[BENCHMARK] Lmbench results for 2.5.53

Aniruddha M Marathe (aniruddha.marathe@wipro.com)
Thu, 26 Dec 2002 10:10:36 +0530

Hi,
Here is a comparison of results of 2.5.52 and 2.5.53. The figures in the table below indicate median of 5 repetitions of tests. This result doesn't have many
Differences than the previous one.

2.5.53 2.5.52
==============================================================================
Processor, Processes - times in microseconds - smaller is better

1. increase in time for sh proc 8088 7979
------------------------------------------------------------------------------
Context switching - times in microseconds - smaller is better

1. 2p/0K ctxsw 1.390 1.190
2. 8p/16K ctxsw 7.74 6.47
------------------------------------------------------------------------------
*Local* Communication latencies in microseconds - smaller is better
1. RPC / TCP 165 159
------------------------------------------------------------------------------
File & VM system latencies in microseconds - smaller is better
1. prot fault 0.873 0.952
==============================================================================

*****************************************************************************
Lmbench result
kernel 2.5.53
*****************************************************************************

L M B E N C H 2 . 0 S U M M A R Y
------------------------------------
(Alpha software, do not distribute)

Basic system parameters
----------------------------------------------------
Host OS Description Mhz

--------- ------------- ----------------------- ----
benchtest Linux 2.5.53 i686-pc-linux-gnu 790
benchtest Linux 2.5.53 i686-pc-linux-gnu 790
benchtest Linux 2.5.53 i686-pc-linux-gnu 790
benchtest Linux 2.5.53 i686-pc-linux-gnu 790
benchtest Linux 2.5.53 i686-pc-linux-gnu 790

Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host OS Mhz null null open selct sig sig fork exec sh
call I/O stat clos TCP inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
benchtest Linux 2.5.53 790 0.46 0.83 27 29 1.31 5.23 348 1582 7984
benchtest Linux 2.5.53 790 0.44 0.83 27 29 36 1.30 5.46 360 1600 8089
benchtest Linux 2.5.53 790 0.44 0.80 27 29 32 1.29 5.25 385 1598 8088
benchtest Linux 2.5.53 790 0.46 0.84 27 29 36 1.30 5.46 384 1660 8146
benchtest Linux 2.5.53 790 0.44 0.81 27 29 34 1.28 5.24 382 1612 8040

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
benchtest Linux 2.5.53 1.390 5.0200 14 6.1700 179 36 178
benchtest Linux 2.5.53 1.430 5.2200 14 7.4400 178 44 181
benchtest Linux 2.5.53 1.450 5.1000 14 7.7400 181 44 181
benchtest Linux 2.5.53 1.470 5.0400 14 8.6800 182 41 181
benchtest Linux 2.5.53 1.380 5.0800 14 8.5500 179 41 181

*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
benchtest Linux 2.5.53 1.390 8.346 21 33 57 125 137 165
benchtest Linux 2.5.53 1.430 8.303 21 33 57 125 153 165
benchtest Linux 2.5.53 1.450 8.201 21 33 58 124 156 164
benchtest Linux 2.5.53 1.470 8.611 21 33 58 124 157 164
benchtest Linux 2.5.53 1.380 8.321 21 33 58 123 156 166

File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host OS 0K File 10K File Mmap Prot Page
Create Delete Create Delete Latency Fault Fault
--------- ------------- ------ ------ ------ ------ ------- ----- -----
benchtest Linux 2.5.53 118 58 392 130 604 0.866 4.00000
benchtest Linux 2.5.53 119 58 378 129 619 0.873 4.00000
benchtest Linux 2.5.53 119 59 381 123 610 1.096 4.00000
benchtest Linux 2.5.53 119 59 394 130 625 0.873 4.00000
benchtest Linux 2.5.53 119 58 379 129 610 0.789 4.00000

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem
UNIX reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
benchtest Linux 2.5.53 293 136 23 298 356 125 114 356 171
benchtest Linux 2.5.53 412 136 23 291 352 123 112 352 169
benchtest Linux 2.5.53 393 135 23 284 351 123 112 351 169
benchtest Linux 2.5.53 386 137 22 280 350 123 112 350 168
benchtest Linux 2.5.53 286 136 22 292 350 123 112 350 168

Memory latencies in nanoseconds - smaller is better
(WARNING - may not be correct, check graphs)
---------------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem Guesses
--------- ------------- ---- ----- ------ -------- -------
benchtest Linux 2.5.53 790 3.799 8.8850 175
benchtest Linux 2.5.53 790 3.799 8.8830 176
benchtest Linux 2.5.53 790 3.799 8.8820 176
benchtest Linux 2.5.53 790 3.799 8.8740 177
benchtest Linux 2.5.53 790 3.808 8.8870 177

Rest of the results are not much different.

Regards,
Aniruddha Marathe
WIPRO Technologies, India
aniruddha.marathe@wipro.com
+91-80-5502001 to 2008 extn 5092
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