L M B E N C H 2 . 0 S U M M A R Y ------------------------------------ Basic system parameters ---------------------------------------------------- Host OS Description Mhz --------- ------------- ----------------------- ---- skif.offi Linux 2.4.20- i686-pc-linux-gnu 1000 skif.offi Linux 2.4.20- i686-pc-linux-gnu 1000 skif.offi Linux 2.4.20- i686-pc-linux-gnu 1000 skif.offi Linux 2.4.20- i686-pc-linux-gnu 1000 skif.offi Linux 2.4.20- i686-pc-linux-gnu 1000 skif.offi Linux 2.4.20- i686-pc-linux-gnu 1000 skif.offi Linux 2.4.21r i686-pc-linux-gnu 1000 skif.offi Linux 2.4.21r i686-pc-linux-gnu 1000 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 --------- -------------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ---- skif.offi Linux 2.4.20-alt1-sm 1000 0.34 0.64 2.38 3.50 27.5 0.89 2.90 197. 210. 3921 skif.offi Linux 2.4.20-alt2-sm 1000 0.34 0.63 2.46 3.41 26.6 0.85 2.75 180. 205. 3882 skif.offi Linux 2.4.20-alt2-sm 1000 0.34 0.61 2.46 3.63 28.5 0.85 2.75 184. 198. 3900 skif.offi Linux 2.4.20-alt2-sm 1000 0.34 0.62 2.47 3.60 30.5 0.85 2.75 187. 206. 3926 skif.offi Linux 2.4.20-alt4-sm 1000 0.34 0.64 2.54 3.71 26.4 0.85 2.73 179. 200. 3854 skif.offi Linux 2.4.20-alt4-sm 1000 0.34 0.61 2.54 3.61 27.1 0.85 2.74 184. 198. 3918 skif.offi Linux 2.4.21rel-std- 1000 0.36 0.63 2.43 3.56 24.9 0.84 2.75 115. 123. 3974 skif.offi Linux 2.4.21rel-std- 1000 0.34 0.62 2.39 3.60 26.3 0.84 2.76 114. 126. 3974 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 --------- -------------------- ----- ------ ------ ------ ------ ------- ------- skif.offi Linux 2.4.20-alt1-sm 2.040 5.1700 12.8 8.8600 116.9 25.6 117.0 skif.offi Linux 2.4.20-alt2-sm 1.860 5.0100 13.1 7.3500 115.9 29.2 117.3 skif.offi Linux 2.4.20-alt2-sm 1.820 5.0000 32.4 8.2600 116.8 28.4 116.8 skif.offi Linux 2.4.20-alt2-sm 1.760 4.9000 13.6 8.4300 116.6 27.5 116.8 skif.offi Linux 2.4.20-alt4-sm 1.930 5.1600 13.9 8.6600 116.8 29.0 117.0 skif.offi Linux 2.4.20-alt4-sm 2.020 5.1100 19.9 7.5300 117.1 30.3 117.3 skif.offi Linux 2.4.21rel-std- 0.870 3.6400 11.6 5.4700 103.7 25.4 109.7 skif.offi Linux 2.4.21rel-std- 0.940 6.4300 38.7 5.1600 99.4 17.4 109.2 *Local* Communication latencies in microseconds - smaller is better ---------------------------------------------------------------------------- Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn --------- -------------------- ----- ----- ---- ----- ----- ----- ----- ---- skif.offi Linux 2.4.20-alt1-sm 2.040 8.101 16.9 28.1 44.7 40.6 55.2 66.5 skif.offi Linux 2.4.20-alt2-sm 1.860 7.686 19.9 30.9 43.7 40.3 55.3 66.7 skif.offi Linux 2.4.20-alt2-sm 1.820 7.632 21.4 28.0 43.8 40.3 55.4 66.5 skif.offi Linux 2.4.20-alt2-sm 1.760 7.811 20.5 27.7 43.2 40.1 55.0 66.4 skif.offi Linux 2.4.20-alt4-sm 1.930 7.966 18.6 19.7 42.8 40.2 55.8 66.2 skif.offi Linux 2.4.20-alt4-sm 2.020 8.299 17.0 20.1 44.7 41.1 56.9 66.6 skif.offi Linux 2.4.21rel-std- 0.870 28.3 21.8 51.3 44.4 49.4 68.0 80.3 skif.offi Linux 2.4.21rel-std- 0.940 26.2 23.3 51.7 44.1 50.1 59.1 79.9 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 --------- -------------------- ------ ------ ------ ------ ------- ----- ----- skif.offi Linux 2.4.20-alt1-sm 70.3 23.9 237.0 64.8 993.0 0.670 2.00000 skif.offi Linux 2.4.20-alt2-sm 68.9 25.5 242.2 64.9 1026.0 0.711 2.00000 skif.offi Linux 2.4.20-alt2-sm 69.0 25.7 238.7 65.2 1036.0 1.330 2.00000 skif.offi Linux 2.4.20-alt2-sm 68.8 25.4 240.4 62.2 1022.0 0.712 2.00000 skif.offi Linux 2.4.20-alt4-sm 68.4 24.3 235.1 64.7 992.0 0.724 2.00000 skif.offi Linux 2.4.20-alt4-sm 68.8 25.0 241.9 61.3 1014.0 0.734 2.00000 skif.offi Linux 2.4.21rel-std- 78.8 24.9 247.4 65.4 974.0 0.745 2.00000 skif.offi Linux 2.4.21rel-std- 79.0 25.2 248.5 65.7 977.0 0.717 2.00000 *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 --------- -------------------- ---- ---- ---- ------ ------ ------ ------ ---- ----- skif.offi Linux 2.4.20-alt1-sm 620. 288. 193. 450.6 532.7 247.8 194.7 532. 250.9 skif.offi Linux 2.4.20-alt2-sm 795. 282. 211. 446.9 532.9 240.1 179.1 532. 224.4 skif.offi Linux 2.4.20-alt2-sm 782. 325. 211. 451.5 532.9 244.6 182.9 532. 226.2 skif.offi Linux 2.4.20-alt2-sm 351. 277. 193. 452.1 532.9 239.1 185.2 533. 229.1 skif.offi Linux 2.4.20-alt4-sm 865. 287. 166. 452.2 532.9 238.3 179.1 532. 224.8 skif.offi Linux 2.4.20-alt4-sm 745. 284. 192. 450.3 527.4 246.8 191.2 526. 228.6 skif.offi Linux 2.4.21rel-std- 828. 112. 184. 458.4 533.1 238.4 178.0 533. 225.6 skif.offi Linux 2.4.21rel-std- 827. 290. 192. 457.1 533.0 241.2 180.3 533. 226.8 Memory latencies in nanoseconds - smaller is better (WARNING - may not be correct, check graphs) ------------------------------------------------------------------------- Host OS Mhz L1 $ L2 $ Main mem Guesses --------- -------------------- ---- ----- ------ -------- ------- skif.offi Linux 2.4.20-alt1-sm 1000 3.000 7.0000 107.3 skif.offi Linux 2.4.20-alt2-sm 1000 3.000 35.2 107.3 skif.offi Linux 2.4.20-alt2-sm 1000 3.000 7.0010 107.3 skif.offi Linux 2.4.20-alt2-sm 1000 2.999 7.0000 107.4 skif.offi Linux 2.4.20-alt4-sm 1000 3.000 7.0000 107.3 skif.offi Linux 2.4.20-alt4-sm 1000 3.000 41.6 107.2 skif.offi Linux 2.4.21rel-std- 1000 3.000 7.0000 107.3 skif.offi Linux 2.4.21rel-std- 1000 2.999 6.9990 107.2