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Re: YMMV - Sustained transfer rates on Intel 430VX motherboard
- To: Mailing List Recipients <pci-sig-request@znyx.com>
- Subject: Re: YMMV - Sustained transfer rates on Intel 430VX motherboard
- From: "Bender, Bernhard" <br@elsa.de>
- Date: Wed, 9 Apr 97 9:53:53 -0400
- In-Reply-To: <6A854B33019C1400>
- Organization: ELSA GmbH
- Resent-Date: Wed, 9 Apr 97 9:53:53 -0400
- Resent-From: pci-sig-request@znyx.com
- Resent-Message-Id: <"46UX5.0.5W1.W-qIp"@dart>
- Resent-Sender: pci-sig-request@znyx.com
- Sender: "Bender, Bernhard" <br@elsa.de>
well...
I also wonder why bus master transfer rates are so low with PCI chip
sets from intel. on a typical PPro system I often observe transfer
rates as low as 20 MByte/s. The bus master is otherwise able to
accept 80+ MB/s as a target.
If Bruce is still on this list, maybe he could elaborate on his
statement below and share his knowledge on just HOW to achieve the
transfer rates he claims to have seen.
> We have demonstrated sustained PCI to DRAM access in excess of 100
MB/s for each
> of these chipsets although a real application sharing the bus with
other devices
> will not be able to attain that in most instances.
BTW, I am most interested in achieving the maximum transfer rate for
read accesses to main memory
.
Bernhard Bender
---
Group Manager Core Technology ELSA Computer Graphics
ELSA GmbH Email: br@elsa.de
Sonnenweg 11 Fax : +49 (241) 606 2099
D-52 070 Aachen, Germany WWW : http://www.elsa.de
ˆ
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