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Issue 895350 link

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Issue metadata

Status: WontFix
Owner:
Last visit > 30 days ago
Closed: Oct 23
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1%-3.4% regression in system_health.memory_mobile at 599495:599511

Project Member Reported by npm@chromium.org, Oct 15

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=895350

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0f2ea6b89359791b740165fa76117f856e8631ca9d0f4a03cb37ed356dd93162


Bot(s) for this bug's original alert(s):

Android Nexus5X WebView Perf
Android Nexus6 WebView Perf
Win 7 Perf

system_health.memory_mobile - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

system_health.memory_desktop - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

memory.top_10_mobile - Benchmark documentation link:
  None
Cc: hpayer@chromium.org
Owner: hpayer@chromium.org
Status: Assigned (was: Untriaged)
📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/118d6382e40000

[heap] Externalize mark bitmap. by hpayer@chromium.org
https://chromium.googlesource.com/v8/v8/+/17890f67fbd1cafa33f472559f09a1fad70993ce
memory:webview:all_processes:reported_by_os:system_memory:native_heap:proportional_resident_size: 2.237e+07 → 2.292e+07 (+5.501e+05)

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Benchmark documentation link:
  None
Status: WontFix (was: Assigned)
This CL shifts memory around: from V8 heap to malloc. Should be the same in overall.

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