All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=752415

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1b6828d979950420c202673d38d9d96744849dafbe630556ea222295a3421ee4


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

chromium-rel-mac12
chromium-rel-win10

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972207440760983104

=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : system_health.memory_desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:cc:effective_size_avg/load_search/load_search_ebay
  Change       : 14.67% | 14257406.8571 -> 16507573.7143

Suspected Commit Range
  2 commits in range
  https://chromium.googlesource.com/chromium/src/+log/2398196195d7a4ca3e89ea4a173a53f3b0e89593..ffe169fbb7420041bca7248dab309d32143dee5b


Revision             Result                   N
chromium@490799      14257407 +- 1009456      14       good
chromium@490841      14829384 +- 4134177      14       good
chromium@490862      14566947 +- 3235521      14       good
chromium@490872      14879121 +- 5586062      21       good
chromium@490877      14887313 +- 4110421      14       good
chromium@490879      15424767 +- 5471773      14       good
chromium@490880      ---                      ---      build failure
chromium@490881      16507574 +- 5676676      14       bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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=load.search.ebay system_health.memory_desktop

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972207440760983104


For feedback, file a bug with component Speed>Bisection

All these came back down eventually.