Linksys Cardbus performance (new)

Nicholas Jenkins Nicholas.S.Jenkins@cdc.com
Thu Feb 25 14:52:33 1999


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Good Day, ALL:

Today, I put Mr. Becker's latest csr0 option to the test.
I found that using .90q instead of .90p today brought
my performance values more in line with what other
people have been finding.  (Also of note is that I discoverd
yesterday some router problems we were having for the
last few days - which may also have had an effect on my
prior statistics.)

At any rate, I ran multitudinous FTPs over the last hour,
and the following are my results:

*) In general it would appear (as Mr. Becker had noted in a prior
    posting) that at least for the Linksys, bit 24 being set to "1" 
    hurts - at least for settings below "C000" - except "0000" - 
    which is an odd case.
*) In general, it would not appear (based on my new numbers)
    that adding the "burst limit" particularly helps (or hurts)
*) In general I found that my best setting is roughly "00A0C000",
    although it was very little different from any of the following:
    00A04000
    00A04800
    00A08000
    00A09000
    00A0E000
    00A00000
    01A0C000
    01A0E000
    01A00000

Here are my numbers, in kilobytes/sec.  (for the large numbers,
I would say that any difference of <= ~100K is not significant, since
our hubbed network traffic is "bursty".):

00A04000
moon - 970-1000
wrtfac - 790

00A04800
moon - 970-1000
wrtfac - 860

00A08000 - 1st time
moon - 980-1000
wrtfac - 930

00A08000 - 2nd time
moon - 930-940
wrtfac - 900

00A09000 - 1st time
moon 920-1000
wrtfac - 910

00A09000 - 2nd time
moon - 900-940
wrtfac - 870

00A0C000 - 1st time
moon - 840-1000
wrtfac - 920

00A0C000 - 2nd time
moon - 880-930
wrtfac - 830

00A0E000 - 1st time
moon - 850-890
wrtfac - 860

00A0E000 - 2nd time
moon - 900-950
wrtfac - 930

00A00000 - 1st time
moon - 850-960
wrtfac - 950

00A00000 - 2nd time
moon 830-850
wrtfac - 820

01A04000
moon - 44-45
wrtfac - 40

01A04800
moon 13-21
wrtfac - 21

01A08000 - 1st time
moon - 68-90
wrtfac - 92

01A08000 - 2nd time
moon - 87-91
wrtfac - 87

01A09000 - 1st time
moon - 58-180
wrtfac - 96

01A09000 - 2nd time
moon - 65-190
wrtfac - 140

01A0C000 - 1st time
moon - 800-1000
wrtfac - 880

01A0C000 - 2nd time
moon - 880-950
wrtfac - 880

01A0E000 - 1st time
moon - 740, 820
wrtfac - 860

01A0E000 - 2nd time
moon - 770-870
wrtfac - 830

01A00000 - 1st time
moon - 830-970
wrtfac - 910

01A00000 - 2nd time
moon - 900-1000
wrtfac - 900

-NICK
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