Re: [PLUG] Recent Linux file system benchmarks

[Lee Marzke <lee@marzke.net>]

Bhasker,

The btrfs results are disappointing if that's the performance will be 
expected in production.
ZFS/Fuse performance under Linux is also disappointing.

I'd be curious about performance of a NetApp filer ( which uses a 
propriatary WAFL
filesystem,  simliar to ZFS ) however it has extensive caching that is 
supposed to vastly
improve COW performance.    From what I understand caching writes in 
NVRAM is the secret
to good performance with COW filesystems.

Note that NetApps I've used ( FAS 2000 ) generally have 12 to 16 
spindles per Aggregate
SATA volume, so I'm not sure that's valid against your current 
benchmark.  But, still having
the advantages of using lots of snapshots without penalty, and still 
having a very fast SAN might be
worth the cost of a NetApp.  ( Plus you get RAID-6 equiv protection ,  
and with more
spindles, and perhaps better performance than your RAID-0 striped SATA 
disks )

Lee



On 10/18/2010 07:20 AM, K.S. Bhaskar wrote:
> We did some recent benchmarking of Linux file systems.  The report is
> posted online at
> http://tinco.pair.com/bhaskar/gtm/doc/misc/101005-1dthreeen1fFilesystemBenchmark.pdf
> and the slides can be found at
> http://tinco.pair.com/bhaskar/gtm/doc/misc/101009-1aFileSystemBenchmark.pdf
>
> Regards
> -- Bhaskar
>
>    


--
"Between subtle shading and the absence of light lies the nuance of iqlusion..."  - Kryptos

Lee Marzke,     lee@marzke.net                              http://marzke.net/lee/
IT Consultant, Global App Development, Sofware CM, VMware, VSphere, NetApp storage
voice: +1 484-961-0369     +1 800 393 5217                     sip://lee@4aero.com
fax:  +1 484-348-2230


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