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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]: https://github.com/torvalds/linux/blob/56e337f2cf1326323844927a04e9dbce9a244835/arch/x86/configs/x86_64_defconfig#L8-L11
[2]: https://github.com/torvalds/linux/blob/56e337f2cf1326323844927a04e9dbce9a244835/arch/arm64/configs/defconfig#L10-L11
[3]: https://salsa.debian.org/kernel-team/linux/-/blob/da6ddc7d8f1a95980d9a1c499fe58066cfe1986b/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]: https://github.com/gentoo/gentoo/blob/b839fccce25d49df2fcfe5ed184b557796b0d6bd/sys-kernel/gentoo-kernel/gentoo-kernel-5.15.29.ebuild#L27
This commit is contained in:
linj
2022-03-17 21:45:56 +08:00
parent 3619ffaeb6
commit 8d7d5fdbdc
1 changed files with 5 additions and 0 deletions
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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