Dongsu Park 8881733152 sys-kernel/coreos-modules: enable PSI (Pressure Stall Information) ... Enable Kernel config for PSI (Pressure Stall Information), which might help system administrators to detect bottleneck in cpu, memory and io in an easy way. ``` $ zgrep -i _psi /proc/config.gz CONFIG_PSI=y $ ls -l /proc/pressure/ -r--r--r--. 1 root root 0 Oct 7 11:56 cpu -r--r--r--. 1 root root 0 Oct 7 11:56 io -r--r--r--. 1 root root 0 Oct 7 11:56 memory $ cat /proc/pressure/cpu some avg10=0.13 avg60=0.68 avg300=0.28 total=1195993 $ cat /proc/pressure/io some avg10=0.00 avg60=1.11 avg300=0.68 total=2828208 full avg10=0.00 avg60=0.91 avg300=0.56 total=2334731 $ cat /proc/pressure/memory some avg10=0.00 avg60=0.00 avg300=0.00 total=0 full avg10=0.00 avg60=0.00 avg300=0.00 total=0 ``` See also https://www.kernel.org/doc/html/latest/accounting/psi.html , https://facebookmicrosites.github.io/psi/docs/overview Fixes https://github.com/flatcar-linux/Flatcar/issues/162		2020-11-04 09:37:45 +01:00
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src/third_party/coreos-overlay	sys-kernel/coreos-modules: enable PSI (Pressure Stall Information)	2020-11-04 09:37:45 +01:00