Re: Re: Нагрузка на FreeBSD

["Дмитрий Леоненко" <dmitry.leonenko@xxxxxxxxx>]

newinst htdocs # mount
/dev/ad0s1a on / (ufs, local)
devfs on /dev (devfs, local)
/dev/ad0s1h on /home (ufs, local, soft-updates)
/dev/ad0s1d on /tmp (ufs, local, soft-updates)
/dev/ad0s1g on /usr (ufs, local, soft-updates)
/dev/ad0s1f on /var (ufs, local, soft-updates)
/dev/ad0s1e on /var/tmp (ufs, local, soft-updates)

newinst apache # mysqladmin extended-status | egrep Qcache
| Qcache_free_blocks                | 160       |
| Qcache_free_memory                | 92538824  |
| Qcache_hits                       | 5117      |
| Qcache_inserts                    | 7914      |
| Qcache_lowmem_prunes              | 0         |
| Qcache_not_cached                 | 242       |
| Qcache_queries_in_cache           | 2622      |
| Qcache_total_blocks               | 5524      |


При этом в top mysql зачастую кушает больше 40%

last pid: 64881;  load averages: 17.59,  9.76, 14.04
                                                                                                                 up 0+07:24:29  18:04:20
110 processes: 26 running, 83 sleeping, 1 zombie
CPU states: 95.1% user,  0.0%
 nice,  4.1% system,  0.7% interrupt,  0.0% idle
Mem: 321M Active, 1057M Inact, 240M Wired, 47M Cache, 112M Buf, 336M Free
Swap: 2048M Total, 54M Used, 1994M Free, 2% Inuse

  PID USERNAME    THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
64643 mysql        36 104    0   460M   119M RUN    0   3:57 39.55% mysqld
64860 www           1 105    0 46856K 13928K RUN    0   0:02  3.61% httpd
64660 www           1   4    0 49096K 18364K sbwait 0   0:20  
3.61% httpd
64817 www           1   4    0 46744K 13824K accept 0   0:05  3.42% httpd
64666 www           1 105    0 47032K 18148K RUN    0   0:21  3.42% httpd
64828 www           1 104    0 46984K 15132K RUN    0   0:03  
3.37% httpd
64827 www           1 105    0 47428K 15428K RUN    1   0:05  3.03% httpd
64826 www           1   4    0 46736K 14720K accept 0   0:05  3.03% httpd
64819 www           1 105    0 47064K 14780K RUN    0   0:06  
3.03% httpd
64657 www           1 105    0 47144K 20580K RUN    1   0:19  3.03% httpd
64664 www           1 104    0 47092K 20288K RUN    0   0:21  2.98% httpd
64656 www           1   4    0 48580K 21540K sbwait 0   0:20  
2.98% httpd
64830 www           1 104    0 47616K 14704K RUN    0   0:05  2.93% httpd
64820 www           1 104    0 46856K 14584K RUN    0   0:05  2.88% httpd
64812 www           1 105    0 46980K 15588K RUN    0   0:06  
2.88% httpd
64825 www           1   4    0 46808K 14384K sbwait 1   0:04  2.79% httpd
64665 www           1 105    0 47508K 19088K CPU1   1   0:21  2.73% httpd
64856 www           1 104    0 46876K 14220K RUN    0   0:02  
2.69% httpd
64818 www           1 104    0 46560K 13992K RUN    0   0:05  2.69% httpd
64862 www           1   4    0 46756K 13676K accept 0   0:02  2.69% httpd
64861 www           1   4    0 46452K 13276K accept 0   0:02  
2.54% httpd
64800 www           1 104    0 46496K 15052K RUN    0   0:06  2.39% httpd
64813 www           1   4    0 46724K 15244K sbwait 0   0:04  2.30% httpd
64658 www           1   4    0 47016K 18964K sbwait 0   0:20  
2.29% httpd
64655 www           1   4    0 46992K 18740K sbwait 1   0:17  2.29% httpd
64829 www           1   4    0 46420K 13720K sbwait 0   0:05  2.20% httpd
64823 www           1 103    0 46808K 14548K RUN    0   0:05  
2.20% httpd
64822 www           1 103    0 46596K 14180K RUN    0   0:05  2.20% httpd
64670 www           1 102    0 46820K 17980K RUN    0   0:15  2.20% httpd
64821 www           1   4    0 46452K 14108K accept 0   0:03  
2.15% httpd
64662 www           1   4    0 50548K 21724K accept 0   0:25  2.15% httpd
64663 www           1   4    0 46796K 18348K sbwait 1   0:22  2.05% httpd
64659 www           1 104    0 47728K 19764K RUN    0   0:17  
2.05% httpd
64654 www           1   4    0 46636K 16992K sbwait 1   0:19  1.95% httpd
64783 www           1   4    0 47380K 16304K sbwait 0   0:10  1.95% httpd
64814 www           1 102    0 46592K 14296K RUN    0   0:05  
1.76% httpd
64848 www           1   4    0 46764K 14548K accept 0   0:01  1.72% httpd
64671 www           1   4    0 46728K 16468K sbwait 0   0:19  1.61% httpd
44361 melco         1 101    0 10068K  5604K RUN    0   2:39  
1.46% sshd
39313 www           1   4    0  5448K  2844K kqread 0   1:50  0.34% nginx

12.01.07, Igor Sysoev < is@xxxxxxxxxxxxx> написал(а):

