The newfs man page says: -a maxcontig Specify the maximum number of contiguous blocks that will be laid out before forcing a rotational delay. The default value is 16. See tunefs(8) for more details on how to set this option.
Is this still a good idea with modern drives where the number of sectors per track varies, and no one but the manufacturer knows how many sectors a particular track has? [1] Skipping sectors could unnecessarily force a seek to the next track, thus hurting rather than helping performance. I have to wonder if FreeBSD even supports any hard drives that don't use zone bit recording? The tunefs man page does not mention this parameter. [1] http://en.wikipedia.org/wiki/Zone_bit_recording _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[email protected]"
