All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=627518

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZykQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImNDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1pbmNyZW1lbnRhbC1maW5hbGl6ZV9hdmcMCxINU3RvcHBhZ2VBbGVydBjv0RgM,agxzfmNocm9tZXBlcmZykQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImNDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1pbmNyZW1lbnRhbC1maW5hbGl6ZV9tYXgMCxINU3RvcHBhZ2VBbGVydBjv0RgM,agxzfmNocm9tZXBlcmZylQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImdDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1pbmNyZW1lbnRhbC1maW5hbGl6ZV9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY79EYDA,agxzfmNocm9tZXBlcmZykwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImVDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1sYXRlbmN5LW1hcmstY29tcGFjdG9yX2F2ZwwLEg1TdG9wcGFnZUFsZXJ0GO_RGAw,agxzfmNocm9tZXBlcmZykwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImVDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1sYXRlbmN5LW1hcmstY29tcGFjdG9yX21heAwLEg1TdG9wcGFnZUFsZXJ0GO_RGAw,agxzfmNocm9tZXBlcmZylwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImlDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1sYXRlbmN5LW1hcmstY29tcGFjdG9yX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBjv0RgM,agxzfmNocm9tZXBlcmZykgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImRDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1tZW1vcnktbWFyay1jb21wYWN0b3JfYXZnDAsSDVN0b3BwYWdlQWxlcnQY79EYDA,agxzfmNocm9tZXBlcmZykgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImRDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1tZW1vcnktbWFyay1jb21wYWN0b3JfbWF4DAsSDVN0b3BwYWdlQWxlcnQY79EYDA,agxzfmNocm9tZXBlcmZylgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImhDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1tZW1vcnktbWFyay1jb21wYWN0b3JfcGN0XzA5MAwLEg1TdG9wcGFnZUFsZXJ0GO_RGAw,agxzfmNocm9tZXBlcmZyhgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IlhDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1zY2F2ZW5nZXJfYXZnDAsSDVN0b3BwYWdlQWxlcnQY79EYDA,agxzfmNocm9tZXBlcmZyhgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IlhDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1zY2F2ZW5nZXJfbWF4DAsSDVN0b3BwYWdlQWxlcnQY79EYDA,agxzfmNocm9tZXBlcmZyigELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IlxDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfdGJtdjIvSWRsZS12OC1nYy1zY2F2ZW5nZXJfcGN0XzA5MAwLEg1TdG9wcGFnZUFsZXJ0GO_RGAw,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX2F2ZwwLEg1TdG9wcGFnZUFsZXJ0GPXRGAw,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX21heAwLEg1TdG9wcGFnZUFsZXJ0GPXRGAw,agxzfmNocm9tZXBlcmZyoAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InJDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBj10RgM,agxzfmNocm9tZXBlcmZyngELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InBDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfYXZnDAsSDVN0b3BwYWdlQWxlcnQY9dEYDA,agxzfmNocm9tZXBlcmZyngELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InBDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfbWF4DAsSDVN0b3BwYWdlQWxlcnQY9dEYDA,agxzfmNocm9tZXBlcmZyogELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InRDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfcGN0XzA5MAwLEg1TdG9wcGFnZUFsZXJ0GPXRGAw,agxzfmNocm9tZXBlcmZynQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im9DaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9hdmcMCxINU3RvcHBhZ2VBbGVydBj10RgM,agxzfmNocm9tZXBlcmZynQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im9DaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9tYXgMCxINU3RvcHBhZ2VBbGVydBj10RgM,agxzfmNocm9tZXBlcmZyoQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InNDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY9dEYDA,agxzfmNocm9tZXBlcmZykQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImNDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLXNjYXZlbmdlcl9hdmcMCxINU3RvcHBhZ2VBbGVydBj10RgM,agxzfmNocm9tZXBlcmZykQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImNDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLXNjYXZlbmdlcl9tYXgMCxINU3RvcHBhZ2VBbGVydBj10RgM,agxzfmNocm9tZXBlcmZylQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImdDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLXNjYXZlbmdlcl9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY9dEYDA,agxzfmNocm9tZXBlcmZyogELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InRDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX2F2ZwwLEg1TdG9wcGFnZUFsZXJ0GOnRGAw,agxzfmNocm9tZXBlcmZyogELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InRDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX21heAwLEg1TdG9wcGFnZUFsZXJ0GOnRGAw,agxzfmNocm9tZXBlcmZypgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InhDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZypAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InZDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfYXZnDAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZypAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InZDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfbWF4DAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZyqAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InpDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfcGN0XzA5MAwLEg1TdG9wcGFnZUFsZXJ0GOnRGAw,agxzfmNocm9tZXBlcmZyowELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InVDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9hdmcMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZyowELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InVDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9tYXgMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZypwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InlDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZylwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImlDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLXNjYXZlbmdlcl9hdmcMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZylwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImlDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLXNjYXZlbmdlcl9tYXgMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZymwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im1DaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF90Ym12Mi9JZGxlLXY4LWdjLXNjYXZlbmdlcl9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZyrQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50In9DaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF9iYWNrZ3JvdW5kX3RibXYyL0lkbGUtdjgtZ2MtaW5jcmVtZW50YWwtZmluYWxpemVfYXZnDAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZyrQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50In9DaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF9iYWNrZ3JvdW5kX3RibXYyL0lkbGUtdjgtZ2MtaW5jcmVtZW50YWwtZmluYWxpemVfbWF4DAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZysgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoMBQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWluY3JlbWVudGFsLWZpbmFsaXplX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZysAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoEBQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfYXZnDAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZysAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoEBQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfbWF4DAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZytAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoUBQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLWxhdGVuY3ktbWFyay1jb21wYWN0b3JfcGN0XzA5MAwLEg1TdG9wcGFnZUFsZXJ0GOnRGAw,agxzfmNocm9tZXBlcmZyrwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoABQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9hdmcMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZyrwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoABQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9tYXgMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZyswELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoQBQ2hyb21pdW1QZXJmRnlpL2Nocm9taXVtLXJlbC13aW43LWdwdS1pbnRlbC9tZW1vcnkubG9uZ19ydW5uaW5nX2lkbGVfZ21haWxfYmFja2dyb3VuZF90Ym12Mi9JZGxlLXY4LWdjLW1lbW9yeS1tYXJrLWNvbXBhY3Rvcl9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY6dEYDA,agxzfmNocm9tZXBlcmZyogELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InRDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF9iYWNrZ3JvdW5kX3RibXYyL0lkbGUtdjgtZ2Mtc2NhdmVuZ2VyX2F2ZwwLEg1TdG9wcGFnZUFsZXJ0GOnRGAw,agxzfmNocm9tZXBlcmZyogELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InRDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF9iYWNrZ3JvdW5kX3RibXYyL0lkbGUtdjgtZ2Mtc2NhdmVuZ2VyX21heAwLEg1TdG9wcGFnZUFsZXJ0GOnRGAw,agxzfmNocm9tZXBlcmZypgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InhDaHJvbWl1bVBlcmZGeWkvY2hyb21pdW0tcmVsLXdpbjctZ3B1LWludGVsL21lbW9yeS5sb25nX3J1bm5pbmdfaWRsZV9nbWFpbF9iYWNrZ3JvdW5kX3RibXYyL0lkbGUtdjgtZ2Mtc2NhdmVuZ2VyX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBjp0RgM,agxzfmNocm9tZXBlcmZymAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImpDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtaW5jcmVtZW50YWwtZmluYWxpemVfYXZnDAsSDVN0b3BwYWdlQWxlcnQY7NEYDA,agxzfmNocm9tZXBlcmZymAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImpDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtaW5jcmVtZW50YWwtZmluYWxpemVfbWF4DAsSDVN0b3BwYWdlQWxlcnQY7NEYDA,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtaW5jcmVtZW50YWwtZmluYWxpemVfcGN0XzA5MAwLEg1TdG9wcGFnZUFsZXJ0GOzRGAw,agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtbGF0ZW5jeS1tYXJrLWNvbXBhY3Rvcl9hdmcMCxINU3RvcHBhZ2VBbGVydBjs0RgM,agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtbGF0ZW5jeS1tYXJrLWNvbXBhY3Rvcl9tYXgMCxINU3RvcHBhZ2VBbGVydBjs0RgM,agxzfmNocm9tZXBlcmZyngELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InBDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtbGF0ZW5jeS1tYXJrLWNvbXBhY3Rvcl9wY3RfMDkwDAsSDVN0b3BwYWdlQWxlcnQY7NEYDA,agxzfmNocm9tZXBlcmZymQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImtDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtbWVtb3J5LW1hcmstY29tcGFjdG9yX2F2ZwwLEg1TdG9wcGFnZUFsZXJ0GOzRGAw,agxzfmNocm9tZXBlcmZymQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImtDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtbWVtb3J5LW1hcmstY29tcGFjdG9yX21heAwLEg1TdG9wcGFnZUFsZXJ0GOzRGAw,agxzfmNocm9tZXBlcmZynQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im9DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2MtbWVtb3J5LW1hcmstY29tcGFjdG9yX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBjs0RgM,agxzfmNocm9tZXBlcmZyjQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Il9DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2Mtc2NhdmVuZ2VyX2F2ZwwLEg1TdG9wcGFnZUFsZXJ0GOzRGAw,agxzfmNocm9tZXBlcmZyjQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Il9DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2Mtc2NhdmVuZ2VyX21heAwLEg1TdG9wcGFnZUFsZXJ0GOzRGAw,agxzfmNocm9tZXBlcmZykQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImNDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1oZGQvbWVtb3J5LmxvbmdfcnVubmluZ19pZGxlX2dtYWlsX3RibXYyL0lkbGUtdjgtZ2Mtc2NhdmVuZ2VyX3BjdF8wOTAMCxINU3RvcHBhZ2VBbGVydBjs0RgM


