mps(4) driver (LSI 6Gb SAS) commited to stable/8

[Charles Sprickman]

On Sat, 19 Feb 2011, Dmitry Morozovsky wrote:

> On Fri, 18 Feb 2011, Kenneth D. Merry wrote:
>
> KDM> I just merged the mps(4) driver to stable/8, for those of you with LSI 6Gb
> KDM> SAS hardware.
>
> [snip]
>
> Again, thank you very much Ken.  I'm planning to stress test this on 846 case
> filled with 12 (yet) WD RE4 disks organized as raidz2, and will post the
> results.
>
> Any hints to particularly I/O stressing patterns?  Out of my mind, I'm planning
> multiple parallel -j'ed builds, parallel tars, *SQL benchmarks -- what else
> could you suppose?

benchmarks/iozone is nice, and you can get nifty graphs out of it.  It 
walks through various block sizes and is very long running.  It can 
probably tickle lots of stuff.  The results are also pretty informative - 
you can see very clearly in the graphs whatever your weak spots are.

http://www.iozone.org/

Charles

>
> -- 
> Sincerely,
> D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
> [ FreeBSD committer:                                 marck at FreeBSD.org ]
> ------------------------------------------------------------------------
> *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck at rinet.ru ***
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