo@chromiu...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of [profiler] Implement POC Sampling Heap Profiler (patchset #12
id:220001 of https://codereview.chromium.org/1555553002/ )

Reason for revert:
The random nature of the tests caused the following buildbot to fail:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20gcc%204.8/builds...

Original issue's description:
> [profiler] Implement POC Sampling Heap Profiler
>
> This implements a proof-of-concept sampling based heap profiler inspired by
> tcmalloc's heap profiler [1] and Go's mprof/memprofile [2].
>
> The basic idea is the sample allocations using a randomized Poisson process.
At
> any point in time we can cheaply request the set of live sample objects that
> should be a representative sample of heap. Samples include stack-traces from
the
> allocation sites, making this an effective tool for memory leak debugging.
>
> Unlike AllocationTracking, this is intended to be cheap and usable online in
> production.
>
> The proof-of-concept is only sampling new-space allocations at this point.
> Support for sampling paged space and native allocations is anticipated in the
> future.
>
> [1] http://goog-perftools.sourceforge.net/doc/heap_profiler.html
> [2] http://blog.golang.org/profiling-go-programs
>
> Committed: https://crrev.com/e5a9947811db9c9e23557dbad27f8b8a349b3262
> Cr-Commit-Position: refs/heads/master@{#33448}

TBR=jochen@chromium.org,alph@chromium.org,hpayer@chromium.org,yangguo@chromiu...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/77df8659c2c114a59450dc201881f91412f200f3
Cr-Commit-Position: refs/heads/master@{#33449}
==========

[commit-bot: I haz the power, 2016-01-21 22:09:01]

Patchset 1 (id:??) landed as
https://crrev.com/77df8659c2c114a59450dc201881f91412f200f3
Cr-Commit-Position: refs/heads/master@{#33449}