Package: ulatencyd
Version: 0.5.0-5
Severity: normal
--- Please enter the report below this line. ---
Dear maintainer,
Default "desktop" scheduler sets blkio.weight = 1 for cgroups where it
moves "idle priority" processes (those tagged as daemon.idle/user.idle
in ulatencyd rules) and "poisonous" processes. This fails because
allowed range for blkio.weight values is 10-1000 (on kernel 3.2.0). The
range seems to be changing between kernel versions, used to be
100-1000 in past.
This renders poisonous and idle processes having no penalty on disk
usage. I.e. idle cgroup stays with blkio.weight=500 on my system,
unfortunately audio/video players and other processes are scheduled
with blkio.weight=300.
Other schedulers are trying to set incorrect value too:
$ grep -rn blkio\.weight.*\"1\" .
./scheduler/30-single-task.lua:191: param = { ["blkio.weight"]="1" },
./scheduler/20-desktop.lua:263: param = { ["blkio.weight"]="1" },
./scheduler/20-desktop.lua:288: param = { ["blkio.weight"]="1" },
./scheduler/30-game.lua:178: param = { ["blkio.weight"]="1" }
--- System information. ---
Architecture: amd64
Kernel: Linux 3.2.0-2-amd64
Debian Release: wheezy/sid
990 unstable www.deb-multimedia.org
990 unstable ftp.gajim.org
990 unstable ftp.cz.debian.org
990 testing security.debian.org
990 testing ftp.cz.debian.org
990 stable ftp.cz.debian.org
600 experimental ftp.cz.debian.org
500 testing www.deb-multimedia.org
500 stable www.deb-multimedia.org
500 stable deb.opera.com
--- Package information. ---
Depends (Version) | Installed
=====================================-+-============
libc6 (>= 2.7) | 2.13-33
libdbus-1-3 (>= 1.0.2) | 1.6.0-1
libdbus-glib-1-2 (>= 0.78) | 0.98-1
libglib2.0-0 (>= 2.22.0) | 2.32.3-1
liblua5.1-0 | 5.1.5-2
libpolkit-gobject-1-0 (>= 0.99) | 0.105-1
libxau6 | 1:1.0.7-1
libxcb1 | 1.8.1-1
dbus | 1.6.0-1
lua5.1 | 5.1.5-2
OR lua |
lua-posix | 5.1.19-2
Package's Recommends field is empty.
Package's Suggests field is empty.
--
S pozdravem,
Petr Gajdůšek
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