Messages in this thread | | | Date | Sun, 8 Jan 2006 13:04:22 +0100 (MET) | From | Jan Engelhardt <> | Subject | Re: Why is 2.4.32 four times faster than 2.6.14.6?? |
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>grant@deltree:~$ time grep -v 192\.168\. /var/log/apache/access_log |cut -c-96 > >real 0m1.671s >user 0m0.550s >sys 0m0.300s >grant@deltree:~$ time grep -v 192\.168\. /var/log/apache/access_log |cut -c-96 >/dev/null > >real 0m0.510s >user 0m0.420s >sys 0m0.080s
Given that the first command is the first one accessing access_log at all, then: the second time, access_log is already cached and therefore can be accessed faster.
Jan Engelhardt -- | Alphagate Systems, http://alphagate.hopto.org/ | jengelh's site, http://jengelh.hopto.org/ - 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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