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From: | Marcus G. Daniels |
Subject: | Re: Multithreading question |
Date: | Thu, 30 Jan 2003 01:18:03 -0700 |
User-agent: | Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.2.1) Gecko/20021130 |
Motherboards like Tyan Trinity GC-SL (for Pentium 4, not even a Xeon) have PCI-X slots run 64 bits wide @ 133 Mhz. With a SCSI RAID controller two U320 SCSI channels you could do 640 MB/sec and still have bandwidth to spare. Plain old bus-mastered PCI 2.2 can do 133 MB/sec.That sounds awfully like running out of DRAM and going into paging. How much DRAM have you got, and have you tried more? If you can't avoid paging, you need a fast disk subsystem with plenty of cache. Pentium 4 PCs are rather ordinary in this area because they only have 32bit 33MHz PCI.
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