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> Ouch, that does indeed sounds quite slow, especially considering that
> a dual core Athlon 6400 is pretty fast CPU. Have you done any
> comparison benchmarks between UFS2 with Softupdates and ZFS on the
Not at all - but, now you have got me curious, I just went to
a completely different system (four core opteron box, no ecnryption,
four 15k SCSI drives and a zpool of 2 mirrored pairs), and that
also gave me about 25 meg/second!
I am using the wildly unscientific "how long to copy a file"
method to benchmark here, with the file residing on a different
drive, which can provided it at 80 meg/second.
> same system? What are the read/write numbers like? Have you done any
> investigating regarding possible causes of ZFS working so slow on your
> system? Just wondering if its an ATA chipset problem, a drive problem,
> a ZFS problem or what...
I have no idea, and now I think I need to look into it! certainly
I should be getting better than 25 meg/sec out of the 15K SCSI's.
-pete.
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> a dual core Athlon 6400 is pretty fast CPU. Have you done any
> comparison benchmarks between UFS2 with Softupdates and ZFS on the
Not at all - but, now you have got me curious, I just went to
a completely different system (four core opteron box, no ecnryption,
four 15k SCSI drives and a zpool of 2 mirrored pairs), and that
also gave me about 25 meg/second!
I am using the wildly unscientific "how long to copy a file"
method to benchmark here, with the file residing on a different
drive, which can provided it at 80 meg/second.
> same system? What are the read/write numbers like? Have you done any
> investigating regarding possible causes of ZFS working so slow on your
> system? Just wondering if its an ATA chipset problem, a drive problem,
> a ZFS problem or what...
I have no idea, and now I think I need to look into it! certainly
I should be getting better than 25 meg/sec out of the 15K SCSI's.
-pete.
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
Conversations: ZFS on top of GELI / Intel Atom 330 system
- ZFS on top of GELI / Intel Atom 330 system by Dan Naumov on 2009-05-29T08:44:51+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Pete French on 2009-05-29T09:10:56+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Dan Naumov on 2009-05-29T09:19:01+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Philipp Wuensche on 2009-05-29T09:31:58+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Pete French on 2009-05-29T09:41:36+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Dan Naumov on 2009-05-29T10:13:25+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Morgan Wesström on 2009-05-29T11:11:54+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Dan Naumov on 2009-05-29T11:36:47+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Emil Mikulic on 2009-05-29T11:45:33+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Ivan Voras on 2009-05-29T11:50:26+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Vlad Galu on 2009-05-29T12:01:10+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Emil Mikulic on 2009-05-29T12:06:01+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Dan Naumov on 2009-05-29T12:13:42+00:00
- Re: ZFS on top of GELI / Intel Atom 330 system by Chris Dillon on 2009-05-30T01:17:05+00:00
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