* Re: [gentoo-user] Performance problem at writing big files and Multitasking
@ 2007-02-07 21:39 99% ` Daniel Pielmeier
0 siblings, 0 replies; 1+ results
From: Daniel Pielmeier @ 2007-02-07 21:39 UTC (permalink / raw
To: gentoo-user
> The hdparm optimizations, the CFQ scheduler and maybe low latency
> desktop in the kernel are the best way to make your desktop useable
> under heavy disk usage.These are my hdparm settings:
>
> /dev/hda:
> multcount = 16 (on)
> IO_support = 1 (32-bit)
> unmaskirq = 1 (on)
> using_dma = 1 (on)
> keepsettings = 0 (off)
> readonly = 0 (off)
> readahead = 256 (on)
> geometry = 26310/16/63, sectors = 26520480, start = 0
>
> cat /sys/block/hda/queue/scheduler
> noop [cfq]
>
> Linux c-68-85-77-239 2.6.20-gentoo #4 PREEMPT Tue Feb 6 17:03:56 EST
> 2007 i686 AMD Athlon(tm) XP 2000+ AuthenticAMD GNU/Linux
Now i am in front of my PC. I already use the cfq scheduler and have
low latency desktop enabled. I looked at the output of hdparm -I
/dev/sda and all seems to be ok by default.
> And check you have HZ set to 1000.
>
> $ grep HZ /usr/src/linux/.config
> # CONFIG_HZ_100 is not set
> # CONFIG_HZ_250 is not set
> CONFIG_HZ_1000=y
> CONFIG_HZ=1000
Thanks i will check if this helps, i have just set 250 HZ for timer
frequency.
> Could your problem be similar to this:
>
> http://marc.theaimsgroup.com/?l=gentoo-user&m=114252338111258&w=2
>
>
> Tom
Maybe, today the gentoo-sources-2.6.19-r5 become stable so i will try
the new kernel. I am also waiting for kernel 2.6.20 as it has a setting
for the core 2 duo in processor settings. Maybe i try the testing
version of it.
Also the new gcc compilers will support the core 2 duo directly, but i
think it will take some time till 4.2 or even 4.3 will become stable.
I show up here again and tell you if something improves the performance
of my system.
Regards
Daniel
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2007-02-07 16:00 ` [gentoo-user] Performance problem at writing big files and Multitasking Mike
2007-02-07 21:39 99% ` Daniel Pielmeier
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