38 lines
973 B
Nix
38 lines
973 B
Nix
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{ lib, ... }:
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{
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name = "sysfs";
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meta.maintainers = with lib.maintainers; [ mvs ];
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nodes.machine = {
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boot.kernel.sysfs = {
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kernel.mm.transparent_hugepage = {
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enabled = "always";
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defrag = "defer";
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shmem_enabled = "within_size";
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};
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block."*".queue.scheduler = "none";
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};
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};
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testScript =
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{ nodes, ... }:
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let
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inherit (nodes.machine.boot.kernel) sysfs;
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in
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''
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from shlex import quote
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def check(filename, contents):
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machine.succeed('grep -F -q {} {}'.format(quote(contents), quote(filename)))
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check('/sys/kernel/mm/transparent_hugepage/enabled',
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'[${sysfs.kernel.mm.transparent_hugepage.enabled}]')
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check('/sys/kernel/mm/transparent_hugepage/defrag',
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'[${sysfs.kernel.mm.transparent_hugepage.defrag}]')
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check('/sys/kernel/mm/transparent_hugepage/shmem_enabled',
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'[${sysfs.kernel.mm.transparent_hugepage.shmem_enabled}]')
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'';
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}
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