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    SubjectLower 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
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    PGP: Server - keyserver.pgp.com
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