|
|
08-30-2011, 08:24 PM
|
|
Member
|
|
Join Date: Sep 2008
Posts: 20
|
|
Just sent an email wrt this post.
Regards
Quote:
Originally Posted by mistwang
Any one can reliably reproduce this problem with 4.1.4, please contact bug@litespeed..., we need to figure out what exactly causing this problem.
|
|
09-01-2011, 12:49 PM
|
|
LiteSpeed Staff
|
|
Join Date: May 2003
Location: New Jersey
Posts: 7,583
|
|
|
Please do force reinstall of 4.1.4, it should be addressed now.
Scan request body is enabled by default in 4.1.4, while it was disable in Apache and earlier release of LSWS.
|
09-04-2011, 10:46 PM
|
|
Senior Member
|
|
Join Date: May 2011
Posts: 63
|
|
Hello, I got big problem with my site. Below is my top -c, litespeed eats up a lot of CPU. Does it because someone hotlink my large static files? I usually got "Cannot display error after a few successful hit". This is very annoy. Does my bottneck is CPU Bound?
PHP Code:
top - 12:38:30 up 54 min, 1 user, load average: 2.39, 2.24, 2.10
Tasks: 75 total, 3 running, 72 sleeping, 0 stopped, 0 zombie
Cpu(s): 16.7%us, 32.5%sy, 0.0%ni, 50.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 786432k total, 409056k used, 377376k free, 0k buffers
Swap: 131072k total, 0k used, 131072k free, 0k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5171 apache 4 -19 11812 6500 1628 R 96.8 0.8 11:03.69 litespeed
3572 root 15 0 10196 2960 2368 R 1.0 0.4 0:13.60 sshd
1 root 15 0 2156 664 572 S 0.0 0.1 0:00.22 init
1114 root 15 -4 2260 556 344 S 0.0 0.1 0:00.00 udevd
1204 root 15 0 22448 568 468 S 0.0 0.1 0:00.57 brcm_iscsiuio
1413 root 16 0 1812 572 480 S 0.0 0.1 0:00.03 syslogd
1463 root 15 0 7204 1060 660 S 0.0 0.1 0:00.00 sshd
1472 root 18 0 2832 864 696 S 0.0 0.1 0:00.00 xinetd
1482 root 19 0 3708 1308 1132 S 0.0 0.2 0:00.01 mysqld_safe
1508 root 15 0 3248 432 324 S 0.0 0.1 0:00.12 da-popb4smtp
1543 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.66 mysqld
1572 ftp 15 0 2888 1068 524 S 0.0 0.1 0:00.05 proftpd
1592 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.08 mysqld
1593 mysql 20 0 200m 43m 3476 S 0.0 5.7 0:00.00 mysqld
1594 mysql 16 0 200m 43m 3476 S 0.0 5.7 0:00.00 mysqld
1595 mysql 17 0 200m 43m 3476 S 0.0 5.7 0:00.00 mysqld
1596 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.07 mysqld
1632 root 18 0 4488 1112 560 S 0.0 0.1 0:00.02 crond
3512 xfs 18 0 3216 1000 720 S 0.0 0.1 0:00.00 xfs
3549 root 18 0 5684 700 424 S 0.0 0.1 0:00.00 saslauthd
3550 root 18 0 5684 440 164 S 0.0 0.1 0:00.00 saslauthd
3559 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.51 mysqld
3560 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.56 mysqld
3561 mysql 16 0 200m 43m 3476 S 0.0 5.7 0:00.72 mysqld
3562 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.97 mysqld
3564 mysql 18 0 200m 43m 3476 S 0.0 5.7 0:00.94 mysqld
3565 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.26 mysqld
3566 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.05 mysqld
3567 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.17 mysqld
3568 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.22 mysqld
3576 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.19 mysqld
3579 root 20 0 2772 532 444 S 0.0 0.1 0:00.00 nc
3580 root 20 0 2772 540 448 S 0.0 0.1 0:00.00 nc
3584 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.99 mysqld
