Date: Fri, 3 Mar 1995 02:06:17 -0800 (PST) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: hasty@netcom.com (Amancio Hasty Jr) Cc: freebsd-hackers@FreeBSD.org, matt@lkg.dec.com Subject: Re: FDDI on FreeBSD .... Message-ID: <199503031006.CAA16644@gndrsh.aac.dev.com> In-Reply-To: <199503030801.AAA20235@netcom14.netcom.com> from "Amancio Hasty Jr" at Mar 3, 95 00:01:29 am
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>
> >ttcp-r: 67108864 bytes in 12.57 real seconds = 5214.09 KB/sec +++
>
> Boy I am green with envy :)
Aren't we all, though I think DEC gets to much for these boards, I have
heard rumors of a board based upon the same chip comming out towards the
end of march for ~$200.00. Intel already has there 100MPS ethernet cards
out for $215 or so buy computer shopper prices.
>
> I hope that you get a good fast PCI motherboard for your P90.
> There appears to be some discrepencies in terms of PCI performance
> and memory bandwith which in your case can help you out a lot.
>
> Now does anyone have any comments on a fast P90 PCI motherboard?
> Like how fast is a triton based motherboard??
Here are some comparitive results, the ASUS PCI/E-P54NP4 is based upon
the Neptune chip set, the ASUS PCI/I-P54TP4 is based upon the Triton
chip set. [Note, ASUS's ftp site and www pages refer to this as the
PCI/I-P55TP4, it really is a P54TP4]
Note, this is the *SLOW* version of the Triton chip set setup in that
I am using standard fast page mode simms instead of the EDO simms, and
the board I currently have uses standard SRAMS instead of the burst SRAMS
that Triton is designed to take advantages of. So in effect this comparison
is apples to apples in that I am not taking any technology advantages other
than the change in chipset and board layout. You'll notice the one big
boost is during the WRITE_NOCACHE test.
This is a cache/memory bandwidth test based upon code from the mailling
list written by Bruce Evans, Modified by L Jonas Olsson to do writes,
and then corrected for an extra store/load operation by Bruce Evans.
I will provide my actual test program for people who want to compare
apples to oranges :-).
Board: ASUS PCI/E-P54NP4 Board: ASUS PCI/I-P54TP4
CPU: P54C-90(A80502-90) CPU: P54C-90(A80502-90)
Cache: 256K-15nS SRAM Cache: 256K-15nS SRAM
Memory: 32MB Fast Page Mode Memory: 32MB Fast page mode
-DBDE_ORIGINAL -DCORRECTED -DBDE_ORIGINAL -DCORRECTED
1024: 204081633 bytes/sec 1024: 208333333 bytes/sec
2048: 212765957 bytes/sec 2048: 227272727 bytes/sec
4096: 227272727 bytes/sec 4096: 227272727 bytes/sec
8192: 204081633 bytes/sec 8192: 217391304 bytes/sec
16384: 103092784 bytes/sec 16384: 101010101 bytes/sec
32768: 89285714 bytes/sec 32768: 104166667 bytes/sec
65536: 89285714 bytes/sec 65536: 80000000 bytes/sec
131072: 86206897 bytes/sec 131072: 90090090 bytes/sec
262144: 71942446 bytes/sec 262144: 76923077 bytes/sec
524288: 65789474 bytes/sec 524288: 66666667 bytes/sec
1048576: 60240964 bytes/sec 1048576: 62111801 bytes/sec
2097152: 59880240 bytes/sec 2097152: 62111801 bytes/sec
4194304: 56179775 bytes/sec 4194304: 60606061 bytes/sec
8388608: 52910053 bytes/sec 8388608: 57471264 bytes/sec
16777216: 41493776 bytes/sec 16777216: 52356021 bytes/sec
-DLJO_WRITE_NOCACHE -DCORRECTED -DLJO_WRITE_NOCACHE -DCORRECTED
1024: 23201856 bytes/sec 1024: 37735849 bytes/sec
2048: 23255814 bytes/sec 2048: 38022814 bytes/sec
4096: 23255814 bytes/sec 4096: 37735849 bytes/sec
8192: 23255814 bytes/sec 8192: 38022814 bytes/sec
16384: 23148148 bytes/sec 16384: 38022814 bytes/sec
32768: 23148148 bytes/sec 32768: 38022814 bytes/sec
65536: 23148148 bytes/sec 65536: 37593985 bytes/sec
131072: 23201856 bytes/sec 131072: 37735849 bytes/sec
262144: 22988506 bytes/sec 262144: 37313433 bytes/sec
524288: 23148148 bytes/sec 524288: 37735849 bytes/sec
1048576: 23041475 bytes/sec 1048576: 37453184 bytes/sec
2097152: 22883295 bytes/sec 2097152: 37313433 bytes/sec
4194304: 22831050 bytes/sec 4194304: 37037037 bytes/sec
8388608: 22675737 bytes/sec 8388608: 36496350 bytes/sec
16777216: 22371365 bytes/sec 16777216: 35087719 bytes/sec
-DLJO_WRITE_CACHE -DCORRECTED -DLJO_WRITE_CACHE -DCORRECTED
1024: 238095238 bytes/sec 1024: 250000000 bytes/sec
2048: 256410256 bytes/sec 2048: 270270270 bytes/sec
4096: 263157895 bytes/sec 4096: 263157895 bytes/sec
8192: 243902439 bytes/sec 8192: 227272727 bytes/sec
16384: 62111801 bytes/sec 16384: 55555556 bytes/sec
32768: 57471264 bytes/sec 32768: 55555556 bytes/sec
65536: 61349693 bytes/sec 65536: 50000000 bytes/sec
131072: 47169811 bytes/sec 131072: 45871560 bytes/sec
262144: 37453184 bytes/sec 262144: 42918455 bytes/sec
524288: 30395137 bytes/sec 524288: 40160643 bytes/sec
1048576: 29239766 bytes/sec 1048576: 38167939 bytes/sec
2097152: 28735632 bytes/sec 2097152: 38314176 bytes/sec
4194304: 28571429 bytes/sec 4194304: 37593985 bytes/sec
8388608: 27777778 bytes/sec 8388608: 37313433 bytes/sec
16777216: 26809651 bytes/sec 16777216: 36231884 bytes/sec
--
Rod Grimes rgrimes@gndrsh.aac.dev.com
Accurate Automation Company Custom computers for FreeBSD
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