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tuned/profiles/openshift
Jiri Mencak 8b57a12efc Profile openshift: increase fs.aio-max-nr tunable
The kernel tunable fs.aio-max-nr specifies the maximum number of events
specified on the io_setup() call for all currently active aio contexts.
On large systems this causes issues with the io_setup() call failing
with EAGAIN.  Libvirt already increases this setting to 1048576:
96e99e4948/src/remote/libvirtd.sysctl

The only potential drawback of a larger limit is that a malicious users
could issue parallel io_setup() requests to cause the kernel to set
aside memory.

Signed-off-by: Jiri Mencak <jmencak@users.noreply.github.com>
2022-09-06 10:00:03 +02:00
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tuned.conf Profile openshift: increase fs.aio-max-nr tunable 2022-09-06 10:00:03 +02:00