Date: Mon, 03 Sep 2012 16:23:56 +0700 From: Eugene Grosbein <egrosbein@rdtc.ru> To: pyunyh@gmail.com Cc: freebsd-net@freebsd.org, Lev Serebryakov <lev@freebsd.org>, Ian Smith <smithi@nimnet.asn.au> Subject: Re: vr(4) troubles for AMD Geode CS5536 chipset Message-ID: <5044772C.8090302@rdtc.ru> In-Reply-To: <20120903214333.GC3730@michelle.cdnetworks.com> References: <1865271844.20120829131610@serebryakov.spb.ru> <CAHu1Y70MynCMQTrJUMwTZ0%2BLrM1JiZFt_B77028XHfoiRgzmaA@mail.gmail.com> <1807373989.20120829223125@serebryakov.spb.ru> <20120830152726.A33776@sola.nimnet.asn.au> <534292400.20120830131158@serebryakov.spb.ru> <20120831180721.GB3208@michelle.cdnetworks.com> <50404F91.8080302@rdtc.ru> <20120903184049.GB3730@michelle.cdnetworks.com> <50443888.9080400@rdtc.ru> <20120903214333.GC3730@michelle.cdnetworks.com>
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04.09.2012 04:43, YongHyeon PYUN пишет: >> None. I've read its source and learned it prints its debug >> to the kernel dmesg buffer with sysctl dev.vr.1.stats=1 >> and done that before, during and after noted failure - >> all counters are zero except of good frames conters (in/out). > > Ok, it seems you didn't encounter TX/RX MAC shutdown/restart > related issues. To get more verbose debugging messages, you have > to define VR_SHOW_ERRORS in if_vr.c. I'll try this evening. > BTW, I see really poor bulk TCP performance on vr(4) with CURRENT > (< 12 Mbps). :-( > This is a quad-port VT6105 with Core2 Duo E6550. Pre-r235334 > restores the old good performance for me(> 86Mbps). However I can't > explain how taskq change shows this huge difference. Have you tried to remove options PREEMPTING from the kernel for newest driver? That helped me a lot - performance of new driver returned to the level of old one. Eugene Grosbein
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