Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975555262855285392

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-incremental-finalize_sum/browse_social/browse_social_facebook_infinite_scroll

Revision             Result                  N
chromium@480979      6.53871 +- 7.02552      21      good
chromium@481093      6.19529 +- 5.81349      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.facebook.infinite.scroll v8.browsing_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975555262855285392

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4958345225568256


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975543340047626432

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-incremental-finalize_sum/browse_social/browse_social_facebook_infinite_scroll

Revision             Result                  N
chromium@480979      2.9577 +- 1.81186       20      good
chromium@481093      3.30933 +- 4.23501      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.facebook.infinite.scroll v8.browsing_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975543340047626432

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4958345225568256


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

the graphs https://chromeperf.appspot.com/group_report?bug_id=737478

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975533333905371600

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-total_sum/browse_media/browse_media_youtube

Revision             Result                  N
chromium@480892      391.833 +- 218.768      21      good
chromium@481000      385.651 +- 230.308      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.youtube v8.browsing_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975533333905371600

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6667740061892608


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975520690261106848

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-total_sum/browse_media/browse_media_youtube

Revision             Result                  N
chromium@480892      377.233 +- 278.318      21      good
chromium@481000      371.141 +- 283.597      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.youtube v8.browsing_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975520690261106848

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6667740061892608


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

https://chromeperf.appspot.com/group_report?bug_id=737478

Graphs suggest that the regression is caused by 512K initial semi-space