Hi Darrick, On Wed, 11 Jan 2023 17:58:17 -0800, Darrick J. Wong wrote: > > (removexattr looks like a pain in perl though...) > > > > Anyway it's late now, I'll look at the diff tomorrow. > > ...or thursday now, since I decided to reply to the online fsck design > doc review comments, which took most of the workday. I managed to bang > out a python script (perl doesn't support setxattr!) that cut the xattr > overhead down to nearly zero. IIUC we currently only depend on python for the fio perf tests and btrfs/154 . My preference would be to not see it spread further (especially if it's just to shave off a little runtime), mostly because it's a pain for dependency tracking. Perhaps you could use perl's syscall(SYS_fsetxattr(), ...)? Well, that or rewrite it again in awk ;-P Cheers, David