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linux: enable TASKSTATS, TASK_XACCT, TASK_DELAY_ACCT and TASK_IO_ACCOUNTING

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iotop needs TASKSTATS, TASK_DELAY_ACCT, TASK_XACCT and
TASK_IO_ACCOUNTING to work. For x86_64, all these options are enabled
by upstream[1]. For aarch64, however, only TASK_XACCT and
TASK_IO_ACCOUNTING are enabled by upstream[2].

This patch enables all these four options for aarch64, which have been
enabled by many other distributions, e.g. debian[3], fedora[4],
rhel[5] and gentoo[6].

I tried to only enable TASKSTATS and TASK_DELAY_ACCT since the other
two options are enabled by upstream, but it turns out that it's
necessary to explicitly enable all four options. I do not figure out
the reason though.

Additionally, given that debian enables these four options for all
arch[3], I think it's safe for us to do the same thing.

[1]: 56e337f2cf/arch/x86/configs/x86_64_defconfig (L8-L11)
[2]: 56e337f2cf/arch/arm64/configs/defconfig (L10-L11)
[3]: da6ddc7d8f/debian/config/config (L6356-6359)
[4]: https://src.fedoraproject.org/rpms/kernel/blob/rawhide/f/kernel-aarch64-fedora.config#_7398
[5]: https://src.fedoraproject.org/rpms/kernel/blob/rawhide/f/kernel-aarch64-rhel.config#_5885
[6]: b839fccce2/sys-kernel/gentoo-kernel/gentoo-kernel-5.15.29.ebuild (L27)
This commit is contained in:
linj 2022-03-17 17:45:40 +08:00
parent 3619ffaeb6
commit 8d7d5fdbdc
1 changed files with 5 additions and 0 deletions
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5
pkgs/os-specific/linux/kernel/common-config.nix
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@ -906,6 +906,11 @@ let
ANDROID_BINDER_IPC = { optional = true; tristate = whenAtLeast "5.0" "y";};
ANDROID_BINDERFS = { optional = true; tristate = whenAtLeast "5.0" "y";};
ANDROID_BINDER_DEVICES = { optional = true; freeform = whenAtLeast "5.0" "binder,hwbinder,vndbinder";};
TASKSTATS = yes;
TASK_DELAY_ACCT = yes;
TASK_XACCT = yes;
TASK_IO_ACCOUNTING = yes;
} // optionalAttrs (stdenv.hostPlatform.system == "x86_64-linux" || stdenv.hostPlatform.system == "aarch64-linux") {
# Enable CPU/memory hotplug support
# Allows you to dynamically add & remove CPUs/memory to a VM client running NixOS without requiring a reboot