On 24.03.2012, 20:16 Asher wrote:
There was also a the release of a majorly changed
MobileFrontend earlier
that day / prior night that line up with the first spike. The MF rewrite
doesn't perform well - MobileFrontend::DOMParse avg time went from 15ms to
150ms (~500ms at 99th) and it wouldn't be impossible for it to also impact
non-mobile performance.
DB, ES, and memcache latency look steady, so I suspect
it's all application
side.
Thanks for the heads up, Asher. I've committed thorough profiling in
<https://gerrit.wikimedia.org/r/3696>, would appreciate if someone
deployed it.
--
Best regards,
Max Semenik ([[User:MaxSem]])