L M B E N C H 3 . 0 S U M M A R Y ------------------------------------ (Alpha software, do not distribute) Basic system parameters ------------------------------------------------------------------------------ Host OS Description Mhz tlb cache mem scal pages line par load bytes --------- ------------- ----------------------- ---- ----- ----- ------ ---- cento-5.4 Linux 2.6.18- x86_64-linux-gnu 1797 48 64 1.0200 1 cento-5.4 Linux 2.6.18- x86_64-linux-gnu 1797 48 64 1.0200 1 cento-5.4 Linux 2.6.18- x86_64-linux-gnu 1797 48 64 1.0200 1 fedora-10 Linux 2.6.27. x86_64-linux-gnu 1791 48 64 5.4100 1 fedora-10 Linux 2.6.27. x86_64-linux-gnu 1791 48 64 5.4400 1 fedora-10 Linux 2.6.27. x86_64-linux-gnu 1791 48 64 5.4400 1 Processor, Processes - times in microseconds - smaller is better ------------------------------------------------------------------------------ Host OS Mhz null null open slct sig sig fork exec sh call I/O stat clos TCP inst hndl proc proc proc --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- cento-5.4 Linux 2.6.18- 1797 0.24 0.33 2.31 3.01 5.14 0.36 1.36 195. 611. 2444 cento-5.4 Linux 2.6.18- 1797 0.24 0.34 2.17 3.21 5.27 0.36 1.46 186. 616. 2466 cento-5.4 Linux 2.6.18- 1797 0.24 0.33 2.26 3.25 5.08 0.38 1.36 195. 595. 2294 fedora-10 Linux 2.6.27. 1791 0.24 0.39 3.60 5.08 4.37 0.37 1.66 228. 847. 3077 fedora-10 Linux 2.6.27. 1791 0.24 0.39 3.40 5.06 4.38 0.37 1.64 227. 843. 2977 fedora-10 Linux 2.6.27. 1791 0.24 0.40 3.50 4.98 4.33 0.37 1.61 218. 841. 2996 Basic integer operations - times in nanoseconds - smaller is better ------------------------------------------------------------------- Host OS intgr intgr intgr intgr intgr bit add mul div mod --------- ------------- ------ ------ ------ ------ ------ cento-5.4 Linux 2.6.18- 0.5700 0.5600 0.2000 28.7 16.4 cento-5.4 Linux 2.6.18- 0.5600 0.5600 0.2000 28.5 16.3 cento-5.4 Linux 2.6.18- 0.5700 0.5600 0.2000 28.7 16.3 fedora-10 Linux 2.6.27. 0.5700 0.5700 0.2300 28.8 16.4 fedora-10 Linux 2.6.27. 0.5700 0.5600 0.2300 28.8 16.4 fedora-10 Linux 2.6.27. 0.5700 0.5600 0.2300 28.8 16.4 Basic uint64 operations - times in nanoseconds - smaller is better ------------------------------------------------------------------ Host OS int64 int64 int64 int64 int64 bit add mul div mod --------- ------------- ------ ------ ------ ------ ------ cento-5.4 Linux 2.6.18- 0.570 0.2500 43.4 45.1 cento-5.4 Linux 2.6.18- 0.560 0.2500 43.4 44.8 cento-5.4 Linux 2.6.18- 0.560 0.2500 43.4 45.0 fedora-10 Linux 2.6.27. 0.570 0.2500 43.5 45.2 fedora-10 Linux 2.6.27. 0.570 0.2500 43.5 45.2 fedora-10 Linux 2.6.27. 0.570 0.2500 43.5 45.2 Basic float operations - times in nanoseconds - smaller is better ----------------------------------------------------------------- Host OS float float float float add mul div bogo --------- ------------- ------ ------ ------ ------ cento-5.4 Linux 2.6.18- 2.2500 2.2800 10.6 7.3500 cento-5.4 Linux 2.6.18- 2.2500 2.2700 10.5 7.3300 cento-5.4 Linux 2.6.18- 2.2500 2.2800 10.5 7.3400 fedora-10 Linux 2.6.27. 2.2600 2.2900 10.6 7.3600 fedora-10 Linux 2.6.27. 2.2600 2.2900 10.6 7.3600 fedora-10 Linux 2.6.27. 2.2600 2.2900 10.6 7.3700 Basic double operations - times in nanoseconds - smaller is better ------------------------------------------------------------------ Host OS double double double double add mul div bogo --------- ------------- ------ ------ ------ ------ cento-5.4 Linux 2.6.18- 2.2500 2.2800 12.8 9.6100 cento-5.4 Linux 2.6.18- 2.2400 2.2800 12.7 9.5300 cento-5.4 Linux 2.6.18- 2.2500 2.2800 12.8 9.5900 fedora-10 Linux 2.6.27. 