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PCI 2.0 (33MHz) support for maximum burst data transfer from disk drive
- To: Mailing List Recipients <pci-sig-request@znyx.com>
- Subject: PCI 2.0 (33MHz) support for maximum burst data transfer from disk drive
- From: "George Shin" <gshin@hertz.elee.calpoly.edu>
- Date: Mon, 5 Aug 1996 16:51:35 -0700
- Resent-Date: Mon, 5 Aug 1996 16:51:35 -0700
- Resent-From: pci-sig-request@znyx.com
- Resent-Message-Id: <"fUlPw3.0.Xd3.ZYe1o"@dart>
- Resent-Sender: pci-sig-request@znyx.com
Hello,
Has anyone done some analysis on what the maximum burst data transfer
rate from disk drive the PCI memory writes/reads can support? What i
know is that PCI 2.0 (33MHz) can support a burst transfer of up to
132MB/sec, and realistically can sustain 70 to 80MB/sec.
Suppose you have a Ultra-SCSI drive that can burst transfer to the
host PCI SCSI HAC (Host Adapter Card) at 40 to 80MB/sec but only at
a size of 40 to 60 bytes. Would PCI 2.0 (33MHz) have any PCI memory
writes/reads bottle necking problem with this type of short (very
short) burst data transfer?
Thank you very much,
-gshin
⠌ y