Maximum Performance High Traffic Webserver

Discussion in 'HOWTO-Related Questions' started by FalkoL, Mar 19, 2007.

  1. FalkoL

    FalkoL New Member

    Hello,

    I'm working for a High traffic Website as a SystemAdmin. We recently put a new Server online and we are not really satisfied with the performance.

    Our configuration.
    Hardware:
    Dell PowerEdge 1950
    with Dual dual2core Xeon 5130, 2GB RAM and Raid 1 SAS HDD's

    Software:
    Debian Sarge, Kernel 2.6 custom for Dell PowerEdge 1950, Apache2 with SSL, Rewrite and deflate, Mysql 5, PHP4 with turck mmcache, VHCS2

    Some conf files what I change after reading the Maximum Performance Howto
    apache2.conf

    Timeout 10
    KeepAlive On
    MaxKeepAliveRequests 0
    KeepAliveTimeout 2
    <IfModule prefork.c>
    StartServers 8
    MinSpareServers 16
    MaxSpareServers 32
    ServerLimit 256
    MaxClients 256
    MaxRequestsPerChild 500
    </IfModule>
    HostnameLookups Off

    my.cnf
    key_buffer = 64M
    max_allowed_packet = 1M
    thread_stack = 128K
    thread_cache_size = 8
    table_cache =1024
    sort_buffer_size = 2M
    read_buffer_size = 2M
    read_rnd_buffer_size = 8M
    myisam_sort_buffer_size = 64M
    thread_concurrency = 8
    max_connections = 250
    interactive_timeout = 100
    wait_timeout=60
    connect_timeout=10
    #
    # * Query Cache Configuration
    #
    query_cache_limit = 2M
    query_cache_size = 128M
    query_cache_type = 1


    Our Problem
    Our website www.kiwicollection.com have a lot of Pic's and is pretty big. Right now every time more than 100 clients are at the same time on the Server the server load goes up to the sky and the server starting to swap and get slower.

    Have any body a Idea what I do wrong`???

    Thanks for helping.
    Falko
     
  2. till

    till Super Moderator

    Are the images in the database oer where thy served directly from filesystem?
     
  3. FalkoL

    FalkoL New Member

    The only think whats happend with the images is that the phars to the images is saved in the DB, to php get the phars to the images from mysql and posted as html to the page.


    I don't really know if that meens ther are in the database.

    The most load come from mysql and then apache.

    Here a little top cut out.
    top - 01:39:56 up 21:44, 1 user, load average: 0.30, 0.31, 0.70
    Tasks: 120 total, 3 running, 117 sleeping, 0 stopped, 0 zombie
    Cpu(s): 26.0% us, 3.7% sy, 0.0% ni, 69.7% id, 0.3% wa, 0.0% hi, 0.3% si
    Mem: 906568k total, 884640k used, 21928k free, 23524k buffers
    Swap: 1951888k total, 7280k used, 1944608k free, 600308k cached

    2612 mysql 15 0 391m 173m 5268 S 20.6 19.6 166:23.24 mysqld
    11243 www-data 15 0 50360 7088 4476 S 0.7 0.8 0:00.26 apache2
    11270 www-data 15 0 50452 6644 3988 S 0.7 0.7 0:00.12 apache2
    11230 www-data 16 0 50296 8072 5568 S 0.3 0.9 0:00.44 apache2
    11244 www-data 15 0 50452 8316 5608 S 0.3 0.9 0:00.27 apache2
    11256 www-data 15 0 50688 6824 4068 S 0.3 0.8 0:00.25 apache2
    11265 www-data 15 0 50392 7904 5304 S 0.3 0.9 0:00.20 apache2
    11275 www-data 15 0 50452 6656 4000 S 0.3 0.7 0:00.18 apache2
    11288 www-data 15 0 50800 7052 4212 S 0.3 0.8 0:00.10 apache2
    11289 www-data 15 0 50324 5792 3264 S 0.3 0.6 0:00.12 apache2
    11291 www-data 15 0 50360 7228 4660 S 0.3 0.8 0:00.09 apache2
    11306 www-data 15 0 50404 5528 3016 S 0.3 0.6 0:00.01 apache2
    11332 www-data 15 0 50224 6172 3752 S 0.3 0.7 0:00.01 apache2

    may it helps to make a better pic from my problem
     
  4. falko

    falko Super Moderator

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