[Thu, 30 Oct 2003 09:53:25 +0100] Arturo di Gioia <[EMAIL PROTECTED]> <-- :
> I'm using codes with loads of sequential I/O from/to disk. Is Serial ATA
> a good choice? Does anyone have any experience with it? I'm experiencing
> a rough 35MB/s of sequential read speed with my current ATA133 HD. Will
> I see a visible gain in performance? SCSI disks are too expensive for my
> budget, so they're not an option.
These are timings with four 20 GB ATA/133 HDs attached to a {poor,limited,integrated}
PDC20276 controller, running software RAID-0 under Gentoo :
/dev/md2:
Timing buffer-cache reads: 128 MB in 0.17 seconds =775.76 MB/sec
Timing buffered disk reads: 64 MB in 0.60 seconds =106.67 MB/sec
Consider striping with two or more disks !
--
Michael
Linux: Because rebooting is for adding new hardware.
--------------------------------------
Gentoo Linux 1.4 (Intel) Kernel 2.4.20 [SMP,ACPI,RAID] 12281.44 BogoMIPS
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