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Subject[BENCHMARK] 2.5.59 Lmbench performance
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Since 2.5.56, the results are not varying much. Almost all the changes are less than 5%. Here are the results of 2.5.59


********************************************************************
Kernel 2.5.59
Lmbench results
********************************************************************

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 2.5.59 i686-pc-linux-gnu 790
benchtest Linux 2.5.59 i686-pc-linux-gnu 790
benchtest Linux 2.5.59 i686-pc-linux-gnu 790
benchtest Linux 2.5.59 i686-pc-linux-gnu 790
benchtest Linux 2.5.59 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 2.5.59 790 0.46 0.85 7.22 8.74 1.31 4.09 257 1311 6794
benchtest Linux 2.5.59 790 0.46 0.84 7.24 8.78 34 1.25 3.66 266 1305 6708
benchtest Linux 2.5.59 790 0.46 0.87 7.22 8.78 35 1.26 3.66 254 1314 6763
benchtest Linux 2.5.59 790 0.46 0.87 7.26 8.84 36 1.26 3.66 261 1303 6770
benchtest Linux 2.5.59 790 0.46 0.83 7.19 8.72 34 1.25 3.67 290 1319 6796

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 2.5.59 1.690 5.0400 14 7.5800 175 38 178
benchtest Linux 2.5.59 1.580 5.3700 14 10 178 44 181
benchtest Linux 2.5.59 1.740 5.3500 14 8.8300 179 46 180
benchtest Linux 2.5.59 1.750 5.4000 15 11 180 43 181
benchtest Linux 2.5.59 1.660 5.3500 15 8.4100 180 41 180

*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 2.5.59 1.690 8.813 14 25 48 31 59 110
benchtest Linux 2.5.59 1.580 8.769 14 25 48 32 59 110
benchtest Linux 2.5.59 1.740 8.759 14 25 48 31 59 110
benchtest Linux 2.5.59 1.750 8.717 14 24 48 31 59 111
benchtest Linux 2.5.59 1.660 8.894 14 25 48 32 60 110

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 2.5.59 92 31 332 82 642 1.035 4.00000
benchtest Linux 2.5.59 94 31 331 84 641 1.029 4.00000
benchtest Linux 2.5.59 92 32 335 86 632 1.059 4.00000
benchtest Linux 2.5.59 91 31 332 83 638 1.061 4.00000
benchtest Linux 2.5.59 94 31 346 85 631 1.022 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 2.5.59 323 426 48 298 356 124 113 356 170
benchtest Linux 2.5.59 375 563 48 294 353 123 112 353 169
benchtest Linux 2.5.59 395 559 47 294 353 123 112 353 169
benchtest Linux 2.5.59 397 538 47 293 352 123 112 353 169
benchtest Linux 2.5.59 292 543 48 294 352 123 112 354 170

Memory latencies in nanoseconds - smaller is better
(WARNING - may not be correct, check graphs)
---------------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem Guesses
--------- ------------- ---- ----- ------ -------- -------
benchtest Linux 2.5.59 790 3.802 8.8820 174
benchtest Linux 2.5.59 790 3.807 8.8820 175
benchtest Linux 2.5.59 790 3.799 55 175
benchtest Linux 2.5.59 790 3.798 56 175
benchtest Linux 2.5.59 790 3.808 54 175

Aniruddha Marathe
WIPRO Technologies, India
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