On 30/09/2013 2:48 PM, Jim Chen wrote:
So far I looked at the main thread hang monitor [1], but it seems to make a lot of assumptions about the main thread. I think it would make sense to have a separate, generic hang monitor that can monitor multiple other threads.
I like the idea, but with Benjamin's caveats
The hang monitor would then relay counts/histogram of hangs to telemetry. It would be even better if we can get stacks.
Getting stacks will not be difficult, you can use the same infrastructure as the chrome-hang reporter.
Are you interested in permanent hangs or transient hangs? You'll have to make sure the browser can still exit properly when the hangs you're interested occur, otherwise Telemetry might not get a chance to write down the hang info to disk at session exit and it will never get reported.
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