On 25.03.2012, 2:28 Platonides wrote: > On 24/03/12 21:36, Max Semenik wrote: >> And these graphs don't make any sense: >> https://graphite.wikimedia.org/dashboard/MobileFrontend-DOMParse >> the whole function's execution time is much larger than sum of its >> pieces. What's going on?
> Maybe it's a recursive function? No, it's not - unless there's some crazy PHP quirk causing output handler to be called several times. > I would have suspected that the parser fixes affected some common > extension making it slower. > Ganglia output shows that CPU load decreased, though. From a steady load > over 10k it became much more flaky, dropping to 9k (due to full > operations being slower?). > Is the revision hashing still running? If there are processes fetching > many old revisions from esternal storage it might be the hurting the > caches (such as taking "fresh" parsed pages out of memcached). Parser cache is in MySQL, you can't displace anything out of it by putting stuff into memcached. > Another idea would be related to db24 failure, if some hosts failed the > syncing of db.php and still pointed to it. -- Best regards, Max Semenik ([[User:MaxSem]]) _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
