From: lm@slovax.engr.sgi.com (Larry McVoy)
Newsgroups: comp.arch,comp.benchmarks,comp.unix.bsd,
comp.os.386bsd.announce,comp.os.linux.announce
Subject: Announce: lmbench1.0 benchmarksuite released
Date: 1 Dec 1994 19:38:58 +0200
Organization: Silicon Graphics Inc., Mountain View, CA
Sender: wirzeniu@cc.Helsinki.FI
Approved: linux-announce@tc.cornell.edu (Lars Wirzenius)
Message-ID: <3bl1ni$amu@kruuna.Helsinki.FI>
Keywords: benchakring, lmbench, latency, bandwidth
Hi benchmarkers,
I have written a series of microbenchmarks that measure various
parts of your system. The general classes are latency and bandwidth,
and the things measured include processes, networking, disk, file
system, memory, and processor. The memory latency measurment is pretty
nice, if I do say so myself :-), because it shows both size and
latencies of onboard and external caches, as well as main memory
latencies with and without TLB misses. Kind of a handy way to measure
your motherboard.
The benchmarks are measuring OS stuff, mostly, but are quite
portable: I've run them on Linux, NetBSD, AIX, OSF/1, SunOS, Solaris,
HP-UX, and IRIX.
I've include example ascii output (you can also get graphs) for
some preliminary results. I'd like if you picked up the benchmarks and
ran them on your system and sent me the results if you think they are
better than the ones I have, or if I don't have results from your
machine/os. Please read the COPYING files before posting results.
I am interested in feedback as to the usefulness, correctness,
and completeness of the benchmark suite. If your pet performance peeve
is not measured here, let me know.
I posted the sources in comp.benchmarks (they are in 9 parts),
and you may also get the current sources and results by sending a
message as follows:
$ Mail archives@slovax.engr.sgi.com
Subject: lmbench1.0*
^D
Other subject lines that you may use are
help get help
lmbench.ctx context switching graphs
lmbench.bg bargraphs of various tests
lmbench.mem graphs of memory latencies
Example results:
L M B E N C H 1 . 0 S U M M A R Y
------------------------------------
Processor, Processes - times in microseconds
--------------------------------------------
Host OS Mhz Null Null Simple /bin/sh Mmap 2-proc 8-proc
Syscall Process Process Process lat ctxsw ctxsw
--------- ------------- ---- ------- ------- ------- ------- ---- ------ ------
rs6000 AIX 2 62 23 2.0K 7.3K 23K 3817 20 32
seahorse HP-UX A.09.03 99 14 3.6K 10.1K 18K 116 25 29
snake HP-UX A.09.01 66 21 2.6K 5.7K 17K 156 47 55
IP22 IRIX 5.3 198 11 3.1K 8.0K 19K 260 40 38
pentium Linux 1.1.54 91 3 3.3K 15.4K 49K 33 66 94
alpha OSF1 V2.1 182 13 4.8K 16.1K 43K 172 25 42
ss20.50 SunOS 5.4 50 9 10.7K 57.5K 113K 130 54 85
ss20.61 SunOS 5.4 61 7 8.0K 45.8K 87K 104 37 52
*Local* Communication latencies in microseconds
-----------------------------------------------
Host OS Pipe UDP RPC/ TCP RPC/
UDP TCP
--------- ------------- ------- ------- ------- ------- -------
rs6000 AIX 2 143 385 820 498 1054
seahorse HP-UX A.09.03 193 244 832 262 812
snake HP-UX A.09.01 296 403 1195 367 1142
IP22 IRIX 5.3 131 313 671 278 641
pentium Linux 1.1.54 157 658 1030 1164 1591
alpha OSF1 V2.1 185 404 718 428 851
ss20.50 SunOS 5.4 194 590 935 560 1196
ss20.61 SunOS 5.4 150 414 622 335 784
*Local* Communication bandwidths in megabytes/second
----------------------------------------------------
Host OS Pipe TCP File Mmap Bcopy Bcopy Mem Mem
reread reread (libc) (hand) read write
--------- ------------- ---- ---- ------ ------ ------ ------ ---- -----
rs6000 AIX 2 34 6.0 76.1 63.0 81 120 99 169
seahorse HP-UX A.09.03 38 35.2 44.7 32.1 25 31 49 52
snake HP-UX A.09.01 19 17.8 34.4 22.3 22 24 45 39
IP22 IRIX 5.3 34 22.1 32.3 43.7 32 31 69 66
pentium Linux 1.1.54 13 2.4 9.8 4.7 18 18 48 32
alpha OSF1 V2.1 32 12.1 39.4 22.7 39 41 76 78
ss20.50 SunOS 5.4 11 11.0 22.9 30.0 26 31 80 62
ss20.61 SunOS 5.4 24 19.5 31.0 30.7 23 24 59 40
Memory latencies in nanoseconds
(WARNING - may not be correct, check graphs)
--------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem TLB Guesses
--------- ------------- --- ---- ---- -------- --- -------
rs6000 AIX 2 61 15 229 247 776 No L2 cache?
seahorse HP-UX A.09.03 98 10 10 393 481 No L1 cache?
snake HP-UX A.09.01 65 15 15 378 1051 No L1 cache?
IP22 IRIX 5.3 197 10 76 1018 1129
pentium Linux 1.1.54 90 11 294 439 1254
alpha OSF1 V2.1 182 10 56 321 452
ss20.50 SunOS 5.4 49 20 284 291 575 No L2 cache?
ss20.61 SunOS 5.4 60 16 115 816 961
--
---
Larry McVoy (415) 390-1804 lm@sgi.com