Re: [xwiki-users] Activity performance is slow

You might be fooled by the caches. Depending on what other visitors visit and the mysql query cache, the time to redraw the page might take more or less. I suggest you look at the mysql queries and you run them manually with the "NO CACHE" setting to see if the volume of data creates the slowness issue. I think I found the issue. With the new indexes there are no indexes on the ASE_REQUESTID column Try running this query select /*! SQL_NO_CACHE */ activityev0_.ase_eventid as ase1_32_, activityev0_.ase_requestid as ase2_32_, activityev0_.ase_stream as ase3_32_, activityev0_.ase_date as ase4_32_, activityev0_.ase_priority as ase5_32_, activityev0_.ase_type as ase6_32_, activityev0_.ase_application as ase7_32_, activityev0_.ase_user as ase8_32_, activityev0_.ase_wiki as ase9_32_, activityev0_.ase_space as ase10_32_, activityev0_.ase_page as ase11_32_, activityev0_.ase_url as ase12_32_, activityev0_.ase_title as ase13_32_, activityev0_.ase_body as ase14_32_, activityev0_.ase_version as ase15_32_, activityev0_.ase_param1 as ase16_32_, activityev0_.ase_param2 as ase17_32_, activityev0_.ase_param3 as ase18_32_, activityev0_.ase_param4 as ase19_32_, activityev0_.ase_param5 as ase20_32_ from activitystream_events activityev0_ where activityev0_.ase_requestid='**55616298-1320309892000-**18xovYho' order by activityev0_.ase_date desc If it takes even more than 0.5 second given the repetitivity of this type of query this can lead to 10 seconds in the end. You can see your indexes like that: show indexes from activitystream_events; Then create this index: create index ase_requestid on activitystream_events (ase_requestid(200)); and rerun the query and the activity stream. I believe you might be better of having CheckIndexes create additional indexes for you even if that leads to duplicated indexes, since there might be some more missing indexes. I've sent a mail to devs to discuss why the indexes in Admin Tools are different than the ones now automatically created by XWiki. Ludovic 2011/11/5 Yang Li<yang.lee.cool(a)gmail.com>