Date: Sun, 13 Apr 1997 23:29:01 +0300 (EEST) From: Narvi <narvi@haldjas.folklore.ee> To: Warner Losh <imp@village.org> Cc: Terry Lambert <terry@lambert.org>, hackers@freebsd.org Subject: Re: 430TX ? Message-ID: <Pine.BSF.3.95.970413230326.16464B-100000@haldjas.folklore.ee> In-Reply-To: <E0wGTqz-00060j-00@rover.village.org>
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On Sun, 13 Apr 1997, Warner Losh wrote: > In message <Pine.BSF.3.95.970413185032.14446A-100000@haldjas.folklore.ee> Narvi writes: > : 4MB SRAM simms (12 ns) are available now. But where shall you plug > : them into? I really doubt any present PC/PowerPC/Alpha chipset is capable > : of making use of SRAM. Though it would make wonders to applicatiions > : hindered by present memory throughput > > I have a R4700 based MIPS board that uses 4M SRAM SIMM-like things. Cool! I guess there are also DSP boards out there may also support simm sockets for expansion RAM. In the case of SRAM main memory we live in a world without L2-cache misses, right? OK, it won't, the penalty would just be smaller/nonexistant (the L2 chache get trashed in the beginning of first loop, the usefulness for the rest is real small and other such "pathological" cases). Well, enough ranting - I just hate it when it doesn't make any visible differnce whetever the file is already cached in memory or being read in from a scsi disk on the fly or which Ppro you used. Sander > > Warner >
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