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kernel: enable pressure interface

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PSI provides a canonical way to see resource pressure increases as
they develop, with pressure metrics for three major resources:
memory, CPU, and IO. PSI stats are like barometers that provide
fair warning of impending resource shortages, enabling users to
take more proactive, granular, and nuanced steps when resources
start becoming scarce.

References:
* https://www.kernel.org/doc/html/latest/accounting/psi.html
* https://lwn.net/Articles/759781/

Build system: x86/64
Build-tested: x86/64/AMD Cezanne, flogic/glinet_gl-mt6000
Run-tested: x86/64/AMD Cezanne, flogic/glinet_gl-mt6000

Signed-off-by: John Audia <therealgraysky@proton.me>
Link: https://github.com/openwrt/openwrt/pull/13819
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit eed39d45c2)
Link: https://github.com/openwrt/openwrt/pull/17097
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This commit is contained in:
John Audia
2023-10-29 04:32:21 -04:00
committed by Petr Štetiar
parent c312295b56
commit 9e73f794ad
2 changed files with 20 additions and 0 deletions
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target/linux/generic/config-6.6
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@@ -4758,6 +4758,7 @@ CONFIG_PROC_SYSCTL=y
# CONFIG_PSB6970_PHY is not set
# CONFIG_PSE_CONTROLLER is not set
# CONFIG_PSI is not set
# CONFIG_PSI_DEFAULT_DISABLED is not set
# CONFIG_PSTORE is not set
# CONFIG_PSTORE_BLK is not set
# CONFIG_PSTORE_COMPRESS is not set