Date: Fri, 16 Dec 2005 00:31:22 -0700 From: Scott Long <scottl@samsco.org> To: Joao Barros <joao.barros@gmail.com> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/amr amr.c amr_cam.c amr_disk.c amr_pci.c amrio.h amrreg.h amrvar.h Message-ID: <43A26D4A.9080403@samsco.org> In-Reply-To: <70e8236f0512151455g1231cb7oa74aa7d54cfd5b18@mail.gmail.com> References: <200512140326.jBE3QnUT010666@repoman.freebsd.org> <70e8236f0512151455g1231cb7oa74aa7d54cfd5b18@mail.gmail.com>
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Joao Barros wrote: > On 12/14/05, Scott Long <scottl@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. Scott
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