Messages in this thread | | | Date | Thu, 05 Feb 2004 23:16:20 +0000 | From | Andrei Mikhailovsky <> | Subject | Lower performance in 2.6.2 compared to 2.4.22 |
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Hello,
Just finished tests using Byte benchmark (available from unix.com).
2.4.22 has better results in both benchmarks. Here are results:
- ---Byte benchmark on 2.6.2 BEGIN--- ~ BYTE UNIX Benchmarks (Version 3.11) ~ System -- Linux (none) 2.6.2 #1 Wed Feb 4 14:32:05 GMT 2004 i686 GNU/Linux ~ Start Benchmark Run: Thu Feb 5 19:41:01 GMT 2004 ~ 0 interactive users. Dhrystone 2 without register variables 4824680.0 lps (10 secs, 6 samples) Dhrystone 2 using register variables 4823649.9 lps (10 secs, 6 samples) Arithmetic Test (type = arithoh) 9008352.2 lps (10 secs, 6 samples) Arithmetic Test (type = register) 388928.1 lps (10 secs, 6 samples) Arithmetic Test (type = short) 373900.1 lps (10 secs, 6 samples) Arithmetic Test (type = int) 388868.2 lps (10 secs, 6 samples) Arithmetic Test (type = long) 388872.5 lps (10 secs, 6 samples) Arithmetic Test (type = float) 736101.7 lps (10 secs, 6 samples) Arithmetic Test (type = double) 736099.0 lps (10 secs, 6 samples) System Call Overhead Test 1173978.8 lps (10 secs, 6 samples) Pipe Throughput Test 1196881.4 lps (10 secs, 6 samples) Pipe-based Context Switching Test 400114.1 lps (10 secs, 6 samples) Process Creation Test 15473.9 lps (10 secs, 6 samples) Execl Throughput Test 3933.9 lps (9 secs, 6 samples) File Read (10 seconds) 3618620.0 KBps (10 secs, 6 samples) File Write (10 seconds) 324411.0 KBps (10 secs, 6 samples) File Copy (10 seconds) 62389.0 KBps (10 secs, 6 samples) File I/O no measured results C Compiler Test no measured results Shell scripts (1 concurrent) 4453.4 lpm (60 secs, 3 samples) Shell scripts (2 concurrent) 2368.0 lpm (60 secs, 3 samples) Shell scripts (4 concurrent) 1225.7 lpm (60 secs, 3 samples) Shell scripts (8 concurrent) 615.3 lpm (60 secs, 3 samples) Dc: sqrt(2) to 99 decimal places 149692.7 lpm (60 secs, 6 samples) Recursion Test--Tower of Hanoi 76170.8 lps (10 secs, 6 samples) ~ INDEX VALUES TEST BASELINE RESULT INDEX
Arithmetic Test (type = double) 2541.7 736099.0 289.6 Dhrystone 2 without register variables 22366.3 4824680.0 215.7 Execl Throughput Test 16.5 3933.9 238.4 Pipe-based Context Switching Test 1318.5 400114.1 303.5 Shell scripts (8 concurrent) 4.0 615.3 153.8 ~ ========= ~ SUM of 5 items 1201.0 ~ AVERAGE 240.2
- ---Byte benchmark on 2.6.2 END---
- ---Byte benchmark on 2.4.22 BEGIN--- ~ BYTE UNIX Benchmarks (Version 3.11) ~ System -- Linux (none) 2.4.22-bk36 #2 Fri Oct 17 14:30:25 BST 2003 i686 GNU/Linux ~ Start Benchmark Run: Thu Feb 5 21:05:04 GMT 2004 ~ 0 interactive users. Dhrystone 2 without register variables 4744521.8 lps (10 secs, 6 samples) Dhrystone 2 using register variables 4746498.5 lps (10 secs, 6 samples) Arithmetic Test (type = arithoh) 9065795.0 lps (10 secs, 6 samples) Arithmetic Test (type = register) 391434.4 lps (10 secs, 6 samples) Arithmetic Test (type = short) 376179.1 lps (10 secs, 6 samples) Arithmetic Test (type = int) 391471.6 lps (10 secs, 6 samples) Arithmetic Test (type = long) 391469.3 lps (10 secs, 6 samples) Arithmetic Test (type = float) 740918.6 lps (10 secs, 6 samples) Arithmetic Test (type = double) 741556.2 lps (10 secs, 6 samples) System Call Overhead Test 1194144.8 lps (10 secs, 6 samples) Pipe Throughput Test 1491956.9 lps (10 secs, 6 samples) Pipe-based Context Switching Test 556854.3 lps (10 secs, 6 samples) Process Creation Test 19275.1 lps (10 secs, 6 samples) Execl Throughput Test 4244.6 lps (10 secs, 6 samples) File Read (10 seconds) 4435520.0 KBps (10 secs, 6 samples) File Write (10 seconds) 243964.0 KBps (10 secs, 6 samples) File Copy (10 seconds) 41601.0 KBps (10 secs, 6 samples) File I/O no measured results C Compiler Test 1077.6 lpm (60 secs, 3 samples) Shell scripts (1 concurrent) 4950.8 lpm (60 secs, 3 samples) Shell scripts (2 concurrent) 2641.4 lpm (60 secs, 3 samples) Shell scripts (4 concurrent) 1357.8 lpm (60 secs, 3 samples) Shell scripts (8 concurrent) 692.1 lpm (60 secs, 1 samples) Dc: sqrt(2) to 99 decimal places 186413.3 lpm (60 secs, 6 samples) Recursion Test--Tower of Hanoi 76521.6 lps (10 secs, 6 samples) ~ INDEX VALUES TEST BASELINE RESULT INDEX
Arithmetic Test (type = double) 2541.7 741556.2 291.8 Dhrystone 2 without register variables 22366.3 4744521.8 212.1 Execl Throughput Test 16.5 4244.6 257.2 Pipe-based Context Switching Test 1318.5 556854.3 422.3 Shell scripts (8 concurrent) 4.0 692.1 173.0 ~ ========= ~ SUM of 5 items 1356.5 ~ AVERAGE 271.3
- ---Byte benchmark on 2.4.22 END---
Has anyone experienced similar results? or is it just me?
By the way, I have an the following specs: AMD Barton 2500+ overclocked to 1968.145Mhz FSB 179Mhz, 512Mb DDR PC2700, Hitachi 40Gb HD (HDS722540VLAT20), Sis746FX chipset ASRock K7S8X
- -- Andrei Mikhailovsky Arhont Ltd
Web: http://www.arhont.com Tel: +44 (0)870 4431337 Fax: +44 (0)1454 201200 PGP: Key ID - 0xFF67A4F4 PGP: Server - keyserver.pgp.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Debian - http://enigmail.mozdev.org
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