Messages in this thread | | | From | Grant Coady <> | Subject | Re: Why is 2.4.32 four times faster than 2.6.14.6?? | Date | Sun, 08 Jan 2006 22:18:03 +1100 |
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On Sun, 08 Jan 2006 11:23:37 +0100, be-news06@lina.inka.de (Bernd Eckenfels) wrote:
>Willy Tarreau <willy@w.ods.org> wrote: >> It's rather strange that 2.6 *eats* CPU apparently doing nothing ! > >it eats it in high interrupt load. And it is caused by the pty-ssh-tcp >output, so most likely those are eepro100 interrupts.
That would be true for either 2.4 or 2.6, no? Also it runs e100 driver, but...
2.4 dmesg: Intel(R) PRO/100 Network Driver - version 2.3.43-k1 Copyright (c) 2004 Intel Corporation
e100: selftest OK. e100: eth0: Intel(R) PRO/100 Network Connection Hardware receive checksums enabled cpu cycle saver enabled
2.6 dmesg: [ 31.977945] e100: Intel(R) PRO/100 Network Driver, 3.4.14-k2-NAPI [ 31.978007] e100: Copyright(c) 1999-2005 Intel Corporation [ 32.002928] e100: eth0: e100_probe: addr 0xfd201000, irq 11, MAC addr 00:90:27:42:AA:77 [ 32.026992] e100: eth1: e100_probe: addr 0xfd200000, irq 12, MAC addr 00:90:27:58:32:D4 [ 32.186941] e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex
Are rx checksums not turned on in 2.6' e100 driver? CPU is only pentium/mmx 233
-- Thanks, Grant. http://bugsplatter.mine.nu/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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