[TYPO3-dev] Typo3 Performance

[Dmitry Dulepov]

Hi!

Nicolas Cohen wrote:
 > Hi i did another vmstat while using ab to test 100 requests with 10 
concurrent. As you can see memory stays ok, but cpu raises and goes down.

Now I see :) It does not look bad, though you have more time spent 
inside system than my server. Let's see. In the output below "us" is how 
much time (in %) system spent in user mode (doing your tasks), "sy" is 
system mode (swap, thread management, etc), "id" is idle.

 >  us sy id wa
 >  2 0 98  0
 >  92 8 0  0
 >  88 12  0  0
 >  86 14  0  0
 >  86 14  0  0
 >  58 7 35  0
 >  0 0 100  0

Oops!

 >  0 0 100  0

More "oops".

 >  0 0 100  0

3 seconds spending in system calls only???

 >  0 0 99  1

Now see mine:

us sy id wa
14  2 81  2
48  6 43  3
41  6 50  2
10  3 87  0
13  5 80  3
32  4 61  3
45  6 43  6
18  4 77  0
20  4 73  3
21  3 77  0

Average QPS that I have at the moment is 550, 35 apache rq/s with 86% if 
2xx and 3xx responses and system mostly idle.

Now let's do this. Execute "mysqladmin extended-status" and see value 
for "Threads-cached". I think it is 0.

By the way, ab shows this in your report:
 > Non-2xx responses:      98

Why so?

-- 
Dmitry Dulepov

Web: http://typo3bloke.net/
Skype: callto:liels_bugs

"It is our choices, that show what we truly are,
far more than our abilities." (A.P.W.B.D.)