Activity log for bug #2021571

Date Who What changed Old value New value Message
2023-05-30 08:00:25 norman shen bug added bug
2023-05-30 08:01:09 norman shen description Issue: ```console # time cat /sys/fs/cgroup/blkio/blkio.time_recursive 8:16 354721435 real 0m1.297s user 0m0.000s sys 0m1.297s ``` As could be seen from above result, cat blkio took about 1 second to complete which is much longer than a normal case. Kernel Version: Linux compute08 4.15.0-72-generic #81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Issue: ```console # time cat /sys/fs/cgroup/blkio/blkio.time_recursive 8:16 354721435 real 0m1.297s user 0m0.000s sys 0m1.297s ``` As could be seen from above result, cat blkio took about 1 second to complete which is much longer than a normal case. Kernel Version: Linux compute08 4.15.0-72-generic #81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux Would be appreciated to know any operations to identify the issue, Thank you very much for the help.
2023-09-12 15:02:26 Launchpad Janitor linux-meta (Ubuntu): status New Confirmed
2023-09-13 18:09:38 Kevin Brierly attachment added flame2.html https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/2021571/+attachment/5700645/+files/flame2.html
2023-09-13 21:04:18 Kevin Brierly bug added subscriber Kevin Brierly