Date: Fri, 18 Sep 2009 08:09:44 +0900 From: Norikatsu Shigemura <nork@FreeBSD.org> To: pyunyh@gmail.com Cc: Norikatsu Shigemura <nork@freebsd.org>, freebsd-usb@freebsd.org Subject: Re: CFT: axe(4) performance patch Message-ID: <20090918080944.23532c80.nork@FreeBSD.org> In-Reply-To: <20090917170849.GL1155@michelle.cdnetworks.com> References: <20090914193722.GD1155@michelle.cdnetworks.com> <20090918000657.099df7c4.nork@FreeBSD.org> <20090917170849.GL1155@michelle.cdnetworks.com>
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Hi pyun! On Thu, 17 Sep 2009 10:08:49 -0700 Pyun YongHyeon <pyunyh@gmail.com> wrote: > > patched: AX88178, AX88172, AX88772 <-> bge > > 60Mbps, 60Mbps, 25Mbps > > patched: AX88178, AX88172, AX88772 <-> rl > > 90Mbps, 60Mbps, 40Mbps > > old: AX88178, AX88172, AX88772 <-> bge > > 180Mbps, 90Mbps, 95Mbps > > old: AX88178, AX88172, AX88772 <-> re > > 180Mbps, 90Mbps, 95Mbps > I'm not sure I understood the test environment. > But it looks un-patched axe(4) performs better, right? Yes. I think that these are strange. > One odd thing is performance differences for AX88172. My patch does > not touch AX88172 controller but your benchmark shows big > differences for AX88172. Are you sure you didn't apply other > patches for axe(4)/USB stack? Ehh, I was wrong, there was a change No I don't apply any patch to axe/usb. > for AX88172. The bufsize was changed to 16KB from 2KB for AX88172, > that was not my intention. It seems new USB stack has no easy way > to configure this parameter in attach phase so I used 16KB. Would > you try changing the value to MCLBYTES(aorund line number 208 in > patched if_axe.c) and test it on AX88172? I'll try, please wait a while. > Also please let me know what netperf parameters were used in the > test. Simple-fully, it's all default. Server: netserver Client: netperf -H Server > > Ummmm, I'll try to update old(rl) machine to pached, and re-test. > > Thank you. > It seems you have all three variants that axe(4) supports, so would > you test "http://p4db.freebsd.org/chv.cgi?CH=168602"? Yes, too! Thank you.
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