i686-pc-linux-gnu: no data for Memory load parallelism i686-pc-linux-gnu: lat_mem_rand = 158.397 i686-pc-linux-gnu: no data for Memory load parallelism i686-pc-linux-gnu: lat_mem_rand = 158.326 i686-pc-linux-gnu: no data for Memory load parallelism i686-pc-linux-gnu: lat_mem_rand = 158.572 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 --------- ------------- ----------------------- ---- ----- ----- ------ ---- pres Linux 2.6.17- i686-pc-linux-gnu 3000 1 pres Linux 2.6.17- i686-pc-linux-gnu 3000 1 pres Linux 2.6.17- i686-pc-linux-gnu 3000 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 --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- pres Linux 2.6.17- 3000 0.30 0.46 2.20 3.20 6.52 0.75 2.35 144. 435. 1575 pres Linux 2.6.17- 3000 0.30 0.46 2.22 3.20 6.53 0.76 2.37 147. 437. 1578 pres Linux 2.6.17- 3000 0.31 0.46 2.21 3.17 6.64 0.76 2.33 146. 436. 1580 Basic integer operations - times in nanoseconds - smaller is better ------------------------------------------------------------------- Host OS intgr intgr intgr intgr intgr bit add mul div mod --------- ------------- ------ ------ ------ ------ ------ pres Linux 2.6.17- 0.3300 0.3300 3.3400 20.7 28.0 pres Linux 2.6.17- 0.3300 0.3300 3.3400 20.7 28.0 pres Linux 2.6.17- 0.3300 0.3300 3.3400 20.7 27.9 Basic uint64 operations - times in nanoseconds - smaller is better ------------------------------------------------------------------ Host OS int64 int64 int64 int64 int64 bit add mul div mod --------- ------------- ------ ------ ------ ------ ------ pres Linux 2.6.17- pres Linux 2.6.17- pres Linux 2.6.17- Basic float operations - times in nanoseconds - smaller is better ----------------------------------------------------------------- Host OS float float float float add mul div bogo --------- ------------- ------ ------ ------ ------ pres Linux 2.6.17- 2.0000 2.6700 15.1 15.0 pres Linux 2.6.17- 2.0000 2.6700 15.1 15.0 pres Linux 2.6.17- 2.0000 2.6700 15.1 15.0 Basic double operations - times in nanoseconds - smaller is better ------------------------------------------------------------------ Host OS double double double double add mul div bogo --------- ------------- ------ ------ ------ ------ pres Linux 2.6.17- 2.0000 2.6700 15.1 15.0 pres Linux 2.6.17- 2.0000 2.6700 15.1 15.0 pres Linux 2.6.17- 2.0000 2.6700 15.1 15.0 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 --------- ------------- ------ ------ ------ ------ ------ ------- ------- pres Linux 2.6.17- 3.1400 3.2100 3.4800 3.8300 4.0900 3.86000 6.50000 pres Linux 2.6.17- 3.1100 3.2300 3.5200 3.8800 4.3200 3.90000 6.81000 pres Linux 2.6.17- 3.1500 3.2100 3.5500 3.8600 4.1700 3.87000 6.96000 *Local* Communication latencies in microseconds - smaller is better --------------------------------------------------------------------- Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn --------- ------------- ----- ----- ---- ----- ----- ----- ----- ---- pres Linux 2.6.17- 3.140 10.1 15.1 17.2 25.9 20.4 30.4 48. pres Linux 2.6.17- 3.110 10.2 15.1 17.2 25.6 20.3 30.9 48. pres Linux 2.6.17- 3.150 10.1 15.1 17.1 25.3 20.2 31.0 48. *Remote* Communication latencies in microseconds - smaller is better --------------------------------------------------------------------- Host OS UDP RPC/ TCP RPC/ TCP UDP TCP conn --------- ------------- ----- ----- ----- ----- ---- pres Linux 2.6.17- pres Linux 2.6.17- pres Linux 2.6.17- 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 --------- ------------- ------ ------ ------ ------ ------- ----- ------- ----- pres Linux 2.6.17- 15.8 12.5 51.5 26.0 164.0 0.699 1.45190 2.849 pres Linux 2.6.17- 15.9 12.5 51.8 26.3 165.0 0.700 1.45070 2.832 pres Linux 2.6.17- 15.8 12.5 51.5 26.3 164.0 0.668 1.44950 2.822 *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 --------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- ----- pres Linux 2.6.17- 1591 2641 1396 1805.9 3468.9 1192.6 1170.6 3448 1675. pres Linux 2.6.17- 1628 2575 1390 1803.6 3469.9 1191.2 1178.0 3447 1674. pres Linux 2.6.17- 1636 2592 1411 1803.6 3465.3 1191.4 1171.8 3447 1676. Memory latencies in nanoseconds - smaller is better (WARNING - may not be correct, check graphs) ------------------------------------------------------------------------------ Host OS Mhz L1 $ L2 $ Main mem Rand mem Guesses --------- ------------- --- ---- ---- -------- -------- ------- pres Linux 2.6.17- 3000 1.3350 9.2660 55.2 158.4 pres Linux 2.6.17- 3000 1.3340 9.2510 55.2 158.3 pres Linux 2.6.17- 3000 1.3340 9.2980 55.3 158.6