From: "David S. Miller" <davem@caip.rutgers.edu>
To: torvalds@cs.helsinki.fi
Cc: lmlinux@neteng.engr.sgi.com
Subject: 1.3.75 is a little better...
Date: Mon, 18 Mar 1996 06:14:29 -0500 [thread overview]
Message-ID: <199603181114.GAA03222@huahaga.rutgers.edu> (raw)
0.2MB improvement in TCP bandwidth...
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 15 9.2K 40.2K 54K 342 89 99
trombetas Linux 1.3.75 50 13 8.6K 34.0K 57K 338 81 105
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 1026 1754 1384 2582
trombetas Linux 1.3.75 295 1040 1798 1380 2606
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 8 3.8 23.5 21.1 18 24 41 36
trombetas Linux 1.3.75 8 4.0 25.0 20.0 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 20 170 180 -1 No L2 cache?
trombetas Linux 1.3.75 50 20 170 180 659 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?
reply other threads:[~1996-03-18 11:14 UTC|newest]
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