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

chromium-rel-mac-hdd
chromium-rel-win7-gpu-intel
linux-release

Started failing between:
https://chromium.googlesource.com/chromium/src/+/a019505754ffdccbadaafb17a75a2e321650ae8f (403683)
and
https://chromium.googlesource.com/chromium/src/+/7218f0e0914c142d40423fffd13ad68685a199b9 (403704)

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9007324172071897664

===== BISECT JOB RESULTS =====
Status: completed


===== TESTED REVISIONS =====
Revision         Exit Code  Std Dev  N   Good?
chromium@403683  0          N/A      20  good
chromium@403704  0          N/A      20  bad

Bisect job ran on: linux_perf_bisect
Bug ID: 627518

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests memory.long_running_idle_gmail_tbmv2
Test Metric: Idle-v8-gc-incremental-finalize_avg/Idle-v8-gc-incremental-finalize_avg
Relative Change: 0.00%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/linux_perf_bisect/builds/6591
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9007324172071897664


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5852654463352832

| 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 Tests>AutoBisect.  Thank you!

We're seeing some metrics successfully reported for these runs, but we're missing a bunch too.

ulan@, do you have any insight on what could be going on here?

We removed {Animation,Response,Idle}-v8-gc* metrics, so this is expected.

Thanks. How should I have determined this?

`git log -p -S Idle-v8-gc`

doesn't return any results.

Sorry for that. The CL was landed in catapult: https://codereview.chromium.org/2106743005

One way to find it:
cd third_party/catapult
git log --grep Idle-v8-gc

Ah, thanks. I should get in the habit of also checking the catapult repo. Thanks!