libvirt/src/remote/libvirtd.sysctl
Daniel P. Berrangé 21ea3828f7 daemon: move misc libvirtd policy files to src/remote/
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-22 12:26:50 +00:00

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# The kernel allocates aio memory on demand, and this number limits the
# number of parallel aio requests; the only drawback of a larger limit is
# that a malicious guest could issue parallel requests to cause the kernel
# to set aside memory. Set this number at least as large as
# 128 * (number of virtual disks on the host)
# Libvirt uses a default of 1M requests to allow 8k disks, with at most
# 64M of kernel memory if all disks hit an aio request at the same time.
fs.aio-max-nr = 1048576