clearlinux/systemd-stable
2
0
Fork 0
mirror of https://github.com/clearlinux/systemd-stable.git synced 2026-10-03 23:38:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

exec: allow passing arbitrary path names to blkio cgroup attributes

Browse Source 
If a device node is specified, then adjust the bandwidth/weight of it,
otherwise find the backing block device of the file system the path
refers to and adjust its bandwidth/weight.
This commit is contained in:
Lennart Poettering
2011-08-21 20:07:45 +02:00
parent 9e37286844
commit 94959f0fa0
4 changed files with 103 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
man/systemd.exec.xml
+24 -14
View File
@@ -859,10 +859,15 @@
processes. Takes either a single
weight value (between 10 and 1000) to
set the default block IO weight, or a
space separated pair of a device node
path and a weight value to specify the
space separated pair of a file path
and a weight value to specify the
device specific weight value (Example:
"/dev/sda 500"). This controls the
"/dev/sda 500"). The file path may be
specified as path to a block device
node or as any other file in which
case the backing block device of the
file system of the file is
determined. This controls the
<literal>blkio.weight</literal> and
<literal>blkio.weight_device</literal>
control group attributes, which
@@ -879,17 +884,22 @@
<term><varname>BlockIOWriteBandwidth=</varname></term>
<listitem><para>Set the per-device
overall block IO bandwith limit for the
executed processes. Takes a space
separated pair of a device node path
and a bandwith value (in bytes per
second) to specify the device specific
bandwidth. If the bandwith is suffixed
with K, M, G, or T the specified
bandwith is parsed as Kilobytes,
Megabytes, Gigabytes, resp. Terabytes
(Example: "/dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0 5M"). This
controls the
overall block IO bandwith limit for
the executed processes. Takes a space
separated pair of a file path and a
bandwith value (in bytes per second)
to specify the device specific
bandwidth. The file path may be
specified as path to a block device
node or as any other file in which
case the backing block device of the
file system of the file is determined.
If the bandwith is suffixed with K, M,
G, or T the specified bandwith is
parsed as Kilobytes, Megabytes,
Gigabytes, resp. Terabytes (Example:
"/dev/disk/by-path/pci-0000:00:1f.2-scsi-0:0:0:0
5M"). This controls the
<literal>blkio.read_bps_device</literal>
and
<literal>blkio.write_bps_device</literal>