Re: [Wikitech-l] English Wikipedia slow to load

2012-03-25 Thread Platonides
Max Semenik wrote: > Parser cache is in MySQL, you can't displace anything out of it by > putting stuff into memcached. You're wrong here. Although there's usually plenty of space, so this isn't somehting to be worried about. (I would link to a graphic of memcached servers, but I'm unable to find

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Leslie Carr
This appears to have been due to a network link issue. One of the uplinks from our row A switch in eqiad was spewing out input framing errors, causing some packets to be dropped. This link has been taken down for troubleshooting and the issue appears to be gone. Please let us know ASAP if you st

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Max Semenik
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'

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Platonides
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? I would have suspected

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Max Semenik
On 24.03.2012, 23:51 Patrick wrote: > On Sat, Mar 24, 2012 at 12:33 PM, Patrick Reilly > wrote: >> On Sat, Mar 24, 2012 at 12:15 PM, Max Semenik wrote: >>> On 24.03.2012, 20:16 Asher wrote: >>> There was also a the release of a majorly changed MobileFrontend earlier that day / prior n

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Patrick Reilly
On Sat, Mar 24, 2012 at 12:33 PM, Patrick Reilly wrote: > On Sat, Mar 24, 2012 at 12:15 PM, Max Semenik wrote: >> 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

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Patrick Reilly
On Sat, Mar 24, 2012 at 12:15 PM, Max Semenik wrote: > 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

Re: [Wikitech-l] English Wikipedia slow to load

2012-03-24 Thread Max Semenik
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 woul

[Wikitech-l] English Wikipedia slow to load

2012-03-23 Thread MZMcBride
Hi. There are over a dozen reports of general slowness with the English Wikipedia: https://en.wikipedia.org/w/index.php?oldid=483631204#is_it_me_or_is_wiki_ver y_slow.3F As I browsed and edited the site today, I experienced similar issues (painful slowness on intermittent page loads, loading hal