Re: which process is accessing my hard drive?
On Mon, Mar 01, 2004 at 11:35:55AM -0500, Matt Price wrote:
>
> Hey folks,
>
> I'm trying to set my (aging) laptop up for maximum power
> efficiency. using hdparm, I set the spindown time very short, I don't
> use x, and I've gone so far as to shutdown things like cron and atd.
> Pretty much the only thing I have running is emacs (see the output of
> ps, attached). But somehow the hard drive keeps spinning back up
> spontaneously. Who's accessing my hard drive?? I don't have the
> slightest idea how to find out, or (even better) figure out how to
> stop it from happening.
>
> Can anyone help me with this?
>
You should look into laptop mode (what kernel are you using?,
2.4.23-pre5 or there abouts and up has it built in). If you have a
kernel that has laptop mode you can do echo 1 > /proc/sys/vm/block_dump
and it will print which processes access the disk.
Also, I am having a problem with emacs now that it keeps saving backups
every 30 seconds or so. Using flyspell in emacs will also keep
accessing the disk when it checks the dictionary for spelling.
> thx,
> matt
>
>
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Content-Description: output of ps
> USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
> root 1 0.0 0.4 1484 444 ? S 01:27 0:03 init
> root 2 0.0 0.0 0 0 ? SW 01:27 0:02 [keventd]
> root 3 0.0 0.0 0 0 ? SWN 01:27 0:00 [ksoftirqd_CPU0]
> root 4 0.0 0.0 0 0 ? SW 01:27 0:01 [kswapd]
> root 5 0.0 0.0 0 0 ? SW 01:27 0:00 [bdflush]
> root 6 0.0 0.0 0 0 ? TW 01:27 0:00 [kupdated]
> root 7 0.0 0.0 0 0 ? SW 01:27 0:01 [khubd]
> daemon 165 0.0 0.3 1600 304 ? S 01:27 0:00 /sbin/portmap
> root 254 0.0 0.6 2184 580 ? S 01:27 0:00 /sbin/syslogd
> root 257 0.0 0.5 2200 492 ? S 01:27 0:00 /sbin/klogd
> root 270 0.0 0.0 0 0 ? SW 01:27 0:00 [kapmd]
> root 272 0.0 0.5 1484 540 ? S 01:27 0:04 /usr/sbin/apmd -P /etc/apm/apmd_proxy --proxy-timeout 30
> root 297 0.0 0.4 2164 452 ? S 01:27 0:00 /usr/sbin/inetd
> root 335 0.0 0.5 1500 556 ? S 01:27 0:00 /sbin/cardmgr -C config-2.4
> root 362 0.0 0.5 3040 544 ? S 01:28 0:00 /usr/sbin/sshd
> root 374 0.0 0.7 4268 732 ? S 01:28 0:00 /usr/bin/X11/xfs -daemon
> root 438 0.0 0.6 4444 572 ? S 01:28 0:00 /usr/X11R6/bin/Xprt -ac -pn -nolisten tcp -audit 4 -fp /usr/X11R6/lib/X11/fonts/Type1,/usr/X11R6/lib/X11/fonts/TrueType,/usr/X11R6/lib/X11/fonts/100dpi,/usr/X11R6/lib/X11/fonts/75dpi,/usr/X11R6/lib/X11/fonts/misc :64
> root 450 0.0 0.5 2304 532 ? S 01:28 0:00 /sbin/rpc.statd
> root 454 0.0 0.5 1528 528 ? S 01:28 0:00 /usr/sbin/noflushd -n 5 /dev/hda
> matt 469 0.0 1.5 3436 1440 tty1 S 01:28 0:02 -bash
> root 470 0.0 1.4 3424 1404 tty2 S 01:28 0:01 -bash
> root 472 0.0 0.4 1480 404 tty4 S 01:28 0:00 /sbin/getty 38400 tty4
> root 473 0.0 0.4 1480 404 tty5 S 01:28 0:00 /sbin/getty 38400 tty5
> root 474 0.0 0.4 1480 404 tty6 S 01:28 0:00 /sbin/getty 38400 tty6
> matt 5749 0.0 1.9 3444 1788 tty3 S 03:29 0:00 -bash
> matt 6161 0.2 7.1 10784 6768 tty1 T 04:09 1:04 emacs Strassbourg.ll
> matt 7322 0.0 0.8 2848 824 tty1 R 11:31 0:00 ps aux
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