Messages in this thread |  | | Subject | Re: File System Performance | Date | Mon, 12 Nov 2001 22:39:17 +0000 (GMT) | From | Alan Cox <> |
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> Corrections to speed-up the sizeing pass in Amanda: > * tar.h: Declare dev_null_output. > * buffer.c (open_archive): Detect when archive is /dev/null. > (flush_write): Avoid writing to /dev/null. > * create.c (dump_file): Do not open file if archive is being > written to /dev/null, nor read file nor restore times. > Reported by Greg Maples and Tor Lillqvist. > > One wonders why.
So when you archive the file set twice (once to compute its size) its faster. Seems sane enough. - 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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