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energyman76b
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Joined: 26 Mar 2003
Posts: 2045
Location: Germany

PostPosted: Thu Jul 10, 2008 8:57 pm    Post subject: Reply with quote

dusanc wrote:
energyman76b wrote:
except he 'optimized' xfs some, reiserfs/reiser4 not at all and got extX away without barriers - while all other fs use barriers.

So the results are in favour of extX. You can reduce the performance of them by 30%.

Also, instead of the 'reiser4 was taken from mm' crap he should have used the correct reiser4 patch that you can find on kernel.org.

Well AFAIK the benchmark was done before reiser4.patch could be found on kernel.org
Other conclusions are true, but atleast it was documented :)
Btw. here's explanation on dbench reiser4 problems from Edward:
"I know about it: such hangs take place since 2.6.23-mm1 (or so):
I think that something got changed in the vm subsystem"
And about file creation results:
"I think this is because of poor reiser4_sync() performance: it does a
lot of work,
and that "creation" benchmark calls sync() for every created file, i.e.
100000 times.."
I hope this helps.

Dushan
PS. Is it just me or reiser4 made some good results in this "unfair" competition?


yes, it did - and with a fair competition, r4, r3 and xfs look even a lot better ;)
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nixnut
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PostPosted: Sat Aug 02, 2008 2:50 pm    Post subject: Reply with quote

continued here
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