Date: Mon, 2 Jul 2007 22:58:07 -0400 From: Mikhail Teterin <mi+kde@aldan.algebra.com> To: sos@FreeBSD.org Cc: hardware@FreeBSD.org Subject: Any NCQ patches for SATA?.. Message-ID: <200707022258.08118@aldan>
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Hi, Soren! You may remember my past complaints about the poor write performance of my SATA drive. Various things were suggested -- including replacing the cable, and the drive. Well, today I added another, even bigger SATA drive to my setup and writing to it still maxes out at about 9MB/sec. Both drives support NCQ, which the ata(4) still does not support... ata4-master: pio=PIO4 wdma=WDMA2 udma=UDMA133 cable=40 wire ad8: 476940MB <HDS725050KLA360 K2AOA11A> at ata4-master SATA150 ad8: 976773168 sectors [969021C/16H/63S] 16 sectors/interrupt 1 depth queue ata5-master: pio=PIO4 wdma=WDMA2 udma=UDMA133 cable=40 wire ad10: 715404MB <Seagate ST3750640AS 3.AAE> at ata5-master SATA150 ad10: 1465149168 sectors [1453521C/16H/63S] 16 sectors/interrupt 1 depth queue I was wondering, if you have any experimental NCQ-patches. Before I place valuable data on the new drive, I'd be happy to give those a try... Thanks! Yours, -mi
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