Messages in this thread | | | From | "Daniel J Blueman" <> | Subject | Re: Lower disk performance with 2.3.9.... | Date | Thu, 15 Jul 1999 21:32:34 +0100 |
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Hi,
The results I get are stable, ie 0 other running processes on an otherwise quiescent system. I consistently get 120MB/s from the buffer-cache.
I now know this is due to the smaller page-cache index (or something similar).
BTW: I get 20.25MB/s from my IDE Maxtor DiamondMax+ 5120 10GB harddisk. I think that's quite fast, but there's lots of new faster SCSI disks emerging.....
My processor is a Celeron 300A oc'd to 464Mhz, with a memory bus speed of 103Mhz. Since the level 2 cache of the celeron runs at full core speed (ie 464Mhz) memory performance rocks 8o) . Ideal for small (efficient) algorithms. My memory is a unified (2 banks on 1 DIMM) 128MB 8ns DIMM, working at CAS, RAS to CAS and RAS of 2. It's all tuned for speed, etc.
Email me for more info.... Dan
[snip] > Indeed, I was wondering if this was reproducible, i.e. the exact same > everything in single-user mode with many runs averaged together. > > But what I REALLY want to know is where you found such an excellent memory > I/O subsystem. Even with cas/2 PC100 SDRAM I can't seem to get better than > 54 MB/sec.
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