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Message-ID: <alpine.DEB.1.00.0803281925500.5286@penti.org> Date: Fri, 28 Mar 2008 19:31:01 +0200 (EET) From: Harald Hannelius <harald@....fi> To: Michael Chan <mchan@...adcom.com> cc: David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org, netdev <netdev@...r.kernel.org> Subject: Re: tg3 bad performance, lots of hardware interrupts On Fri, 28 Mar 2008, Michael Chan wrote: > On Fri, 2008-03-28 at 15:04 +0200, Harald Hannelius wrote: >> Phew, I thought that running ethtool -t was like doing stop-A-sync on >> a >> Sun. It took almost half an hour to run that ethtool -t command; > > Something is very wrong. ethtool -t should only take a few seconds to > complete. You can try ethtool -t eth0 online to reduce the number of > tests to see if it makes a difference. Here's the output of ethtool -t eth2: The test result is PASS The test extra info: nvram test (online) 0 link test (online) 0 register test (offline) 0 memory test (offline) 0 loopback test (offline) 0 interrupt test (offline) 0 I just started a 'ethtool -t eth2 online' and that one took just some 10 seconds or so. # ethtool -t eth2 online 2>&1 | tee ethtool-output.log The test result is PASS The test extra info: nvram test (online) 0 link test (online) 0 register test (offline) 0 memory test (offline) 0 loopback test (offline) 0 interrupt test (offline) 0 # mpstat 2 2>&1 | tee ethtool2.log Linux 2.6.24.4 (mauer) 03/28/2008 05:22:42 PM CPU %user %nice %sys %iowait %irq %soft %steal %idle intr/s 05:22:44 PM all 0.00 0.00 0.00 0.00 11.63 7.56 0.00 80.81 102.99 05:22:46 PM all 0.00 0.00 0.27 0.00 8.33 4.84 0.00 86.56 123.00 05:22:48 PM all 0.00 0.00 0.00 0.00 12.03 7.16 0.00 80.80 108.46 05:22:50 PM all 0.00 0.00 0.00 0.00 10.47 5.23 0.00 84.30 113.93 05:22:52 PM all 0.00 0.00 0.00 0.00 12.93 10.06 0.00 77.01 135.00 05:22:55 PM all 0.00 0.00 18.11 0.00 24.25 12.62 0.00 45.02 158.28 05:22:57 PM all 0.00 0.00 0.82 0.00 13.11 10.38 0.00 75.68 146.04 05:22:59 PM all 0.00 0.00 0.29 0.00 18.77 12.61 0.00 68.33 136.32 05:23:01 PM all 0.00 0.00 0.00 0.00 13.64 7.67 0.00 78.69 112.50 05:23:03 PM all 0.00 0.00 0.00 0.00 9.19 4.86 0.00 85.95 110.50 05:23:05 PM all 0.00 0.00 0.00 0.00 13.64 7.67 0.00 78.69 108.00 > How many of these NICs do you have? If you have more than one, do they > all behave the same way? Have they ever worked well before? It's a brand spanking new computer, equipped with three of these BCM5751 NICs made by HP. I have ripped out all but one, and I have also tested the NIC in all three available PCIe slots. Same result. When all three NIC's where plugged in they didn't work. All three behave the same one-by-one. I don't know if they have worked before. -- A: Top Posters! | s/y Charlotta | Q: What is the most annoying thing on mailing lists? | FIN-2674 | http://www.fe83.org/ Finn Express Purjehtijat ry | ============= | Harald H Hannelius | harald (At) iki (dot) fi | GSM +358 50 594 1020 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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