PPC/AIX: [heap] Uncommit unused large object page memory.

PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=jochen@chromium.org, hpayer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Committed: https://crrev.com/04b655c6e94b65046d6f2b5a7fb1482736a15c1f
Cr-Commit-Position: refs/heads/master@{#37332}

[JaideepBajwa, 2016-06-07 16:05:34]

PTAL

[john.yan, 2016-06-07 18:22:02]

lgtm

[JaideepBajwa, 2016-06-07 18:22:24]

The CQ bit was checked by bjaideep@ca.ibm.com

[commit-bot: I haz the power, 2016-06-07 18:22:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2041233003/20001

[commit-bot: I haz the power, 2016-06-07 18:26:20]

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

[commit-bot: I haz the power, 2016-06-07 18:26:21]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/16683)

[JaideepBajwa, 2016-06-27 22:06:04]

Description was changed from

==========
PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=hpayer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N
==========

to

==========
PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=jochen@chromium.org, hpayer@chromium.org, joransiu@ca.ibm.com,
jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N
==========

[JaideepBajwa, 2016-06-27 22:06:05]

bjaideep@ca.ibm.com changed reviewers:
+ jochen@chromium.org

[JaideepBajwa, 2016-06-27 22:06:38]

ptal

[jochen (gone - plz use gerrit), 2016-06-28 13:01:51]

lgtm

[JaideepBajwa, 2016-06-28 13:05:42]

The CQ bit was checked by bjaideep@ca.ibm.com

[commit-bot: I haz the power, 2016-06-28 13:05:49]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-06-28 13:28:31]

Description was changed from

==========
PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=jochen@chromium.org, hpayer@chromium.org, joransiu@ca.ibm.com,
jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N
==========

to

==========
PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=jochen@chromium.org, hpayer@chromium.org, joransiu@ca.ibm.com,
jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N
==========

[commit-bot: I haz the power, 2016-06-28 13:28:32]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-28 13:30:36]

Description was changed from

==========
PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=jochen@chromium.org, hpayer@chromium.org, joransiu@ca.ibm.com,
jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N
==========

to

==========
PPC/AIX: [heap] Uncommit unused large object page memory.

Port d61a5c376ba51145dc4684e39d5d3a9ce75bcfa6

Original commit message:

    As a first step I uncommit the memory on the main thread. Also
    to measure impact and stability of that optimization. In a
    follow-up CL, the uncommitting should be moved on the concurrent thread.

R=jochen@chromium.org, hpayer@chromium.org, joransiu@ca.ibm.com,
jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Committed: https://crrev.com/04b655c6e94b65046d6f2b5a7fb1482736a15c1f
Cr-Commit-Position: refs/heads/master@{#37332}
==========

[commit-bot: I haz the power, 2016-06-28 13:30:37]

Patchset 2 (id:??) landed as
https://crrev.com/04b655c6e94b65046d6f2b5a7fb1482736a15c1f
Cr-Commit-Position: refs/heads/master@{#37332}