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  1. #1

    Question Do I need more RAM? How many?

    Do I need more RAM? How many?

    and what is the "load average: 1.35, 0.77, 0.51" 's three numbers 1.35, 0.77, 0.51 mean?

    This is my 'top' stats.

    Thanks


    9:12am up 8 days, 23:14, 1 user, load average: 1.35, 0.77, 0.51
    690 processes: 689 sleeping, 1 running, 0 zombie, 0 stopped
    CPU states: 43.9% user, 9.1% system, 0.0% nice, 46.8% idle
    Mem: 770652K av, 766060K used, 4592K free, 184K shrd, 95424K buff
    Swap: 522072K av, 0K used, 522072K free 87384K cached

    PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
    17834 nobody 13 0 3284 3284 2612 S 6.3 0.4 0:17 httpd
    29134 nobody 14 0 3408 3408 2608 S 5.6 0.4 0:21 httpd
    9321 nobody 9 0 3132 3132 2604 S 5.6 0.4 0:19 httpd
    8279 nobody 10 0 3144 3144 2608 S 5.4 0.4 0:18 httpd
    8564 root 19 0 1432 1432 836 R 3.0 0.1 0:06 top
    10818 nobody 9 0 3324 3324 2608 S 0.9 0.4 0:20 httpd
    16000 nobody 9 0 3360 3360 2604 S 0.7 0.4 0:17 httpd
    16919 nobody 9 0 3324 3324 2616 S 0.7 0.4 0:21 httpd
    32332 nobody 9 0 3396 3396 2608 S 0.5 0.4 0:22 httpd
    21705 nobody 9 0 3076 3076 2616 S 0.5 0.3 0:18 httpd

  2. #2
    I don't think additional ram would help. You have not used any of your swap space, which indicates that you are not lacking for RAM. You are running a VERY high number of processes. Can you tell me what the box is used for and what the apache Max Clients is set to?
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  3. #3
    Also ps -ef | grep -c httpd
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  4. #4

    Re: Do I need more RAM? How many?

    Originally posted by tom chow
    and what is the "load average: 1.35, 0.77, 0.51" 's three numbers 1.35, 0.77, 0.51 mean?
    from: http://urchin.dc.inet.fi/~kerolasa/load.shtml
    A system's load is the number of processes that are ready to run, including ones currently running. This number is measured at regular, frequent intervals. The load average, therefore, is the average of this load number over a particular interval of time. There actually are three load averages measured over different periods of time: the most recent minute, the last five minutes, and the last 15 minutes.
    this has also been discussed before here: http://www.webhostingtalk.com/showth...threadid=77487

  5. #5
    Join Date
    Sep 2001
    Location
    Vancouver
    Posts
    746
    Ram and cpu look good but load is super high. Maybe I should lower the settings in httpd.conf I guess 2000 max cleints is a bit high for apache

    last pid: 1710; load averages: 46.00, 35.31, 26.958 up 0+03:10:07 12:54:31
    1103 processes:9 running, 1094 sleeping
    CPU states: 0.7% user, 0.0% nice, 18.8% system, 2.4% interrupt, 78.2% idle
    Mem: 716M Active, 323M Inact, 379M Wired, 108M Cache, 192M Buf, 484M Free
    Swap: 2048M Total, 2048M Free

    PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
    199 nobody 2 0 302M 269M RUN 0 2:22 0.24% 0.24% thttpd
    198 nobody 2 0 312M 278M kqread 1 2:21 0.24% 0.24% thttpd
    773 www 2 0 4520K 3760K sbwait 0 0:03 0.15% 0.15% httpd
    1028 www 2 0 5592K 3856K sbwait 1 0:03 0.10% 0.10% httpd
    564 www 2 0 4520K 3756K sbwait 1 0:03 0.10% 0.10% httpd
    1121 www 2 0 5612K 3836K sbwait 0 0:03 0.10% 0.10% httpd
    507 www 2 0 4520K 3756K accept 1 0:03 0.05% 0.05% httpd
    761 www 2 0 4520K 3756K sbwait 1 0:03 0.05% 0.05% httpd
    951 www 2 0 4520K 3756K accept 1 0:03 0.05% 0.05% httpd
    530 www 2 0 5604K 3832K sbwait 0 0:03 0.05% 0.05% httpd
    491 www 2 0 4520K 3756K accept 1 0:03 0.05% 0.05% httpd
    171 root 2 0 4428K 3676K select 1 0:10 0.00% 0.00% httpd
    1223 www 2 0 5492K 4416K sbwait 0 0:04 0.00% 0.00% httpd
    477 www 2 0 4520K 3756K accept 1 0:04 0.00% 0.00% httpd
    350 www 2 0 4520K 3760K sbwait 0 0:04 0.00% 0.00% httpd
    627 www 2 0 4520K 3756K accept 1 0:04 0.00% 0.00% httpd
    1196 www 2 0 4532K 3760K accept 1 0:04 0.00% 0.00% httpd
    376 www 2 0 4524K 3764K sbwait 1 0:04 0.00% 0.00% httpd
    266 www 2 0 4524K 3760K accept 1 0:04 0.00% 0.00% httpd
    233 www 2 0 4520K 3760K sbwait 1 0:03 0.00% 0.00% httpd
    440 www 2 0 4520K 3756K sbwait 1 0:03 0.00% 0.00% httpd
    1252 www 2 0 5600K 3832K sbwait 1 0:03 0.00% 0.00% httpd
    203 www 2 0 4524K 3760K accept 1 0:03 0.00% 0.00% httpd
    657 www 2 0 4520K 3756K accept 1 0:03 0.00% 0.00% httpd
    309 www 2 0 4520K 3760K accept 1 0:03 0.00% 0.00% httpd
    656 www 2 0 4520K 3760K sbwait 0 0:03 0.00% 0.00% httpd
    439 www 2 0 4520K 3756K accept 1 0:03 0.00% 0.00% httpd
    1101 www 2 0 4520K 3756K sbwait 1 0:03 0.00% 0.00% httpd
    271 www 2 0 4524K 3760K accept 1 0:03 0.00% 0.00% httpd
    487 www 2 0 4520K 3756K accept 1 0:03 0.00% 0.00% httpd
    279 www 2 0 4520K 3760K sbwait 1 0:03 0.00% 0.00% httpd
    1108 www 2 0 5532K 3864K sbwait 1 0:03 0.00% 0.00% httpd
    226 www 2 0 4520K 3760K accept 1 0:03 0.00% 0.00% httpd
    993 www 2 0 4520K 3760K sbwait 1 0:03 0.00% 0.00% httpd
    325 www 2 0 4520K 3760K sbwait 0 0:03 0.00% 0.00% httpd
    886 www 2 0 4532K 3760K accept 1 0:03 0.00% 0.00% httpd
    284 www 2 0 4520K 3760K accept 1 0:03 0.00% 0.00% httpd
    582 www 2 0 4520K 3760K accept 1 0:03 0.00% 0.00% httpd
    730 www 2 0 4520K 3756K sbwait 1 0:03 0.00% 0.00% httpd
    1257 www 2 0 4520K 3756K accept 1 0:03 0.00% 0.00% httpd
    431 www 2 0 5360K 3852K sbwait 0 0:03 0.00% 0.00% httpd
    463 www 2 0 4520K 3756K sbwait 1 0:03 0.00% 0.00% httpd
    434 www 2 0 4520K 3756K sbwait 0 0:03 0.00% 0.00% httpd
    293 www 2 0 4520K 3760K sbwait 1 0:03 0.00% 0.00% httpd
    240 www 2 0 4520K 3764K accept 1 0:03 0.00% 0.00% httpd
    844 www 2 0 4520K 3760K sbwait 1 0:03 0.00% 0.00% httpd
    947 www 2 0 4520K 3760K accept 1 0:03 0.00% 0.00% httpd
    1168 www 2 0 4520K 3756K accept 1 0:03 0.00% 0.00% httpd
    450 www 2 0 4520K 3760K accept 1 0:03 0.00% 0.00% httpd

  6. #6
    I would put max clients around 300
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  7. #7
    Join Date
    Sep 2001
    Location
    Vancouver
    Posts
    746
    300 might be way too low. People would get locked out

  8. #8
    Its not so much about how many people get locked out, it is about setting it so that the server gets as many connections open as it can handle
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  9. #9
    Join Date
    May 2002
    Posts
    190
    unless theres problems cluster just leave it how it is.. FreeBSD can hold its own hehe
    C Code. C code run. Run, code, run...
    Segmentation fault (core dumped).. aww sh!t

  10. #10
    Join Date
    Sep 2001
    Location
    Vancouver
    Posts
    746
    Yeah I got some advice from someone that runs high traffic servers. He said as long as it's not swaping and I have enough cpu idle things should be good.

    The high load scares me a bit though.

  11. #11
    Join Date
    Dec 2001
    Location
    Toronto, Ontario, Canada
    Posts
    6,896
    High loads scare everyone nothing to worry about as long as they system is always responsive, isn't digging heavily into the swap, and theres 30%+ idle cpu on average
    Myles Loosley-Millman - admin@prioritycolo.com
    Priority Colo Inc. - Affordable Colocation & Dedicated Servers.
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  12. #12
    Originally posted by dandanfirema
    I don't think additional ram would help. You have not used any of your swap space, which indicates that you are not lacking for RAM. You are running a VERY high number of processes. Can you tell me what the box is used for and what the apache Max Clients is set to?
    Webserver for banner exchange

    apache Max Clients is set to 650

  13. #13
    Originally posted by dandanfirema
    Also ps -ef | grep -c httpd
    652

  14. #14
    what are hardware spec?
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  15. #15
    Originally posted by dandanfirema
    what are hardware spec?
    PIII 850
    640M RAM
    18G SCSI

  16. #16
    Join Date
    May 2002
    Posts
    190
    that load isnt really bad its pretty good for that many processes actually
    C Code. C code run. Run, code, run...
    Segmentation fault (core dumped).. aww sh!t

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