3585 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.29 mysqld
3586 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.10 mysqld
3588 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.81 mysqld
3590 mysql 18 0 200m 43m 3476 S 0.0 5.7 0:12.02 mysqld
3595 mysql 17 0 200m 43m 3476 S 0.0 5.7 0:01.14 mysqld
3597 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.94 mysqld
3599 mysql 18 0 200m 43m 3476 S 0.0 5.7 0:01.23 mysqld
3611 nobody 15 0 9176 1348 940 S 0.0 0.2 0:00.12 directadmin
3644 named 20 0 50344 3472 1904 S 0.0 0.4 0:00.03 named
3655 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.02 mysqld
3656 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.19 mysqld
3658 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.83 mysqld
3660 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.20 mysqld
3662 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.43 mysqld
3664 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.98 mysqld
3680 mysql 16 0 200m 43m 3476 S 0.0 5.7 0:00.92 mysqld
3683 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:00.85 mysqld
3684 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.03 mysqld
3685 mysql 16 0 200m 43m 3476 S 0.0 5.7 0:00.98 mysqld
3687 mysql 16 0 200m 43m 3476 S 0.0 5.7 0:00.86 mysqld
3689 mysql 15 0 200m 43m 3476 S 0.0 5.7 0:01.59 mysqld
3792 nobody 15 0 9176 572 164 S 0.0 0.1 0:00.00 directadmin
3877 nobody 15 0 9176 572 164 S 0.0 0.1 0:00.00 directadmin
3890 nobody 15 0 9176 572 164 S 0.0 0.1 0:00.00 directadmin
3930 nobody 15 0 9176 572 164 S 0.0 0.1 0:00.00 directadmin
3932 nobody 15 0 9176 572 164 S 0.0 0.1 0:00.00 directadmin
5169 root 0 -19 7328 2140 1472 S 0.0 0.3 0:00.11 litespeed
|
09-05-2011, 12:01 AM
|
|
LiteSpeed Staff
|
|
Join Date: Sep 2009
Posts: 2,216
|
|
|
please take a screenshot of real-time stats.
|
09-05-2011, 12:39 AM
|
|
Senior Member
|
|
Join Date: May 2011
Posts: 63
|
|
|
I have attached the the screenshot of Realtime Stats.
|
09-05-2011, 01:41 AM
|
|
LiteSpeed Staff
|
|
Join Date: Sep 2009
Posts: 2,216
|
|
|
the picture not clear
|
09-05-2011, 02:56 AM
|
|
Senior Member
|
|
Join Date: May 2011
Posts: 63
|
|
Quote:
Originally Posted by NiteWave
the picture not clear
|
Hi NiteWave,
It seems that the bottneck is disk I/O for streaming media. And another sites are trying to use my media url for streaming on their site, although i was enable Hot-Link Prevent. But a lot of "Not Found" requests still hits server and consume some resources. So, that's why one LiteSpeed instance was overload to serve a lot of media files and handle requests which come from outside. |
09-05-2011, 03:38 AM
|
|
LiteSpeed Staff
|
|
Join Date: Sep 2009
Posts: 2,216
|
|
|
but iowait showed in "top -c" is 0 -- 0.0%wa
|
09-05-2011, 04:19 AM
|
|
Senior Member
|
|
Join Date: May 2011
Posts: 63
|
|
I think vmstat will be better show the case. I used the 2-CPU trial license last 2 months (that's time i didn't know about disk I/O), and i found that 2-CPU license wasn't help much in my case, on a small VPS with a limited computing power. The fact shows that, i don't usually used up max 150 connections before the disk I/O occurs.
PHP Code:
[root@server ~]# vmstat 2
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
-
