Why is my pipe throughput so low?
The server is a P4 3.0GHZ HT, 2GB of DDR400 ram, two 80GB SATA 150 hard drives, running hardware Raid 1 (3ware raid card)BYTE UNIX Benchmarks (Version 4.1-wht)
System -- Linux ************.com 2.6.***-grsec #1 SMP Wed Mar 15 18:56:23 EST 2006 i686 i686 i386 GNU/Linux
/dev/sda5 71781532 1649244 66485940 3% /
Start Benchmark Run: Sat Mar 18 02:04:34 EST 2006
02:04:34 up 2 days, 2:45, 1 user, load average: 0.04, 0.03, 0.00
End Benchmark Run: Sat Mar 18 02:15:10 EST 2006
02:15:10 up 2 days, 2:55, 1 user, load average: 12.79, 5.96, 2.70
INDEX VALUES
TEST BASELINE RESULT INDEX
Dhrystone 2 using register variables 376783.7 4943867.6 131.2
Double-Precision Whetstone 83.1 822.8 99.0
Execl Throughput 188.3 2070.9 110.0
File Copy 1024 bufsize 2000 maxblocks 2672.0 67617.0 253.1
File Copy 256 bufsize 500 maxblocks 1077.0 19352.0 179.7
File Read 4096 bufsize 8000 maxblocks 15382.0 604715.0 393.1
Pipe-based Context Switching 15448.6 126612.8 82.0
Pipe Throughput 111814.6 457075.9 40.9
Process Creation 569.3 6270.9 110.2
Shell Scripts (8 concurrent) 44.8 421.9 94.2
System Call Overhead 114433.5 1434357.7 125.3
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FINAL SCORE 124.5
