Dear people,
I have a problem with kernel 2.4.17 and as far as I have testen all the 2.4.X
kernels before it. When handling large files, like moving or viewing movies
(700 Mb) (with mplayer) my system suddenly slows down a lot. This can only be
repaired by a reboot. hdparm -Tt /dev/hdX values drop from around 25 MB/s to
around 8 MB/s but DMA is still on (at least that is what hdaprm reports). In
is a such a state it is imposible to burn cds for instance but networkspeed is
unharmed.
My system is a AMD Athlon 650 on a Aopen AK74 (VIA chipset )/
640Mb memory/NVidia TNT2 with X4 driver from NVidia/2 network cards (vanilla)/
SoundBlaster 128 with ALSA drivers/128MB swap.
I tested with 2.4.17/2.4.10/2.4.10-ac4/2.4.6 and they all have this problem.
Is this a well-known problem for 2.4.X kernels? Is there a work-around
available, so I can happily watch movies again?
with best regards,
Christiaan Kok
> repaired by a reboot. hdparm -Tt /dev/hdX values drop from around 25 MB/s to
> around 8 MB/s but DMA is still on (at least that is what hdaprm reports). In
> is a such a state it is imposible to burn cds for instance but networkspeed is
> unharmed.
Is anything else logged like disk timeouts before the slow down ?
On Fri, Jan 11, 2002 at 11:04:59AM +0100, Christiaan Kok wrote:
> Dear people,
>
> I have a problem with kernel 2.4.17 and as far as I have testen all the 2.4.X
> kernels before it. When handling large files, like moving or viewing movies
> (700 Mb) (with mplayer) my system suddenly slows down a lot. This can only be
> repaired by a reboot. hdparm -Tt /dev/hdX values drop from around 25 MB/s to
> around 8 MB/s but DMA is still on (at least that is what hdaprm reports). In
> is a such a state it is imposible to burn cds for instance but networkspeed is
> unharmed.
How slow? Does it always happen when playing large files with mplayer
or only some of the time?
I've run into a similar sounding problem.
Running mplayer, sometimes, perhaps 1 to 50 runs, the system becomes
nearly unresponsive. I can switch virtual desktops in X, via WM,
promptly. Through redraws of the switched-to desktop are slow.
xmms playing music continues to play fine.
rxvt's have about a 4 second response time.
Generally, I can manage rebooting the laptop.
Originally I blamed low-latency patches, and have switch back to
2.4.17 with preempt-patch.
--
Brian Litzinger <[email protected]>
Copyright (c) 2002 By Brian Litzinger, All Rights Reserved
On Friday 11 January 2002 15:56, [email protected] wrote:
> On Fri, Jan 11, 2002 at 11:04:59AM +0100, Christiaan Kok wrote:
> > Dear people,
> >
> > I have a problem with kernel 2.4.17 and as far as I have testen all the
> > 2.4.X kernels before it. When handling large files, like moving or
> > viewing movies (700 Mb) (with mplayer) my system suddenly slows down a
> > lot. This can only be repaired by a reboot. hdparm -Tt /dev/hdX values
> > drop from around 25 MB/s to around 8 MB/s but DMA is still on (at least
> > that is what hdaprm reports). In is a such a state it is imposible to
> > burn cds for instance but networkspeed is unharmed.
>
> How slow? Does it always happen when playing large files with mplayer
> or only some of the time?
>
> I've run into a similar sounding problem.
>
> Running mplayer, sometimes, perhaps 1 to 50 runs, the system becomes
> nearly unresponsive. I can switch virtual desktops in X, via WM,
> promptly. Through redraws of the switched-to desktop are slow.
>
> xmms playing music continues to play fine.
>
> rxvt's have about a 4 second response time.
>
> Generally, I can manage rebooting the laptop.
>
> Originally I blamed low-latency patches, and have switch back to
> 2.4.17 with preempt-patch.
I'm assuming that you have checked to make sure that your system
hasn't run out of memory and is swapping heavily. If mplayer had
a memory leak this could be the expected behaviour. [when in X,
I usually keep xosview or some similar meter open so that I can
see cpu, memory, and swap usage.]
--
[email protected].