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 1 0 396148 0 0 0 0 82067 13873 0 5796 5 7 52 36 0
0 1 0 391088 0 0 0 0 812 12 0 3552 6 1 61 31 0
0 1 0 390188 0 0 0 0 1036 14 0 4167 5 2 59 33 0
1 0 0 392512 0 0 0 0 990 240 0 3874 4 7 64 26 0
0 1 0 395064 0 0 0 0 532 102 0 4299 10 17 57 16 0
0 1 0 395064 0 0 0 0 180 2 0 3017 1 1 50 48 0
1 0 0 395032 0 0 0 0 1048 4 0 4616 16 23 58 3 0
1 0 0 397088 0 0 0 0 462 2 0 3432 16 30 51 3 0
0 1 0 397120 0 0 0 0 574 2 0 2854 16 31 49 3 0
0 1 0 397120 0 0 0 0 124 0 0 2318 0 0 50 50 0
0 1 0 397120 0 0 0 0 126 0 0 2820 0 0 50 50 0
0 1 0 390324 0 0 0 0 354 30 0 3564 5 9 49 37 0
3 0 0 390300 0 0 0 0 564 4 0 4214 17 19 53 10 0
1 0 0 392792 0 0 0 0 252 2 0 3962 13 15 55 16 0
1 0 0 392528 0 0 0 0 630 4 0 3801 18 29 43 10 0
0 1 0 395060 0 0 0 0 128 2 0 4199 11 17 49 23 0
0 1 0 400608 0 0 0 0 376 0 0 3934 7 10 55 28 0
1 0 0 400880 0 0 0 0 508 230 0 5083 11 20 46 22 0
0 1 0 400880 0 0 0 0 638 96 0 3117 11 25 48 16 0
1 0 0 400832 0 0 0 0 678 4 0 3639 14 21 46 19 0
1 0 0 400816 0 0 0 0 364 2 0 3876 15 29 49 7 0
1 0 0 400912 0 0 0 0 576 4 0 3413 7 14 49 30 0
1 0 0 400912 0 0 0 0 650 2 0 3566 15 32 49 4 0
1 0 0 400636 0 0 0 0 106 2 0 3371 13 23 43 20 0
0 1 0 400636 0 0 0 0 284 0 0 3471 3 6 49 42 0
0 1 0 400068 0 0 0 0 626 6 0 4533 12 15 44 30 0
1 0 0 400068 0 0 0 0 388 8 0 3670 13 26 57 4 0
1 0 0 400100 0 0 0 0 602 212 0 3649 16 29 50 5 0
2 0 0 400356 0 0 0 0 512 46 0 4242 17 27 44 12 0
2 1 0 400356 0 0 0 0 514 4 0 4107 13 27 47 13 0
1 0 0 400356 0 0 0 0 1020 2 0 3757 15 25 48 12 0
0 1 0 400356 0 0 0 0 274 2 0 3537 12 27 50 11 0
0 1 0 400356 0 0 0 0 0 0 0 3662 0 0 50 50 0
3 0 0 400580 0 0 0 0 500 2 0 3670 11 14 39 37 0
1 0 0 401372 0 0 0 0 456 4 0 4747 12 24 54 10 0
1 0 0 401372 0 0 0 0 736 4 0 4539 8 16 49 27 0
0 2 0 400860 0 0 0 0 820 28 0 3996 9 16 48 27 0
1 0 0 400820 0 0 0 0 646 2 0 5343 13 22 42 22 0
0 1 0 400824 0 0 0 0 164 146 0 5081 9 20 48 23 0
2 0 0 400396 0 0 0 0 604 72 0 4614 8 11 51 30 0
1 0 0 401104 0 0 0 0 756 58 0 2687 6 11 49 34 0
0 1 0 400848 0 0 0 0 380 108 0 3217 7 14 47 32 0
1 0 0 400848 0 0 0 0 592 58 0 3217 4 7 50 39 0
0 1 0 400848 0 0 0 0 884 6 0 3152 7 13 51 29 0
1 0 0 400844 0 0 0 0 1060 4 0 4600 14 24 52 9 0
1 0 0 400876 0 0 0 0 636 2 0 2409 12 23 57 8 0
0 1 0 401108 0 0 0 0 828 30 0 2704 7 11 67 15 0
0 0 0 400836 0 0 0 0 378 2 0 3917 10 13 72 5 0
0 1 0 400840 0 0 0 0 722 6 0 2686 5 10 61 24 0
2 0 0 399864 0 0 0 0 908 106 0 2848 5 3 54 38 0
0 0 0 400312 0 0 0 0 470 56 0 2514 1 2 58 39 0
0 1 0 400336 0 0 0 0 858 60 0 2727 0 1 51 48 0
0 1 0 399704 0 0 0 0 778 42 0 3212 1 1 62 36 0
1 1 0 401352 0 0 0 0 1052 10 0 3638 5 5 50 41 0
1 0 0 401352 0 0 0 0 1428 6 0 3437 6 11 64 18 0
0 1 0 401096 0 0 0 0 828 4 0 2725 9 16 55 20 0
3 0 0 401104 0 0 0 0 1238 6 0 3028 7 11 51 31 0
1 0 0 400804 0 0 0 0 1174 2 0 3325 5 6 82 7 0
0 0 0 400804 0 0 0 0 804 2 0 3869 4 7 80 8 0
1 0 0 400780 0 0 0 0 1082 6 0 3391 7 14 60 19 0
0 0 0 400776 0 0 0 0 818 264 0 2885 5 9 61 25 0
0 0 0 401108 0 0 0 0 746 6 0 3629 4 8 84 5 0
0 0 0 401108 0 0 0 0 754 0 0 3314 0 0 97 2 0
|
09-05-2011, 04:55 AM
|
|
LiteSpeed Staff
|
|
Join Date: Sep 2009
Posts: 2,216
|
|
|
if so, you can enable AIO instead of sendfile to see if any improvement.
Server->Tuning->Use Asynchronized disk I/O (AIO)
|
| Thread Tools |
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -7. The time now is 10:29 PM.
|
|
