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Joehoyle (Joe Hoyle)
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Feb 21 2018, 10:32 PM (90 w, 3 d)
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Recent Activity

Nov 26 2018

Joehoyle added a comment to T205059: Excimer: new profiler for PHP.

FYI I've been following along here, and I checked out the excimer build - super cool, worked well for me! I just had a question around the scope. When I tried it I noticed inbuilt PHP functions were not part of the sample, so if I have a function that calls sleep or curl_exec, I don't see this as part of the sample. I assumed this is because inbuilt functions use a different API. Is there plan to include inbuilt php functions in the samples?

Nov 26 2018, 4:05 PM · Core Platform Team Workboards (Done with CPT), serviceops, Core Platform Team (PHP7 (TEC4)), Excimer, Performance-Team (Radar), PHP 7.1 support

Mar 7 2018

Joehoyle added a comment to T176916: Set up sampling profiler for PHP 7 (alternative to HHVM Xenon).

If I understand the above numbers correctly, this is using xhprof_enable, which is orders of magnitude slower than xhprof_sample_enable. We're only using the latter. I'd recommend testing xhprof_sample_enable before looking at an out-of-process approach (incidentally I have tries this in the past with dtrace or similar to use os level markers, but never made good progress.)

Mar 7 2018, 2:01 AM · Core Platform Team Workboards (Done with CPT), PHP 7.1 support, Core Platform Team (PHP7 (TEC4)), Performance-Team

Feb 21 2018

Joehoyle added a comment to T176916: Set up sampling profiler for PHP 7 (alternative to HHVM Xenon).

I thought it would be good to share an update as I've been working on our XHProf rollout this week.

Feb 21 2018, 10:38 PM · Core Platform Team Workboards (Done with CPT), PHP 7.1 support, Core Platform Team (PHP7 (TEC4)), Performance-Team