[Kernel-packages] [Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

Thanks Matt. I have it installed on one machine so far and looks good (in the past 10 minutes). fstrim of a ~30 TB RAID 10 took 73 seconds instead of multiple hours. # uname -a Linux xxx 5.4.0-75-generic #84-Ubuntu SMP Fri May 28 16:28:37 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux # df -h

[Kernel-packages] [Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

I have it running on two machines now that needed big RAID 10s: # uname -rv 5.4.0-72-generic #80+TEST1896578v20210504b1-Ubuntu SMP Tue May 4 00:30:36 UTC 202 # df -h /opt/raid Filesystem Size Used Avail Use% Mounted on /dev/md0 30T 208G 29T 1% /opt/raid # cat /proc/mdstat

[Kernel-packages] [Bug 1896578] Re: raid10: Block discard is very slow, causing severe delays for mkfs and fstrim operations

Is there any ETA on a supported kernel with this patch? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1896578 Title: raid10: Block discard is very slow, causing severe delays for mkfs