On 11/11/13, 12:23 PM, Bernd Schubert wrote: > One of my colleagues benchmarked this on one of our fast systems and another > colleague current needs this system for other tests, so I don't have the > exact parameters. However, it was for sure formated with options like these: > > mkfs.xfs -d su=256k,sw=10 -l version=2,su=256k -isize=512 /dev/sdX > > and mounted with these options: > > mount -onoatime,nodiratime,largeio,inode64,swalloc,allocsize=131072k,nobarrier /dev/sdX <mountpoint> With all due respect, this is excessive knob-twiddling. Slow down. ;) * V2 logs are default already, so -l version=2 is redundant. * noatime implies nodiratime, so specifying both is redundant. * "largeio" only changes the st_blksize value reported (from default page size to, in your case, the total stripe width). Does that actually affect your application behavior? Backing up, what kernel & what userspace versions are you testing? -Eric _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
