All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=599934

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZynwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InFDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYzExL3RyYWNpbmcudHJhY2luZ193aXRoX2RlYnVnX292ZXJoZWFkL01heCBldmVudCBzaXplIGluIGJ5dGVzIHBlciBjYXRlZ29yeSAobmV0bG9nKQwLEg1TdG9wcGFnZUFsZXJ0GJyrFww,agxzfmNocm9tZXBlcmZynwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InFDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYzEwL3RyYWNpbmcudHJhY2luZ193aXRoX2RlYnVnX292ZXJoZWFkL01heCBldmVudCBzaXplIGluIGJ5dGVzIHBlciBjYXRlZ29yeSAobmV0bG9nKQwLEg1TdG9wcGFnZUFsZXJ0GMGqFww,agxzfmNocm9tZXBlcmZypAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InZDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvdHJhY2luZy50cmFjaW5nX3dpdGhfZGVidWdfb3ZlcmhlYWQvTWF4IGV2ZW50IHNpemUgaW4gYnl0ZXMgcGVyIGNhdGVnb3J5IChuZXRsb2cpDAsSDVN0b3BwYWdlQWxlcnQYpaoXDA,agxzfmNocm9tZXBlcmZylAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImZDaHJvbWl1bVBlcmYvd2luLXplbmJvb2svdHJhY2luZy50cmFjaW5nX3dpdGhfZGVidWdfb3ZlcmhlYWQvTWF4IGV2ZW50IHNpemUgaW4gYnl0ZXMgcGVyIGNhdGVnb3J5ICh2OCkMCxINU3RvcHBhZ2VBbGVydBjtoxcM,agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvd2luLXplbmJvb2svdHJhY2luZy50cmFjaW5nX3dpdGhfZGVidWdfb3ZlcmhlYWQvTWF4IGV2ZW50IHNpemUgaW4gYnl0ZXMgcGVyIGNhdGVnb3J5ICh0b3BsZXZlbCkMCxINU3RvcHBhZ2VBbGVydBjiqxcM,agxzfmNocm9tZXBlcmZylAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImZDaHJvbWl1bVBlcmYvd2luLXplbmJvb2svdHJhY2luZy50cmFjaW5nX3dpdGhfZGVidWdfb3ZlcmhlYWQvTWF4IGV2ZW50IHNpemUgaW4gYnl0ZXMgcGVyIGNhdGVnb3J5IChjYykMCxINU3RvcHBhZ2VBbGVydBj1qhcM,agxzfmNocm9tZXBlcmZylgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImhDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS90cmFjaW5nLnRyYWNpbmdfd2l0aF9kZWJ1Z19vdmVyaGVhZC9NYXggZXZlbnQgc2l6ZSBpbiBieXRlcyBwZXIgY2F0ZWdvcnkgKHY4KQwLEg1TdG9wcGFnZUFsZXJ0GO6jFww,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS90cmFjaW5nLnRyYWNpbmdfd2l0aF9kZWJ1Z19vdmVyaGVhZC9NYXggZXZlbnQgc2l6ZSBpbiBieXRlcyBwZXIgY2F0ZWdvcnkgKHRvcGxldmVsKQwLEg1TdG9wcGFnZUFsZXJ0GIumFww,agxzfmNocm9tZXBlcmZymgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImxDaHJvbWl1bVBlcmYvbGludXgtcmVsZWFzZS90cmFjaW5nLnRyYWNpbmdfd2l0aF9kZWJ1Z19vdmVyaGVhZC9NYXggZXZlbnQgc2l6ZSBpbiBieXRlcyBwZXIgY2F0ZWdvcnkgKG5ldGxvZykMCxINU3RvcHBhZ2VBbGVydBjtqxcM


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

chromium-rel-mac-retina
chromium-rel-mac10
chromium-rel-mac11
linux-release
win-zenbook

I don't see what is the regression here.  majidvp@, can you update the bug?

gentle ping ... majidvp@

The benchmark no longer reports any data for any of the "per category" subtests which includes v8, toplevel, cc. This has happened on on 2016-3-22.

See for example these two: https://chromeperf.appspot.com/report?sid=b8c3dd982a95b454ee807e9d9a281ca534f4493fd6d680062edc1b621c63343b

So far I haven't figured out what happened. Any idea who owns "tracing_with_debug_overhead" benchmark?

Deleted: Screen Shot 2016-04-22 at 4.47.49 PM.png 555 KB

	Screen Shot 2016-04-22 at 4.47.49 PM.png 555 KB View Download

Oystein, can you help triage since Zhen is on leave?

Weekly Ping.

Intentional change in https://codereview.chromium.org/1818923003