2.2600 2.2900 12.8 9.6200 fedora-10 Linux 2.6.27. 2.2600 2.2900 12.8 9.6200 fedora-10 Linux 2.6.27. 2.2600 2.2900 12.8 9.6200 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 --------- ------------- ------ ------ ------ ------ ------ ------- ------- cento-5.4 Linux 2.6.18- 0.9500 4.7300 8.3600 4.3700 8.2400 5.13000 12.6 cento-5.4 Linux 2.6.18- 0.8700 3.0300 5.3900 4.9400 8.4100 4.82000 12.8 cento-5.4 Linux 2.6.18- 0.9400 3.7100 7.1400 4.3200 7.5600 4.66000 10.7 fedora-10 Linux 2.6.27. 7.5300 2.5800 11.2 5.9300 9.9500 5.10000 15.0 fedora-10 Linux 2.6.27. 7.2400 2.4400 3.4600 6.1300 8.9000 7.19000 13.1 fedora-10 Linux 2.6.27. 7.4200 7.4500 11.4 4.8600 9.6700 5.43000 9.42000 *Local* Communication latencies in microseconds - smaller is better --------------------------------------------------------------------- Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn --------- ------------- ----- ----- ---- ----- ----- ----- ----- ---- cento-5.4 Linux 2.6.18- 0.950 6.480 6.87 20.0 21.1 19.3 23.8 27. cento-5.4 Linux 2.6.18- 0.870 9.939 9.61 20.3 24.0 18.8 26.8 27. cento-5.4 Linux 2.6.18- 0.940 11.7 6.96 20.4 21.3 21.7 25.0 29. fedora-10 Linux 2.6.27. 7.530 7.751 9.56 34.6 39.5 36.1 47.6 59. fedora-10 Linux 2.6.27. 7.240 7.733 9.16 34.5 24.6 41.0 32.5 110. fedora-10 Linux 2.6.27. 7.420 7.648 9.35 18.2 39.9 40.3 47.9 58. File & VM system latencies in microseconds - smaller is better ------------------------------------------------------------------------------- Host OS 0K File 10K File Mmap Prot Page 100fd Create Delete Create Delete Latency Fault Fault selct --------- ------------- ------ ------ ------ ------ ------- ----- ------- ----- cento-5.4 Linux 2.6.18- 15.8 9.5580 47.9 21.2 5150.0 0.416 1.60530 2.484 cento-5.4 Linux 2.6.18- 15.7 9.8031 48.5 21.4 4916.0 0.281 1.65810 2.503 cento-5.4 Linux 2.6.18- 15.9 9.4592 48.9 21.1 5139.0 0.394 1.47310 2.435 fedora-10 Linux 2.6.27. 61.5 13.9 103.5 28.1 6162.0 0.477 1.66810 2.297 fedora-10 Linux 2.6.27. 63.5 13.9 111.6 29.0 6103.0 0.384 1.75870 2.305 fedora-10 Linux 2.6.27. 62.2 14.1 110.6 29.2 6344.0 0.459 1.79540 2.297 *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 --------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- ----- cento-5.4 Linux 2.6.18- 1887 1202 946. 1678.9 2952.1 1473.7 1400.5 2425 1409. cento-5.4 Linux 2.6.18- 1337 1195 940. 1700.9 3027.9 1477.5 1400.7 2423 1368. cento-5.4 Linux 2.6.18- 781. 1098 864. 1715.8 3011.9 1202.8 1408.5 2190 1410. fedora-10 Linux 2.6.27. 1604 1181 923. 1541.7 2666.6 1447.8 1342.4 2429 1408. fedora-10 Linux 2.6.27. 1592 1782 925. 1590.7 2886.1 1432.6 1391.9 2430 1401. fedora-10 Linux 2.6.27. 1606 1170 926. 1550.8 2640.2 1432.3 1354.4 2429 1406. Memory latencies in nanoseconds - smaller is better (WARNING - may not be correct, check graphs) ------------------------------------------------------------------------------ Host OS Mhz L1 $ L2 $ Main mem Rand mem Guesses --------- ------------- --- ---- ---- -------- -------- ------- cento-5.4 Linux 2.6.18- 1797 1.6860 8.6140 99.3 159.2 cento-5.4 Linux 2.6.18- 1797 1.6870 8.6210 99.3 155.0 cento-5.4 Linux 2.6.18- 1797 1.6810 8.6140 106.0 155.9 fedora-10 Linux 2.6.27. 1791 1.6920 8.6470 99.5 153.2 fedora-10 Linux 2.6.27. 1791 1.6920 8.6500 99.5 153.5 fedora-10 Linux 2.6.27. 1791 1.6920 8.6500 99.5 154.4