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2009 Sep 17
0
stat() performance on files on zfs vs. ufs
...p. This is of course a micro-benchmark. Additionally it doesn''t cover a case if doing stat() on not cached entries in DNLC has been improved too.
So I run the program several times on each build after a fresh restart. These were the numbers I was getting on average:
snv_117/ZFS# ptime ./stat_loop test 1000000
real 1.941163151
user 0.219955617
sys 1.707997800
snv_122/ZFS# ptime ./stat_loop test 1000000
real 1.089193770
user 0.199055005
sys 0.889680683
snv_122/UFS# ptime ./stat_loop test 1000000
real 0.905696133
user 0.187513753
s...