Excerpts from Philipp Überbacher's message of 2011-09-01 21:03:47 +0200:
Excerpts from Dan McGee's message of 2011-09-01 20:41:27 +0200:
Excerpts from Dan McGee's message of 2011-09-01 19:54:34 +0200: free -m total used free shared buffers cached Mem: 2002 1080 922 0 17 299 -/+ buffers/cache: 763 1239 Swap: 2055 98 1956 Wow- what are you running on a laptop that is keeping 763 MB of RAM
On Thu, Sep 1, 2011 at 1:22 PM, Philipp Überbacher <hollunder@lavabit.com> wrote: pegged? Although there appears to be something else in play here.
At least half of that is due to firefox, a music player with a lot of songs in the playlist (aqualung), smplayer and the mail client (sup) should account for most of the rest.
hdparm -Tt /dev/sda
/dev/sda: Timing cached reads: 1426 MB in 2.00 seconds = 712.73 MB/sec Timing buffered disk reads: 166 MB in 3.01 seconds = 55.09 MB/sec This is a bit slow, but nothing that should impact your performance that much.
echo 3 > /proc/sys/vm/drop_caches; time pacman -Qs foobarbaz; time pacman -Qs foobarbaz
real 1m45.235s user 0m0.127s sys 0m0.590s
real 0m0.097s user 0m0.043s sys 0m0.023s Can you repeat this and use /usr/bin/time instead of just plain "time"? You may have to install the "time" package.
Ah, yes, that was necessary for /usr/bin/time to work.
echo 3 > /proc/sys/vm/drop_caches; /usr/bin/time pacman -Qs foobarbaz; /usr/bin/time pacman -Qs foobarbaz
echo 3 > /proc/sys/vm/drop_caches; /usr/bin/time pacman -Qs foobarbaz; /usr/bin/time pacman -Qs foobarbaz Command exited with non-zero status 1 0.08user 0.62system 0:48.48elapsed 1%CPU (0avgtext+0avgdata 3428maxresident)k 173016inputs+0outputs (16major+2353minor)pagefaults 0swaps Command exited with non-zero status 1 0.02user 0.03system 0:00.08elapsed 78%CPU (0avgtext+0avgdata 3428maxresident)k 0inputs+0outputs (0major+2369minor)pagefaults 0swaps
echo 3 > /proc/sys/vm/drop_caches; /usr/bin/time pacman -Ss foobarbaz; /usr/bin/time pacman -Ss foobarbaz Command exited with non-zero status 1 0.19user 0.03system 0:01.51elapsed 14%CPU (0avgtext+0avgdata 8440maxresident)k 9864inputs+0outputs (16major+2177minor)pagefaults 0swaps Command exited with non-zero status 1 0.19user 0.01system 0:00.27elapsed 76%CPU (0avgtext+0avgdata 8444maxresident)k 0inputs+0outputs (0major+2194minor)pagefaults 0swaps
Once you do that (but please get the numbers first!), try running `pacman-optimize` then rerunning the above test.
echo 3 > /proc/sys/vm/drop_caches; /usr/bin/time pacman -Qs foobarbaz; /usr/bin/time pacman -Qs foobarbaz Command exited with non-zero status 1 0.07user 0.46system 0:30.68elapsed 1%CPU (0avgtext+0avgdata 3428maxresident)k 31752inputs+0outputs (16major+2353minor)pagefaults 0swaps Command exited with non-zero status 1 0.02user 0.04system 0:00.09elapsed 74%CPU (0avgtext+0avgdata 3428maxresident)k 0inputs+0outputs (0major+2369minor)pagefaults 0swaps
echo 3 > /proc/sys/vm/drop_caches; /usr/bin/time pacman -Ss foobarbaz; /usr/bin/time pacman -Ss foobarbaz Command exited with non-zero status 1 0.19user 0.02system 0:01.57elapsed 14%CPU (0avgtext+0avgdata 8440maxresident)k 8832inputs+0outputs (16major+2178minor)pagefaults 0swaps Command exited with non-zero status 1 0.20user 0.00system 0:00.26elapsed 80%CPU (0avgtext+0avgdata 8440maxresident)k 0inputs+0outputs (0major+2193minor)pagefaults 0swaps
Finally, what is the output of df -h for whatever drive /var/lib is on? Is it near capacity? And what filesystem with what mount options?
from df -h /dev/disk/by-uuid/456aa338-0417-43ca-85b2-a03d1b36ec1e ext4 21G 13G 6.2G 68% /
from mtab /dev/disk/by-uuid/456aa338-0417-43ca-85b2-a03d1b36ec1e / ext4 rw,noatime,user_xattr,acl,barrier=1,nodelalloc,data=ordered 0 0
echo 3 > /proc/sys/vm/drop_caches; time pacman -Ss foobarbaz; time pacman -Ss foobarbaz
real 0m1.299s user 0m0.200s sys 0m0.023s
real 0m0.252s user 0m0.200s sys 0m0.010s
At least this one is OK.
-Dan
Ok, thanks a lot Dan and everyone else.
Regards, Philipp
So what do you guys think, is it simply the combination of slow HD and many packages or is there something wrong with my system that could be fixed by changing some config? Regards, Philipp