[MPlayer-users] MPlayer performance degradation after system upgrade

Thierry Delaitre delaitt at cpc.wmin.ac.uk
Sun Feb 16 21:23:00 CET 2003

On Sun, 16 Feb 2003, Net Llama! wrote:

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On 02/16/03 11:29, Thierry Delaitre wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> > 
> > Hi,
> > 
> > I've just upgraded my PIII/800 from redhat 7.0 to redhat 8.0 with kernel
> > 2.4.18-24.8.0. I'm using MPlayer-0.90rc4 with DXR3 (em8300-13.0) support.
> > 
> > Performance does not seem to be as good as it used to be. MPlayer is now
> > much more sentitive to CPU load. Before I could compile a program or
> > browse the web at the same time as watching a DIVX or DVD on my DXR3
> > without noticing any frames being dropped. Also, if I play DVDs, I can
> > hear & see the sound & video stopping briefly for few milliseconds every
> > few seconds even when there are no other cpu bound processes running.
> > 
> > What do I need to investigate in order to remedy this ?
> hdparm

DMA settings are already enabled on all my IDE disks except for the DVD

[root]# dmesg | grep -i dvd
hdc: ATAPI 40X DVD-ROM drive, 512kB Cache
[root at gnu root]# hdparm -d 1 /dev/hdc

 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)

hum, dma cannot be set ! is this a feature ?


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