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Date: Fri, 11 Sep 2009 16:29:36 +0200 (CEST) From: Jesper Dangaard Brouer <hawk@...u.dk> To: robert@...julf.net Cc: Stephen Hemminger <shemminger@...tta.com>, David Miller <davem@...emloft.net>, Robert Olsson <robert.olsson@....uu.se>, netdev <netdev@...r.kernel.org>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [PATCH 00/14] pktgen update for net-next (2.6.32) On Wed, 9 Sep 2009, Jesper Dangaard Brouer wrote: > On Tue, 8 Sep 2009, robert@...julf.net wrote: > >> > With patches: >> > ------------- >> > tx_pkt_sz: 64 TX-pps: 9426724 >> >> Impressive. 82599 seems fast. Didn't you report even higher number >> with other CPU's? > > Yes, the Core i7 is even faster... but currently I'm not using it as a > generator, its the router in my current setup. > > Once I have finished my slides and last tests for LinuxCon. I'll run some > pktgen tests with the Core i7 and post the results. Here are some quick test results: One thing I noticed during the tests, is that using the machine during the tests gets very sluggy with the pktgen patches applied. Another thing/bug that sometimes happens is that pktgen stops working and the ixgbe driver "says": [ 231.195624] pktgen 2.72: Packet Generator for packet performance testing. [ 233.065639] ixgbe 0000:07:00.1: master disable timed out [ 234.677107] ixgbe 0000:07:00.1: master disable timed out [ 236.284576] ixgbe 0000:07:00.1: master disable timed out [ 237.892045] ixgbe 0000:07:00.1: master disable timed out The tests, I did complete, gave the following results: Core i7-920 (with DDR3 at 1600Mhz) ---------------------------------- Without patches (2.6.31-rc2): tx_pkt_sz: 64 TX-Mbps: 5704.29 TX-pps: 11141193 tx_pkt_sz: 128 TX-Mbps: 8415.27 TX-pps: 8218035 tx_pkt_sz: 256 TX-Mbps: 9146.23 TX-pps: 4465932 With the pktgen patches (2.6.31-rc5): tx_pkt_sz: 64 TX-Mbps: 5763.64 TX-pps: 11257313 tx_pkt_sz: 128 TX-Mbps: 8414.91 TX-pps: 8217709 tx_pkt_sz: 256 TX-Mbps: 9141.70 TX-pps: 4463720 Cheers, Jesper Brouer -- ------------------------------------------------------------------- MSc. Master of Computer Science Dept. of Computer Science, University of Copenhagen Author of http://www.adsl-optimizer.dk ------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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