SATA is to slow comparing with linux

Mike Tancsa mike at
Wed Sep 30 13:42:44 UTC 2009

At 09:10 AM 9/30/2009, Bruce Cran wrote:

>I ran the tiobench test on -CURRENT a few days ago and the ahci driver
>showed an improvement in latency over the ata driver; I didn't
>test transfer rates though.

I was running the AHCI driver on the freebsd-current tinderbox for 3 
weeks with very good results.  I had to recently change back to the 
ata code as smartmontools are not (yet) supported and one of the 
drives started to throw errors. Other than that, I found it to be the 
same speed or faster (depending on the workload). This was on a 
Phenom 9950 Processor and ATI IXP700/800 SATA300 chipset on AMD64, 8G of RAM.


Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike at
Providing Internet since 1994          
Cambridge, Ontario Canada               

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