On Sat, 08 Dec 2012 19:52:34 -0800 "Ronald F. Guilmette" <[email protected]> wrote:
"analysis" skipped. > > As regards to the Native Command Queuing.... all I can say is "Crap!" > I wasn't aware...until now... that FreeBSD did not support that. That > really is a rather entirely serious issue. But I do think that the > performance hit from that would be dwarfed by the performance hit that > could be caused by the AF misaligment problem. > ada0 at ahcich1 bus 0 scbus2 target 0 lun 0 ada0: <ST3750330AS SD1A> ATA-8 SATA 2.x device ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada0: Command Queueing enabled ada0: 715404MB (1465149168 512 byte sectors: 16H 63S/T 16383C) ada0: Previously was known as ad0 ada1 at ahcich3 bus 0 scbus4 target 0 lun 0 ada1: <ST3750330AS SD1A> ATA-8 SATA 2.x device ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada1: Command Queueing enabled ada1: 715404MB (1465149168 512 byte sectors: 16H 63S/T 16383C) Crap! I must be dreaming then. -- Alexander Kabaev
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