hdparm DMA=on (Nautilus Uses 100% CPU)
René L. Reingard
reingard at hispeed.ch
Fri May 6 17:21:45 UTC 2005
> Subject: Re: Nautilus Uses 100% CPU
> It sounds like dma is not active on your machine.
I just checked this myself and find this at the end of my hdparm.conf:
These lines are all checked with #. Does this work?
René
#/dev/discs/disc0/disc {
# mult_sect_io = 16
# write_cache = off
# spindown_time = 240
#}
#/dev/discs/disc1/disc {
# mult_sect_io = 32
# spindown_time = 36
# write_cache = off
#}
#/dev/cdroms/cdrom0 {
# dma = on
# interrupt_unmask = on
# io32_support = 0
#}
#/dev/hda {
# mult_sect_io = 16
# write_cache = off
# dma = on
#}
#command_line {
# hdparm -q -m16 -q -W0 -q -d1 /dev/hda
#}
> You can check it with hdparm /dev/hda hdparm /dev/hdc (or whatever your
> harddisk and cd are) You can enable it with hdparm -d1 /dev/hda hdparm
> -d1 /dev/hdc
>
> If you want this setting to be permanent do so by editing
> /etc/hdparm.conf. Add the following sections:
>
> /dev/hda {
> dma = on
> }
> /dev/hdc {
> dma = on
> }
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