hald causing stutters
Rodd Clarkson
rodd at clarkson.id.au
Thu Mar 10 12:12:27 UTC 2005
On Thu, 2005-03-10 at 12:20 +0100, Arjan van de Ven wrote:
> On Thu, 2005-03-10 at 11:03 +0000, Richard Hughes wrote:
> > Rodd Clarkson <rodd <at> clarkson.id.au> writes:
> > > Watching my CPU use, I get a spike every 5 seconds (a cheap one thousand
> > > and one, two thousand and two quess).
> > > This is really quite annoying. It's essentially a pause in your UI
> > > every 5 seconds or so, including music that's playing and the likes.
> >
> > Oops. The new acpi check code polls every 5 seconds to support laptops that
> > don't give ACPI events. I'm not sure why the poll would cause such a massive
> > chunk of CPU. David,
>
> the BIOS can take however long it wants to report certain things.
> Polling for battery can easily take a few dozen miliseconds. Asking more
> complex stuff can take longer.
> It's really better to never poll ;(
> (I realize the user experience isnt great there if the bios is crippled,
> but well.....)
I don't know what you would define as crippled, but I'm on a 4 day old
Dell Inspiron 8600 with a 2GHz processor, 768MB Ram.
Interestingly, and this may have nothing to do with it, but even though
I have a 780MB swap partition and fstab seems to have picked it up, it
doesn't seem to be 'enabled'. I mention this because I've heard that
the kernel likes to have 'some' swap space.
fdisk /dev/hda shows:
Disk /dev/hda: 60.0 GB, 60011642880 bytes
255 heads, 63 sectors/track, 7296 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/hda1 1 6 48163+ de Dell Utility
/dev/hda2 7 372 2939895 7 HPFS/NTFS
/dev/hda3 373 715 2755147+ db CP/M / CTOS / ...
/dev/hda4 716 7296 52861882+ 5 Extended
/dev/hda5 * 716 725 80293+ 83 Linux
/dev/hda6 726 1745 8193118+ 83 Linux
/dev/hda7 1746 1843 787153+ 82 Linux swap / Solaris
/dev/hda8 1844 5158 26627706 83 Linux
less /etc/fstab shows:
# This file is edited by fstab-sync - see 'man fstab-sync' for details
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
none /dev/pts devpts gid=5,mode=620 0 0
none /dev/shm tmpfs defaults 0 0
LABEL=/home /home ext3 defaults 1 2
none /proc proc defaults 0 0
none /sys sysfs defaults 0 0
LABEL=SWAP-hda7 swap swap defaults 0 0
less /proc/meminfo shows
MemTotal: 774344 kB
MemFree: 11500 kB
Buffers: 26664 kB
Cached: 255784 kB
SwapCached: 0 kB
Active: 381484 kB
Inactive: 166756 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 774344 kB
LowFree: 11500 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
Mapped: 324336 kB
Slab: 201824 kB
CommitLimit: 387172 kB
Committed_AS: 998888 kB
PageTables: 4052 kB
VmallocTotal: 245752 kB
VmallocUsed: 3332 kB
VmallocChunk: 242204 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 4096 kB
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