../scripts/getsummary `../scripts/getlist ` | ../scripts/percent L M B E N C H 2 . 0 S U M M A R Y ------------------------------------ Basic system parameters ---------------------------------------------------- Host OS Description Mhz --------- ------------- ----------------------- ---- riderbook Linux 2.4.20- i686-pc-linux-gnu 797 riderbook Linux 2.4.21p i686-pc-linux-gnu 797 riderbook Linux 2.4.20- i686-pc-linux-gnu 797 riderbook Linux 2.4.21p i686-pc-linux-gnu 797 riderbook Linux 2.4.21p i686-pc-linux-gnu 797 0 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 --------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ---- riderbook Linux 2.4.20- 797 0.40 0.60 2.23 3.21 20.3 1.00 3.29 122. 864. 4890 riderbook Linux 2.4.21p 797 0.41 0.56 2.20 3.04 29.2 1.01 3.31 112. 899. 4957 riderbook Linux 2.4.20- 797 0.41 0.57 2.15 3.01 17.0 1.00 3.28 104. 892. 4931 riderbook Linux 2.4.21p 797 0.41 0.55 2.15 2.98 28.9 1.01 3.33 112. 864. 4996 riderbook Linux 2.4.21p 797 0.38 0.55 2.09 3.00 28.1 0.99 3.33 112. 919. 4912 0 4% 4% 3% 3% 25% 1% 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 --------- ------------- ----- ------ ------ ------ ------ ------- ------- riderbook Linux 2.4.20- 0.930 4.4000 17.8 11.1 124.7 27.6 124.5 riderbook Linux 2.4.21p 0.830 4.4000 13.9 8.7000 124.9 28.4 124.8 riderbook Linux 2.4.20- 0.980 4.1600 14.0 6.4800 124.8 27.7 125.2 riderbook Linux 2.4.21p 0.890 4.4700 14.1 5.7700 124.6 28.5 124.7 riderbook Linux 2.4.21p 0.660 4.2900 20.0 6.2900 124.9 28.9 124.9 16% 3% 19% 40% 0 2% 0 *Local* Communication latencies in microseconds - smaller is better ------------------------------------------------------------------- Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn --------- ------------- ----- ----- ---- ----- ----- ----- ----- ---- riderbook Linux 2.4.20- 0.930 4.994 8.39 25.4 80.4 riderbook Linux 2.4.21p 0.830 4.551 8.17 23.7 81.3 riderbook Linux 2.4.20- 0.980 4.605 7.74 24.7 79.1 riderbook Linux 2.4.21p 0.890 4.495 8.22 23.5 80.6 riderbook Linux 2.4.21p 0.660 4.559 8.42 23.3 81.6 16% 4% 4% 4% 2% 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 --------- ------------- ------ ------ ------ ------ ------- ----- ----- riderbook Linux 2.4.20- 55.6 85.3 214.2 118.5 442.0 0.792 1.00000 riderbook Linux 2.4.21p 65.0 93.2 244.4 129.6 446.0 0.653 1.00000 riderbook Linux 2.4.20- 60.7 84.4 240.9 117.6 418.0 0.693 1.00000 riderbook Linux 2.4.21p 70.3 94.0 264.3 130.3 446.0 0.651 1.00000 riderbook Linux 2.4.21p 70.3 93.8 262.5 129.9 450.0 0.642 1.00000 13% 7% 11% 6% 3% 9% 0 *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 --------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- ----- riderbook Linux 2.4.20- 788. 641. 132. 372.1 478.2 171.9 172.4 476. 169.9 riderbook Linux 2.4.21p 467. 339. 183. 388.6 479.4 153.7 155.7 479. 169.9 riderbook Linux 2.4.20- 789. 301. 153. 389.8 479.5 149.3 156.4 479. 170.2 riderbook Linux 2.4.21p 523. 399. 184. 385.8 479.6 149.3 150.4 479. 170.2 riderbook Linux 2.4.21p 424. 311. 102. 387.3 479.5 151.3 154.4 479. 170.2 35% 35% 27% 2%