Reland of "🏄 [heap] Add page evacuation mode for new->old"

[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.

Committed: https://crrev.com/2489738d4ad631580fa139b1bcc84f7f612fcbde
Cr-Commit-Position: refs/heads/master@{#35649}

[Michael Lippautz, 2016-04-19 12:57:17]

Description was changed from

==========
Reland of "🏄 [heap] Add page evacuation mode for new->old"

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.

[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
==========

to

==========
Reland of "🏄 [heap] Add page evacuation mode for new->old"

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.

[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org
==========

[Michael Lippautz, 2016-04-19 12:57:25]

mlippautz@chromium.org changed reviewers:
+ hpayer@chromium.org

[Michael Lippautz, 2016-04-19 12:57:36]

The CQ bit was checked by mlippautz@chromium.org

[commit-bot: I haz the power, 2016-04-19 12:57:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1901093002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1901093002/20001

[Michael Lippautz, 2016-04-19 13:38:23]

Description was changed from

==========
Reland of "🏄 [heap] Add page evacuation mode for new->old"

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.

[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org
==========

to

==========
[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.
==========

[Michael Achenbach, 2016-04-19 13:50:30]

The CQ bit was unchecked by machenbach@chromium.org

[Michael Achenbach, 2016-04-19 13:51:22]

machenbach@chromium.org changed reviewers:
+ machenbach@chromium.org

[Michael Achenbach, 2016-04-19 13:51:23]

Stopping this reland. There are also these crashes:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064%20%...

03:39:30.219 28416   #
03:39:30.219 28416   # Fatal error in ../../v8/src/heap/heap.cc, line 1781
03:39:30.219 28416   # Check failed: InFromSpace(*p).
03:39:30.219 28416   #

[Michael Lippautz, 2016-04-19 15:18:15]

On 2016/04/19 13:51:23, Michael Achenbach wrote:
> Stopping this reland. There are also these crashes:
>
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064%20%...
> 
> 03:39:30.219 28416   #
> 03:39:30.219 28416   # Fatal error in ../../v8/src/heap/heap.cc, line 1781
> 03:39:30.219 28416   # Check failed: InFromSpace(*p).
> 03:39:30.219 28416   #

Thanks, that's helpful! Have an idea what's going on.

[Hannes Payer (out of office), 2016-04-20 08:27:19]

lgtm

[Michael Lippautz, 2016-04-20 08:50:04]

On 2016/04/19 13:51:23, Michael Achenbach wrote:
> Stopping this reland. There are also these crashes:
>
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064%20%...
> 
> 03:39:30.219 28416   #
> 03:39:30.219 28416   # Fatal error in ../../v8/src/heap/heap.cc, line 1781
> 03:39:30.219 28416   # Check failed: InFromSpace(*p).
> 03:39:30.219 28416   #

I ran the webkit-tests locally (at least the http part) using 
  third_party/WebKit/Tools/Scripts/run-webkit-tests --debug 

Nothing crashing unexpectedly anymore.

[Michael Lippautz, 2016-04-20 08:50:15]

The CQ bit was checked by mlippautz@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-04-20 08:50:20]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1901093002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1901093002/40001

[Michael Achenbach, 2016-04-20 09:03:08]

I'll keep an eye on the bot after this lands...

[commit-bot: I haz the power, 2016-04-20 09:23:08]

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

[commit-bot: I haz the power, 2016-04-20 09:23:09]

Dry run: This issue passed the CQ dry run.

[Michael Lippautz, 2016-04-20 09:27:03]

On 2016/04/20 09:03:08, Michael Achenbach wrote:
> I'll keep an eye on the bot after this lands...

Thanks!

[Michael Lippautz, 2016-04-20 09:27:10]

The CQ bit was checked by mlippautz@chromium.org

[commit-bot: I haz the power, 2016-04-20 09:27:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1901093002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1901093002/40001

[commit-bot: I haz the power, 2016-04-20 09:29:42]

Description was changed from

==========
[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.
==========

to

==========
[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.
==========

[commit-bot: I haz the power, 2016-04-20 09:29:43]

Committed patchset #3 (id:40001)

[nodir1, 2016-04-22 18:43:51]

Description was changed from

==========
[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.
==========

to

==========
[heap] Add page evacuation mode for new->old

In a full mark-compact GC, instead of copying memory to old space for
pages that have more than X% live bytes, we just move the whole page over to old
space.

X=70 (default value)

BUG=chromium:581412
LOG=N
TBR=hpayer@chromium.org

This reverts commit 8b3337278f4202b058b37dcae35f66a7eef8f5c5.

Committed: https://crrev.com/2489738d4ad631580fa139b1bcc84f7f612fcbde
Cr-Commit-Position: refs/heads/master@{#35649}
==========

[nodir1, 2016-04-22 18:43:52]

Patchset 3 (id:??) landed as
https://crrev.com/2489738d4ad631580fa139b1bcc84f7f612fcbde
Cr-Commit-Position: refs/heads/master@{#35649}