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Date:      Thu, 9 Feb 1995 22:39:30 -0500
From:      Garrett Wollman <wollman@halloran-eldar.lcs.mit.edu>
To:        Ron Minnich <rminnich@mini.sarnoff.com>
Cc:        freebsd-questions@FreeBSD.org
Subject:   enet throughput
Message-ID:  <9502100339.AA02532@halloran-eldar.lcs.mit.edu>
In-Reply-To: <Pine.SGI.3.91.950209202234.26156A-100000@mini.sarnoff.com>
References:  <Pine.SGI.3.91.950209202234.26156A-100000@mini.sarnoff.com>

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<<On Thu, 9 Feb 1995 20:24:54 -0500 (EST), Ron Minnich <rminnich@mini.sarnoff.com> said:

> from freebsd -> freebsd i see 200 kbytes/second. Linux on similar boxes, 
> same cards, sees 980 according to a friend. 

Two almost identical Pentium 60's running yesterday's kernel, one with
a genuine SMC 8416 and one with a cheap 8216 clone:

ttcp-r: 16777216 bytes in 16.56 real seconds = 989.23 KB/sec +++
ttcp-r: 16777216 bytes in 2.89 CPU seconds = 5678.54 KB/cpu sec
ttcp-r: 11460 I/O calls, msec/call = 1.48, calls/sec = 691.93
ttcp-r: 0.0user 2.8sys 0:16real 17% 52i+613d 138maxrss 0+2pf 6787+108csw

ttcp-t: 16777216 bytes in 16.67 real seconds = 983.04 KB/sec +++
ttcp-t: 16777216 bytes in 3.65 CPU seconds = 4494.08 KB/cpu sec
ttcp-t: 2048 I/O calls, msec/call = 8.33, calls/sec = 122.88
ttcp-t: 0.0user 3.5sys 0:16real 21% 35i+440d 178maxrss 0+2pf 3969+41csw

This on a moderately loaded (~ 100 machines) Ethernet.

-GAWollman

--
Garrett A. Wollman   | Shashish is simple, it's discreet, it's brief. ... 
wollman@lcs.mit.edu  | Shashish is the bonding of hearts in spite of distance.
Opinions not those of| It is a bond more powerful than absence.  We like people
MIT, LCS, ANA, or NSA| who like Shashish.  - Claude McKenzie + Florent Vollant



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