System information

130 System Analysis and Tuning Guide
cd /sys/fs/cgroup/cpuset/cgroup
mkdir priority
cd priority
cat cpu.shares
2 Understanding cpu.shares:
• 1024 is the default (for more information, see /Documentation/sched
uler/sched-design-CFS.txt) = 50% utilization
• 1524 = 60% utilization
• 2048 = 67% utilization
• 512 = 40% utilization
3 Changing cpu.shares
echo 1024 > cpu.shares
10.5 For More Information
• Kernel documentation (package kernel-source): files in /usr/src/lin
ux/Documentation/cgroups:
• /usr/src/linux/Documentation/cgroups/blkio-
controller.txt
• /usr/src/linux/Documentation/cgroups/cgroups.txt
• /usr/src/linux/Documentation/cgroups/cpuacct.txt
• /usr/src/linux/Documentation/cgroups/cpusets.txt
• /usr/src/linux/Documentation/cgroups/devices.txt
• /usr/src/linux/Documentation/cgroups/freez
er-subsystem.txt
• /usr/src/linux/Documentation/cgroups/
memcg_test.txt
• /usr/src/linux/Documentation/cgroups/memory.txt