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GigaBit Ethernet to the Desktop - Server2 Configuration
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L M B E N C H 2 . 0 S U M M A R Y ------------------------------------ Basic system parameters ---------------------------------------------------- Host OS Description Mhz --------- ------------- ----------------------- ---- Server2 Linux 2.4.18- i686-pc-linux-gnu 2400 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 --------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ---- Server2 Linux 2.4.18- 2400 0.51 0.73 3.20 4.41 21.5 0.82 2.72 145. 419. 2372 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 --------- ------------- ----- ------ ------ ------ ------ ------- ------- Server2 Linux 2.4.18- 1.698 2.2325 4.8500 2.4100 19.6 3.92250 25.5 *Local* Communication latencies in microseconds - smaller is better ------------------------------------------------------------------- Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn --------- ------------- ----- ----- ---- ----- ----- ----- ----- ---- Server2 Linux 2.4.18- 1.698 7.546 12.3 15.1 24.7 18.0 31.7 45.2 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 --------- ------------- ------ ------ ------ ------ ------- ----- ----- Server2 Linux 2.4.18- 38.7 19.3 106. 35.6 404.5 1.150 14.5 *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 --------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- ----- Server2 Linux 2.4.18- 772. 542. 737. 1536.7 2265.3 559.2 594.3 2266 749.4 Memory latencies in nanoseconds - smaller is better (WARNING - may not be correct, check graphs) --------------------------------------------------- Host OS MHz L1 $ L2 $ Main mem Guesses --------- ------------- ---- ----- ------ -------- ------- Server2 Linux 2.4.18- 2400 0.834 7.6953 95.2
All results are in MB/S to the disk partition.
1 Drive 2 Drives
8KB Segments 2 Drives
16KB Segments 2 Drives
32KB Segments 2 Drives
64KB Segments I/O size Read Write Read Write Read Write Read Write Read Write 512 49.31 13.92 97.21 9.06 97.07 9.05 96.83 9.06 97.23 9.04 1024 49.31 14.07 97.96 73.96 97.46 73.68 97.42 73.97 97.37 74.03 2048 49.34 14.30 96.84 74.14 97.98 74.18 97.54 74.37 97.17 74.24 4096 49.31 52.11 97.74 74.20 97.27 74.26 97.30 74.37 97.47 74.29 8192 49.27 51.98 97.67 74.30 97.35 74.20 97.25 74.70 97.39 74.37 16384 49.34 52.22 97.28 74.14 98.07 74.40 97.65 74.40 97.68 74.36 32768 49.33 52.23 97.48 74.29 97.97 74.38 97.58 74.40 96.75 74.32 65536 49.26 51.96 97.35 74.12 97.53 74.27 95.47 74.18 95.98 74.32 131072 49.34 51.78 97.76 74.31 97.27 74.18 97.09 74.56 97.74 74.21 262144 49.31 52.18 97.34 74.14 94.52 74.25 97.73 74.30 97.65 74.27 524288 49.33 52.28 97.69 74.31 97.07 74.23 97.10 74.67 97.89 74.21 1048576 49.34 52.13 97.42 74.28 97.11 74.15 96.95 74.14 96.06 74.38 2097152 49.28 51.97 97.61 74.16 98.04 74.27 97.43 74.20 97.74 74.33
# ./stream_gcc
# Function Rate (MB/s) RMS time Min time Max time
Copy: 1543.0695 0.0104 0.0104 0.0107
Scale: 1547.2498 0.0104 0.0103 0.0104
Add: 1766.6581 0.0137 0.0136 0.0138
Triad: 1765.3569 0.0137 0.0136 0.0138
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