ограничить процессы подмножествами процессоров и узлов памяти (confine processes to processor and memory node subsets)
Предупреждение (Warning)
Enabling memory_pressure
By default, the per-cpuset file cpuset.memory_pressure always
contains zero (0). Unless this feature is enabled by writing "1"
to the pseudo-file /dev/cpuset/cpuset.memory_pressure_enabled,
the kernel does not compute per-cpuset memory_pressure.
Using the echo command
When using the echo
command at the shell prompt to change the
values of cpuset files, beware that the built-in echo
command in
some shells does not display an error message if the write(2)
system call fails. For example, if the command:
echo 19 > cpuset.mems
failed because memory node 19 was not allowed (perhaps the
current system does not have a memory node 19), then the echo
command might not display any error. It is better to use the
/bin/echo
external command to change cpuset file settings, as
this command will display write(2) errors, as in the example:
/bin/echo 19 > cpuset.mems
/bin/echo: write error: Invalid argument