whee...

David S. Miller (davem@caip.rutgers.edu)
Sun, 17 Mar 1996 08:00:54 -0500


"No worries." -Andrew Tridgell

All on the same exact hardware folks.

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
--------- ------------- ---- ------- ------- ------- ------- ---- ------ ------
trombetas Linux 1.3.74 50 13 8.7K 39.1K 53K 334 80 95
negro.rut SunOS 4.1.3_U 49 124 18.3K 63.9K 110K 470 152 262
geneva.ru SunOS 5.5 50 31 33.7K 148.2K 274K 596 174 205

*Local* Communication latencies in microseconds
-----------------------------------------------
Host OS Pipe UDP RPC/ TCP RPC/
UDP TCP
--------- ------------- ------- ------- ------- ------- -------
trombetas Linux 1.3.74 285 1004 1776 1406 2614
negro.rut SunOS 4.1.3_U 890 1375 2287 1573 2804
geneva.ru SunOS 5.5 530 1563 2080 1354 2398

*Local* Communication bandwidths in megabytes/second
----------------------------------------------------
Host OS Pipe TCP File Mmap Bcopy Bcopy Mem Mem
reread reread (libc) (hand) read write
--------- ------------- ---- ---- ------ ------ ------ ------ ---- -----
trombetas Linux 1.3.74 9 3.8 25.0 21.1 18 25 41 36
negro.rut SunOS 4.1.3_U 4 2.0 19.5 8.2 18 24 41 36
geneva.ru SunOS 5.5 8 7.0 12.6 19.5 18 18 40 36

Memory latencies in nanoseconds
(WARNING - may not be correct, check graphs)
--------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem TLB Guesses
--------- ------------- --- ---- ---- -------- --- -------
trombetas Linux 1.3.74 50 19 169 179 659 No L2 cache?
negro.rut SunOS 4.1.3_U 49 20 175 183 -1 No L2 cache?
geneva.ru SunOS 5.5 49 - - - - Bad mhz?