Last modified: 2007-05-17 12:03:27 UTC

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Bug 8405 - Jaw-dropping slowness in loading all pages: 3-5 mins. per page
Jaw-dropping slowness in loading all pages: 3-5 mins. per page
Product: Wikimedia
Classification: Unclassified
General/Unknown (Other open bugs)
PC Windows XP
: Normal normal (vote)
: ---
Assigned To: Nobody - You can work on this!
Depends on:
  Show dependency treegraph
Reported: 2006-12-28 01:13 UTC by pioneer
Modified: 2007-05-17 12:03 UTC (History)
0 users

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Description pioneer 2006-12-28 01:13:11 UTC
Beginning about three weeks ago, there has been a dramatic slowness in 
opening/loading all pages - including the log-in page, watchlist page, all 
articles, etc.  What used to take only 5 - 10 seconds (tops), now takes up to 
five minutes (seriously!).  

The log-on page literally takes 3-5 minutes to load and appear.  When I fill-
in my ID and pw on the log-in page, it literally takes 3-5 minutes to confirm 
the log-in and get me to my watchlist.  Trying to open any article takes 3-5 
minutes per page.  Clicking on the "Edit" tab takes 3-5 minutes to open an 
edit page.  Clicking "Preview" takes 3-5 minutes to open the previewed text, 
etc.  Clicking "Save" after making an edit takes 3-5 minutes. Clicking 
History takes 3-5 minutes, checking the "diff" tab takes 3-5 minutes - you 
get the idea.

I'm behind a corporate firewall, but they don't report any change that could 
have caused this within the past month.

This problem does not occur when I access from my home computer.

Do you know of any problem that's causing WP to not play nice with corporate 
Comment 1 Aryeh Gregor (not reading bugmail, please e-mail directly) 2006-12-28 01:33:39 UTC
I'm experiencing some of this too within the past week or so.  Gmaxwell used me
and a couple of others as guinea pigs in #wikimedia-tech last night, and sent
the results off to mark.  His guess was some network congestion on the route
that certain clients were using.  I'm sure he wouldn't mind me reposting some
snippets here, for what they're worth to those of us who are suffering.

<NullC> adri: From Simetrical's packet traces it's clear the delay is due to
high packet loss between him and tampa.
<NullC> Lots of retransmits.
<NullC> adri: I had him pull once from AMS and ones from tampa.. The AMS is fast
the tampa moves like a slug in mud.
<NullC> adri: I'm guessing whatever upstream is involved has a saturated peering
link to someone... or the like.. The trace routes they are doing for me now will
tell me more.
<NullC> Hildanknight: I'm not sure yet. My best hyphothesis right now is that
there is a congested connection inside one of Wikimedia Tampa's ISPs. Becuase of
this congested link, some people would see slowness while others would not
depending on where they are on the internet.
<NullC> This many not, however, be correct.
<NullC> I wouldn't bet money on this being the correct solution until I have
identifyed the link which is congested. Because traffic is most likely taking a
different path from Simetrical to Tampa wikimedia than from Tampa wikimedia to
Simetrical,  it's a little hard to research.

He gave this as a workaround:

<NullC> Hildanknight: You will be much faster for now as a workaround if you
adjust your browser settings and set your proxy to port 80, but
you will only be able to go to wikimedia sites while it is set that way.
Comment 2 pioneer 2006-12-28 17:59:13 UTC
Well, I did the port 80, and three minutes to open.  I'm going to 
see if I can get the MIS tech folks here to ping the Main Page, and see if that 
turns up anything.
Comment 3 Antoine "hashar" Musso (WMF) 2007-05-17 12:03:27 UTC
Network slowness somewhere on user side. Reopen this bug with
a traceroute if the problem is still around.

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