DDos and hardware to work well with Litespeed

[mistwang]

I suggest you try LiteSpeed before upgrading the server. If CPU is not 100% utilized during peak hour, upgrade to Quad Xeon may not help. check the 'top' output.

[ASTRAPI]

Ok i will try to read how to install it at wiki but as i am not expert i am not sure if i try it ...

Thank you

[ASTRAPI]

Does this mean that my server is 100% utilized?

2280 mysql 21 6 146m 105m 3864 S 118.4 3.2 928:32.47 mysqld
14756 nobody 20 4 31908 15m 2856 S 41.4 0.5 0:00.60 httpd

Thank you

[auser]

you have 2 core(Xeon dual core), the full load is 200%. So in total, the CPU is not full loaded. but

2280 mysql 21 6 146m 105m 3864 S 118.4 3.2 928:32.47 mysqld

mysqld has exceeded 100%(118.4%) so apparently the bottleneck is at mysqld process.

p.s., what's upper part of "top" output?

[ASTRAPI]

I didn't keep the rest but you can check my previous output :

2280 mysql 21 6 126m 72m 3704 S 149.3 2.2 121:12.99 mysqld
1621 root 0 -20 0 0 0 R 11.4 0.0 1:47.02 loop0
20315 nobody 20 4 32024 15m 2876 S 2.3 0.5 0:01.69 httpd
20933 nobody 19 4 30136 14m 2844 S 2.3 0.4 0:00.45 httpd
20987 nobody 20 4 32692 16m 2848 S 2.3 0.5 0:00.51 httpd
20923 nobody 20 4 29076 13m 2840 S 2.0 0.4 0:00.56 httpd
21378 nobody 20 4 31520 15m 2772 S 2.0 0.5 0:00.11 httpd
20968 nobody 19 4 25044 9.8m 2844 S 1.6 0.3 0:00.38 httpd
20997 root 15 0 0 0 0 S 1.6 0.0 0:02.50 pdflush
21392 nobody 19 4 30020 14m 2708 S 1.6 0.4 0:00.05 httpd
384 root 10 -5 0 0 0 S 1.3 0.0 0:09.99 kjournald
21190 nobody 19 4 28300 12m 2844 S 1.3 0.4 0:00.22 httpd
21398 nobody 27 4 28648 12m 2716 S 1.3 0.4 0:00.04 httpd
21401 nobody 29 4 28648 12m 2740 S 1.3 0.4 0:00.04 httpd
19875 nobody 20 4 28336 12m 2844 S 1.0 0.4 0:01.43 httpd
20945 nobody 19 4 28252 12m 2796 S 1.0 0.4 0:00.32 httpd
20964 nobody 19 4 29884 14m 2848 S 1.0 0.4 0:00.90 httpd
20974 nobody 19 4 28252 12m 2836 S 1.0 0.4 0:00.52 httpd
21359 nobody 19 4 29288 13m 2828 S 1.0 0.4 0:00.13 httpd
21402 nobody 29 4 27896 12m 2708 S 1.0 0.4 0:00.03 httpd
21404 nobody 29 4 27892 11m 2712 R 1.0 0.4 0:00.03 httpd
1622 root 12 -5 0 0 0 S 0.7 0.0 0:08.14 kjournald
21189 nobody 19 4 30792 15m 2836 S 0.7 0.5 0:00.28 httpd
21376 nobody 19 4 24456 9372 2760 S 0.7 0.3 0:00.07 httpd
2670 root 29 4 23652 9272 3836 S 0.3 0.3 0:01.68 httpd
20242 nobody 20 4 29308 13m 2848 S 0.3 0.4 0:00.98 httpd
20299 nobody 19 4 29432 14m 3172 S 0.3 0.4 0:00.95 httpd
20873 nobody 19 4 29364 13m 2844 S 0.3 0.4 0:00.67 httpd
20887 nobody 20 4 32972 16m 2796 S 0.3 0.5 0:00.54 httpd
20941 nobody 19 4 30680 15m 2844 S 0.3 0.5 0:00.76 httpd
20952 nobody 19 4 29356 14m 3284 S 0.3 0.4 0:00.42 httpd
20953 nobody 19 4 29248 13m 2796 S 0.3 0.4 0:00.36 httpd
20982 nobody 19 4 30108 14m 2844 S 0.3 0.4 0:00.56 httpd
21184 nobody 19 4 24404 9404 2836 S 0.3 0.3 0:00.13 httpd
21185 nobody 19 4 26132 10m 2844 S 0.3 0.3 0:00.36 httpd
21381 nobody 20 4 29160 13m 2732 S 0.3 0.4 0:00.05 httpd
21384 root 15 0 2328 1096 796 R 0.3 0.0 0:00.01 top
1 root 15 0 2064 664 572 S 0.0 0.0 0:00.59 init
2 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/1
6 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1
7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
8 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/0
9 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/1
10 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
11 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread
15 root 10 -5 0 0 0 S 0.0 0.0 0:00.12 kblockd/0
16 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/1
17 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid
88 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/0
89 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/1

Thank you

So i must check for sql optimazation...

Any tips?

[anewday]

Mysqltuner is a very good tool. Make sure mysql is running for at least 48 hours before using it.

[ASTRAPI]

I just don't get it ....

Today without to do any settings is working very very fast and i was try to check the output from the top command to check how is going the cpu.

And from the 100 - 120 as i get when my forum is very slow it was 187%.

How is this possible ?

Thank you


Also does the speed from 100 to 1.000 Mbit will help?