[Comm] Запись на жесткий диск - ядро 2.6 хуже, чем 2.4 ???
vx 8400
vx8400 на gmail.com
Вс Ноя 7 17:47:08 UTC 2010
7 ноября 2010 г. 17:38 vx 8400:
> Помню, что разница на блочной записи на ext2 (обычный раздел обычного
> IDE диска) с 2.4.31 и 2.6.15 была <~10%.
Соврал: 2.4.31 -> 2.6.25.
Табличка с unixbench в прицепе.
----------- следующая часть -----------
BYTE UNIX Benchmarks (Version 5.1.2)
System: compas: GNU/Linux
Machine: i686 (unknown)
Language: en_US.utf8 (charmap="KOI8-R", collate="KOI8-R")
CPU 0: Pentium III (Coppermine) (1605.6 bogomips)
MMX, Physical Address Ext, SYSENTER/SYSEXIT
------------------------------------------------------------------------
2.4.31 2.6.25-std-def-alt8.M41.4
------------------------------------------------------------------------
Dhrystone 2 using register variables 1467230.4 lps (10.0 s, 7 samples) 1363184.4 lps (10.0 s, 7 samples)
Double-Precision Whetstone 454.4 MWIPS (10.0 s, 7 samples) 587.5 MWIPS (10.1 s, 7 samples)
Execl Throughput 1885.9 lps (29.9 s, 2 samples) 398.0 lps (29.8 s, 2 samples)
File Copy 1024 bufsize 2000 maxblocks 70456.1 KBps (30.0 s, 2 samples) 74986.0 KBps (30.0 s, 2 samples)
File Copy 256 bufsize 500 maxblocks 29960.4 KBps (30.0 s, 2 samples) 33419.7 KBps (30.0 s, 2 samples)
File Copy 4096 bufsize 8000 maxblocks 102488.0 KBps (30.0 s, 2 samples) 106400.0 KBps (30.0 s, 2 samples)
Pipe Throughput 469376.6 lps (10.0 s, 7 samples) 292535.0 lps (10.0 s, 7 samples)
Pipe-based Context Switching 209730.4 lps (10.0 s, 7 samples) 56059.3 lps (10.0 s, 7 samples)
Process Creation 10652.5 lps (30.0 s, 2 samples) 2501.7 lps (30.0 s, 2 samples)
Shell Scripts (1 concurrent) 417.9 lpm (60.1 s, 2 samples) 266.2 lpm (60.2 s, 2 samples)
Shell Scripts (8 concurrent) 56.3 lpm (60.8 s, 2 samples) 33.9 lpm (60.5 s, 2 samples)
System Call Overhead 419920.4 lps (10.0 s, 7 samples) 469106.8 lps (10.0 s, 7 samples)
System Benchmarks Index Values BASELINE RESULT INDEX BASELINE RESULT INDEX
Dhrystone 2 using register variables 116700.0 1467230.4 125.7 116700.0 1363184.4 116.8
Double-Precision Whetstone 55.0 454.4 82.6 55.0 587.5 106.8
Execl Throughput 43.0 1885.9 438.6 43.0 398.0 92.6
File Copy 1024 bufsize 2000 maxblocks 3960.0 70456.1 177.9 3960.0 74986.0 189.4
File Copy 256 bufsize 500 maxblocks 1655.0 29960.4 181.0 1655.0 33419.7 201.9
File Copy 4096 bufsize 8000 maxblocks 5800.0 102488.0 176.7 5800.0 106400.0 183.4
Pipe Throughput 12440.0 469376.6 377.3 12440.0 292535.0 235.2
Pipe-based Context Switching 4000.0 209730.4 524.3 4000.0 56059.3 140.1
Process Creation 126.0 10652.5 845.4 126.0 2501.7 198.5
Shell Scripts (1 concurrent) 42.4 417.9 98.6 42.4 266.2 62.8
Shell Scripts (8 concurrent) 6.0 56.3 93.8 6.0 33.9 56.6
System Call Overhead 15000.0 419920.4 279.9 15000.0 469106.8 312.7
======== ========
System Benchmarks Index Score 217.5 140.4
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