I am (this is exactly bug 606574), but my understanding was that it does
not suppor Gonk yet?
If it does then this is less work :)
On 17/01/2014 04:05, Andrew Halberstadt wrote:
Vivien, are you aware of the existing event loop monitor built into
Gecko? You just need to set MOZ_INSTRUMENT_EVENT_LOOP=1.
See https://blog.mozilla.org/ted/2011/06/27/measuring-ui-responsiveness/
and
http://mxr.mozilla.org/mozilla-central/source/toolkit/xre/EventTracer.cpp#5
for more details.
On 16/01/14 07:41 PM, Vivien Nicolas wrote:
On 15/01/2014 20:48, Andrew Sutherland wrote:
However, the simplest/most pragmatic thing to do initially is probably
just to use the existing linux perf tool to generate logs of what's
happening during the test runs using "perf schedule" and when we see a
failure due to event loop sadness, we look at that log and decide if it
was a real failure and what we can do about it. There are a great set of
examples at http://lwn.net/Articles/353295/
I want to make bug 606574 works with gonk and integrate something in
devtools. That should provide us a Gecko mechanism to monitor the event
loop.
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