Linux 2.6.8.1 - 2.6.14.4 perfomance question.

[Panayotis Tsiamis]

H aporia einai i exeis:

2 mixanakia me akribos idio hardware piso apo enan LVS load balancer
exontas to idio load, epita apo anabathmisi tou kernel se 2.6.14.4
parousizei apisteuta interrupts kai context switch!!!
Xerei kaneis ti trexei, an exei alaxei kapios scheduling algorithmos
i an prepei na epilexo kapio sigekrimeno algortithmo pou itan
se palioteres ekdoseis o default?


linux1:/etc/init.d# vmstat 2 5
procs -----------memory---------- ---swap-- -----io---- --system-- 
----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy 
id wa
 0  0  44176   4988  77212 389192    0    0     0     0    1     1 46  1 
50  4
 *0*  0  44216   4616  77136 389132    0   20     0   654    *0*     
*0*  4  3 84  9
 *0*  1  44356   5400  77232 388668   48   70    50  1528    *0*     
*0*  4  3 71 22
 *0*  0  44644   4992  76524 390420    0  146     0   146    *0*     
*0*  2  3 93  3
 *0*  0  44888   4744  76032 392060    2  122   234   760    *0*     
*0*  2  3 90  5
linux1:/etc/init.d# uname -a
Linux linux1.server.gr 2.6.8.1 #8 SMP Tue Apr 19 15:42:22 EEST 2005 i686 
GNU/Linux
15:36:18 up 217 days,  5:15,  2 users,  load average: 1.39, 1.61, 1.44

--

linux2:/var/log# vmstat 2 5
procs -----------memory---------- ---swap-- -----io---- --system-- 
----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy 
id wa
 1  0      0 774028 228240 623256    0    0     1    35  110    70  1  0 
98  1
 *0*  1      0 773796 228240 623732    0    0     0   292  *779*   
*613*  1  1 96  3
 *0*  1      0 772664 228240 624004    0    0     0   718 *2577*  
*2238*  4  1 82 14
 *1*  0      0 772160 228240 624412    0    0     0   532 *1225*  
*1262*  2  1 92  4
 *0*  0      0 771788 228240 624412    0    0     0   370  *931*   
*878*  2  1 96  0
linux2:/var/log# uname -a
Linux linux2.server.gr 2.6.14 #1 SMP PREEMPT Wed Dec 21 13:25:33 EET 
2005 i686 GNU/Linux
15:36:01 up 23:31,  2 users,  load average: 0.43, 0.39, 0.47