Re: Fighting kio_http_cache_cleaner
On Friday 21 August 2009 00:19:59 Christoph Burgmer wrote:
> For some time now kio_http_cache_cleaner has been making me mad by
> generating huge io in the background running on the least favorable
> ioniceness (should I say iobadness) regardless of other heavy io jobs, or
> the laptop being on batteries.
>
> iotop gives me the following:
>
> Total DISK READ: 656.84 K/s | Total DISK WRITE: 0.00 B/s
> TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
> 16484 be/4 christop 656.84 K/s 0.00 B/s 0.00 % 98.51 %
> kio_http_cache_cleaner
> 1 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % init [2]
> 2 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthreadd]
> 3 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [migration/0]
> 4 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/0]
>
> My cache size is 51200 (I guess KB) which should be KDE's default.
> Do others experience the same problem? Any hints on what to do about it?
>
> "killall kio_http_cache_cleaner" is my little friend and helper right now.
> I can't see any artifacts from not running the process every once and a
> while, so I guess there is no need for my hard-drive being bogged down that
> often.
All of these uncontrolled daemons are kde4's downfall.
To run iotop, I need to recompile my kernel to get: I/O accounting support
(CONFIG_TASKSTATS, CONFIG_TASK_DELAY_ACCT, CONFIG_TASK_IO_ACCOUNTING)
I only see the first one available in .config. I can manually set =y but there
are no traces of the others. Do I need them all? Where is this stuff in the
menuconfig UI?
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