On (25/12/2010 20:29), Ivan Voras wrote: > On 23.12.2010 23:46, Gleb Kurtsou wrote: > > > For testing I've used dbench with 16 processes on 1 Gb swap back md > > device, UFS + SoftUpdates: > > Old hash (Mb/s): 599.94 600.096 599.536 > > SFH hash (Mb/s): 612.439 612.341 609.673 > > > > It's just ~1% improvement, but dbench is not a VFS metadata intensive > > benchmark. Subjectively it feels faster accessing maildir mailboxes > > with ~10.000 messages : ) > > Try blogbench if you need metadata-intensive operations, or even fsx. blogbench should be good, but I've always had hard time interpreting its results. Besides results tend to very a lot, there is no way to set seed value like in fsx, so that I could run exactly the same test in different configurations. I prefer to use blogbench for stability testing.
fsx is a different beast, it reads/writes/truncates at random offsets - great tool for debugging mmap/truncate issues. Patch doesn't improve it in any way. > > _______________________________________________ > [email protected] mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "[email protected]" _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[email protected]"
