cvs commit: src/sys/dev/amr amr.c amr_cam.c amr_disk.c
amr_pci.c amrio.h amrreg.h amrvar.h
Brian Fundakowski Feldman
green at FreeBSD.org
Fri Dec 16 00:07:07 PST 2005
On Fri, Dec 16, 2005 at 12:31:22AM -0700, Scott Long wrote:
> Joao Barros wrote:
> >On 12/14/05, Scott Long <scottl at freebsd.org> wrote:
> >>scottl 2005-12-14 03:26:49 UTC
> >> FreeBSD src repository
> >> Modified files:
> >> sys/dev/amr amr.c amr_cam.c amr_disk.c amr_pci.c
> >> amrio.h amrreg.h amrvar.h
> >> Log:
> >> Mega update to the LSI MegaRAID driver:
> >> Items 3 and 4 significantly increase the performance of the driver. On
> >> an
> >> LSI 320-2X card, transactions per second went from 13,000 to 31,000 in my
> >> testing with these changes. However, these changes are still fairly
> >> experimental and shouldn't be merged to 6.x until there is more testing.
> >A 238% improvement is at the very least impressive!
> Yeah, I was shocked at first too. The PCIe controllers can likely do
> even better than that, but my only PCIe test system had other hardware
> related instabilities, so I didn't do much testing with it.
> >Any specific testing in mind or just stability?
> I'm a bit worried that old controllers (especially ones that predate the
> move to i960 CPUs) might be broken with this. But yeah, stability
> testing is always welcome. It got beat up for about 2 weeks straight,
> so I'm pretty confident that it's solid.
Can you define "beat up" in any detail? Since I've been messing with
the GEOM RAID-3 driver recently, I've been looking for various stress
tests to gain confidence in changes I've made locally. Best I've had
going so far is some churn-and-burn on several PostgreSQL databases.
Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\
<> green at FreeBSD.org \ The Power to Serve! \
Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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