All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=638359

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZymwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im1DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0Jsb2dnZXJfcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZysAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoEBQ2hyb21pdW1QZXJmL2Nocm9taXVtLXJlbC1tYWMtcmV0aW5hL3Ntb290aG5lc3MudG9wXzI1X3Ntb290aC9maXJzdF9nZXN0dXJlX3Njcm9sbF91cGRhdGVfbGF0ZW5jeS9Eb2NzICAoMSBvcGVuIGRvY3VtZW50IHRhYilfcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZymAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50ImpDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0VTUE5fcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0ZhY2Vib29rX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GOLuGAw,agxzfmNocm9tZXBlcmZynAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L0xpbmtlZEluX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GOLuGAw,agxzfmNocm9tZXBlcmZynQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im9DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1BpbnRlcmVzdF9yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZymwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im1DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1R3aXR0ZXJfcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZynwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InFDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1dlYXRoZXIuY29tX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GOLuGAw,agxzfmNocm9tZXBlcmZypQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IndDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1dpa2lwZWRpYSAoMSB0YWIpX3JlZgwLEg1TdG9wcGFnZUFsZXJ0GOLuGAw,agxzfmNocm9tZXBlcmZynQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50Im9DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L1dvcmRwcmVzc19yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZyrAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50In5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19hbnN3ZXJzLnlhaG9vLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZypgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InhDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19ib29raW5nLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZyqgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InxDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19nYW1lcy55YWhvby5jb21fcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZyqQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IntDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19uZXdzLnlhaG9vLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZyrAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50In5DaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX19zcG9ydHMueWFob28uY29tX19yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZyqQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IntDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX190ZWNoY3J1bmNoLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZyqQELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IntDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX193d3cuYW1hem9uLmNvbV9yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZypwELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InlDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX193d3cuZWJheS5jb21fcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZyqgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50InxDaHJvbWl1bVBlcmYvY2hyb21pdW0tcmVsLW1hYy1yZXRpbmEvc21vb3RobmVzcy50b3BfMjVfc21vb3RoL2ZpcnN0X2dlc3R1cmVfc2Nyb2xsX3VwZGF0ZV9sYXRlbmN5L2h0dHBfX193d3cueW91dHViZS5jb21fcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA,agxzfmNocm9tZXBlcmZysgELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IoMBQ2hyb21pdW1QZXJmL2Nocm9taXVtLXJlbC1tYWMtcmV0aW5hL3Ntb290aG5lc3MudG9wXzI1X3Ntb290aC9maXJzdF9nZXN0dXJlX3Njcm9sbF91cGRhdGVfbGF0ZW5jeS9odHRwc19fX21haWwuZ29vZ2xlLmNvbV9tYWlsX19yZWYMCxINU3RvcHBhZ2VBbGVydBji7hgM,agxzfmNocm9tZXBlcmZyyAELEhNTdG9wcGFnZUFsZXJ0UGFyZW50IpkBQ2hyb21pdW1QZXJmL2Nocm9taXVtLXJlbC1tYWMtcmV0aW5hL3Ntb290aG5lc3MudG9wXzI1X3Ntb290aC9maXJzdF9nZXN0dXJlX3Njcm9sbF91cGRhdGVfbGF0ZW5jeS9odHRwc19fX3BsdXMuZ29vZ2xlLmNvbV8xMTAwMzE1MzUwMjAwNTE3Nzg5ODlfcG9zdHNfcmVmDAsSDVN0b3BwYWdlQWxlcnQY4u4YDA


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

chromium-rel-mac-retina

Was first_gesture_scroll_update_latency disabled somehow? It looks like it's still in smoothness.py.

This is happening all over the place, and I'm not sure why yet.

It wasn't intentional. I still haven't found a device that reproduces the issue.

I just got ahold of a Nexus 9, and will be giving that a try (hopefully today).

tdresser, any update?

This has recovered.