Date: Fri, 29 Jul 2011 20:32:27 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/cam/ata ata_da.c Message-ID: <201107292032.p6TKWZ77090917@repoman.freebsd.org>
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mav 2011-07-29 20:32:27 UTC
FreeBSD src repository
Modified files:
sys/cam/ata ata_da.c
Log:
SVN rev 224497 on 2011-07-29 20:32:27Z by mav
Add control for ATA disk read-ahead, alike to the previously added write
cache control. Some controller BIOS'es tend to disable read-ahead, that
dramatically reduces read performance. Previously ata(4) always enabled
read-ahead unconditionally.
Approved by: re (kib)
Revision Changes Path
1.37 +102 -11 src/sys/cam/ata/ata_da.c
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