[Bug 229745] Re: after fix for #215728 - Committing to urlclassifier3.sqlite still causes excessive CPU usage and disk I/O (the 2nd)

[stek79]

Interesting.

Alexander, do you know if the mozilla developers are working on this?

Thanks

2008/7/1 R (Chandra) Chandrasekhar <chandra at ee.uwa.edu.au>:

> At least one other person seems to have encountered a similar problem on
> Windows Vista. See post of June 24th, 2008 at:
>
> http://forums.mozillazine.org/viewtopic.php?f=7&p=3612185
>
> entitled
>
> Reducing disk I/O used by Firefox 3.0 • mozillaZine Forums
>
> where the poster writes:
>
> -----Quote----
> Looking at the Windows resource monitor, it seemed that places.sqlite and
> places.sqlite-journal were the main culprits of all the disk I/O.
> -----Unquote----
>
> --
> after fix for #215728 - Committing to urlclassifier3.sqlite still causes
> excessive CPU usage and disk I/O (the 2nd)
> https://bugs.launchpad.net/bugs/229745
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in The Mozilla Firefox Browser: Incomplete
> Status in "firefox-3.0" source package in Ubuntu: Invalid
> Status in "xulrunner-1.9" source package in Ubuntu: In Progress
> Status in firefox-3.0 in Ubuntu Hardy: Invalid
> Status in xulrunner-1.9 in Ubuntu Hardy: In Progress
> Status in firefox-3.0 in Ubuntu Intrepid: Invalid
> Status in xulrunner-1.9 in Ubuntu Intrepid: In Progress
>
> Bug description:
> Binary package hint: firefox
>
> some follow up comments from bug #215728
>
> [ https://bugs.edge.launchpad.net/ubuntu/+bug/215728/comments/118 ]:
>  Yes, there is still some heavy disk I/O going on. It's no where near as
> bad as it was before the update. This patch is a HUGE
>  improvement, but it still happens from time to time causing Firefox to
> become unresponsive for a few seconds.
>
>
> [ https://bugs.edge.launchpad.net/ubuntu/+bug/215728/comments/120 ]
>   actually I've just measured some firefox heavy IO activity, but as Nick
> reported, it is a matter of seconds and in my case it doesn't make the whole
> system irresponsive as it was before the patch.
>
> Luckily I had disktop running, so here is the output. I can say that the
> the slowdown that I felt was probably due to the large write of 5.5MB in 5
> seconds you can see at 18:28:31 - some random IO activity I guess.
>

-- 
after fix for #215728 - Committing to urlclassifier3.sqlite still causes excessive CPU usage and disk I/O (the 2nd)
https://bugs.launchpad.net/bugs/229745
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