Date: Sun, 3 Jan 2010 17:38:06 +0100 From: =?iso-8859-1?Q?Michael_T=FCxen?= <Michael.Tuexen@lurchi.franken.de> To: Mike Tancsa <mike@sentex.net> Cc: Barney Cordoba <barney_cordoba@yahoo.com>, jfvogel@gmail.com, freebsd-net@freebsd.org Subject: Re: igb interrupt moderation Message-ID: <1ABE4BCD-135C-44E0-80D8-52DFAE17B3D3@lurchi.franken.de> In-Reply-To: <201001031623.o03GN79u053239@lava.sentex.ca> References: <969646.48748.qm@web63905.mail.re1.yahoo.com> <B91C36D0-4D52-485D-A1A7-1477705E758E@lurchi.franken.de> <201001031428.o03ESWf2052691@lava.sentex.ca> <715F260A-A537-475E-BDFA-D2B566840500@lurchi.franken.de> <201001031623.o03GN79u053239@lava.sentex.ca>
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On Jan 3, 2010, at 5:23 PM, Mike Tancsa wrote: > At 11:13 AM 1/3/2010, Michael T=FCxen wrote: >> > >> > Just a separate datapoint about this driver, unless I apply >> > >> > http://people.freebsd.org/~yongari/igb/igb.buf.patch6 >> > >> > the driver is not really usable for me in RELENG_8 on the dual port = version of the card >> Could you elaborate on what you mean by "not really usable"? >=20 >=20 > Hi, > Some link state issues (getting confused about what port is = up), problems at high packet rates. I dont have this card in = production, but in my test environment it was much more stable on = RELENG_8 with the above patch in that I was not able to wedge the box. = pps rates were pretty ok on a low end i7 as well. Thanks for the information. I'll give it a try. I have a problem when I = flood a system with SCTP INITs. The system under attack becomes completely = unresponsive on the console. However, it continues to send INIT-ACKs back. After the = last commit from Jack it recovers after the attack. Not yet sure what is = going on. Using the em driver does not have the problem. However, when using the = em driver only one core is fully used, when using the igb driver both cores = are fully used. Unfortunately I do not have a more than dual core machine = available for this testing... Best regards Michael >=20 > ---Mike >=20 >=20 > -------------------------------------------------------------------- > Mike Tancsa, tel +1 519 651 3400 > Sentex Communications, mike@sentex.net > Providing Internet since 1994 www.sentex.net > Cambridge, Ontario Canada www.sentex.net/mike >=20 >=20
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