On Fri, 12 Jan 2007, [UTF-8] Дмитрий Леоненко wrote:

> MaxRequestsPerChild  100
>
> newinst htdocs # pgrep httpd | wc -l
>      99
> newinst htdocs # top
>
> last pid: 55269;  load averages: 70.58, 52.99, 49.17
> up 0+05:51:52  16:31:43
> 199 processes: 70 running, 128 sleeping, 1 zombie
> CPU states: 90.1% user,  0.9% nice,  8.5% system,  0.5% interrupt,  0.0%idle
> Mem: 791M Active, 438M Inact, 226M Wired, 2852K Cache, 112M Buf, 543M Free
> Swap: 2048M Total, 86M Used, 1962M Free, 4% Inuse

Судя по топу, дело не в системе - процессы едят своё время - 90.1% user.
Возможно, на Линуксе использовался php-акселертор, а здесь - нет.

Кроме того, смущает состояния ufs у некоторых httpd. Что пoзывает

mount

?

>  PID USERNAME    THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
>  602 mysql        63   4    0   121M 47760K sbwait 0  57:40 25.83% mysqld
> 55025 www           1 118    0 19432K 15492K RUN    1   0:03   2.54% httpd
> 55017 www           1 118    0 17240K 13724K RUN    0   0:02  2.39% httpd
> 54961 www           1 118    0 16912K 13424K RUN    0   0:03  2.15% httpd
> 54997 www           1 119    0 19372K 15456K RUN    0   0:03   2.10% httpd
> 54981 www           1 120    0 17816K 14404K RUN    1   0:04  2.00% httpd
> 54978 www           1 120    0 18760K 14780K RUN    1   0:04  1.95% httpd
> 55014 www           1 120    0 18052K 14644K RUN    1   0:04   1.91% httpd
> 54974 www           1 120    0 18048K 14552K RUN    1   0:04  1.91% httpd
> 54971 www           1 119    0 17868K 14476K RUN    0   0:04  1.86% httpd
> 54984 www           1 120    0 17760K 14248K RUN    0   0:04   1.86% httpd
> 55002 www           1  -4    0 17232K 13724K ufs    0   0:03  1.86% httpd
> 54991 www           1 120    0 18164K 14656K RUN    1   0:03  1.86% httpd
> 54976 www           1 118    0 18052K 14540K RUN    0   0:03   1.81% httpd
> 55023 www           1 120    0 17840K 14324K RUN    1   0:03  1.71% httpd
> 55031 www           1 120    0 17456K 13944K RUN    0   0:03  1.66% httpd
> 55030 www           1 118    0 17500K 13944K RUN    0   0:01   1.61% httpd
> 55026 www           1 119    0 17124K 13708K RUN    0   0:01  1.56% httpd
> 55028 www           1 119    0 17536K 14120K RUN    0   0:04  1.52% httpd
> 55008 www           1 117    0 18208K 14792K RUN    0   0:03   1.51% httpd
> 54951 www           1  -4    0 17024K 13628K ufs    1   0:03  1.51% httpd
> 55021 www           1 119    0 17460K 13944K RUN    0   0:02  1.47% httpd
> 54947 www           1 117    0 17724K 14044K RUN    0   0:04   1.47% httpd
> 55007 www           1 120    0 18744K 14636K RUN    0   0:02  1.42% httpd
> 54950 www           1 119    0 17148K 13752K RUN    0   0:02  1.42% httpd
> 54983 www           1 119    0 17996K 14608K RUN    1   0:03   1.37% httpd
> 54954 www           1 120    0 16636K 13116K RUN    1   0:05  1.37% httpd
> 54959 www           1 119    0 18136K 14560K RUN    1   0:04  1.37% httpd
> 54955 www           1 119    0 17576K 14068K RUN    0   0:04   1.37% httpd
> 54952 www           1 118    0 18032K 14620K RUN    1   0:04  1.32% httpd
> 54979 www           1 116    0 17660K 14156K RUN    0   0:03  1.27% httpd
> 54995 www           1  -4    0 17352K 13848K ufs    0   0:03   1.27% httpd
> 54957 www           1 116    0 17628K 14116K RUN    0   0:03  1.27% httpd
> 44361 melco         1 112    0 10068K  5256K select 1   1:15  1.27% sshd
> 54970 www           1 116    0 17764K 14244K RUN    0   0:03   1.22% httpd
> 55036 www           1 117    0 17292K 13880K CPU1   1   0:03  1.17% httpd
> 54989 www           1  -4    0 17104K 13696K ufs    0   0:03  1.17% httpd
> 55009 www           1 117    0 16956K 13420K RUN    1   0:03   1.17% httpd
> 55040 www           1 118    0 17676K 14160K RUN    0   0:01  1.12% httpd
> 55100 www           1 119    0 17680K 14168K RUN    1   0:01  1.08% httpd
> 55032 www           1  -4    0 17440K 14024K ufs    0   0:01   1.08% httpd
> 55019 www           1 116    0 17148K 13644K RUN    0   0:03  1.03% httpd
> 55018 www           1 117    0 18900K 14900K RUN    0   0:01  0.98% httpd
> 54990 www           1  -4    0 17596K 14092K ufs    1   0:03   0.98% httpd
> 55004 www           1 116    0 18132K 14576K RUN    0   0:03  0.98% httpd


Игорь Сысоев
http://sysoev.ru