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Server tuning/optimization request

Discussion in 'Workarounds and Optimization' started by dethfire, Oct 2, 2014.

  1. dethfire

    dethfire Registered

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    Hi all! Looking for some suggestions on how I can best tune Apache and MySQL etc for my needs. I run a very large Xenforo forum.

    CentOS / 6.3-64
    Dual Xeon-SandyBridge E5-2620-HexCore [2GHz]
    Seagate Cheetah / X25-E Extreme SSD
    16GB of RAM
    PHP 5.4.33
    MySQL 5.6.17
    Apache 2.4
    Memcached / opcache

    Code:
    top - 14:47:08 up 6 days, 19 min,  1 user,  load average: 1.84, 1.50, 1.36
    Tasks: 574 total,   2 running, 572 sleeping,   0 stopped,   0 zombie
    Cpu(s):  7.4%us,  2.8%sy,  0.0%ni, 89.7%id,  0.1%wa,  0.0%hi,  0.1%si,  0.0%st
    Mem:  16302892k total, 11323396k used,  4979496k free,   105684k buffers
    Swap:  1048572k total,        0k used,  1048572k free,  1714056k cached
    
      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    12833 mysql     20   0 19.6g 5.9g 7256 S  8.9 37.8 123:12.93 mysqld
    10569 nobody    20   0  567m  42m  29m S  8.6  0.3   0:05.83 httpd
    28826 nobody    20   0  566m  47m  32m S  6.0  0.3   0:09.88 httpd
    28827 nobody    20   0  567m  55m  41m S  5.6  0.3   0:09.95 httpd
    28540 nobody    20   0  564m  54m  41m S  5.0  0.3   0:10.33 httpd
     7598 nobody    20   0  567m  63m  49m S  4.6  0.4   0:28.16 httpd
    20715 nobody    20   0  564m  41m  28m S  4.6  0.3   0:04.05 httpd
    23849 nobody    20   0  569m  54m  41m S  4.6  0.3   0:13.40 httpd
    12943 nobody    20   0  566m  31m  16m R  4.3  0.2   0:01.01 httpd
    15174 nobody    20   0  566m  32m  18m S  4.0  0.2   0:00.59 httpd
    18962 nobody    20   0  568m  59m  43m S  4.0  0.4   0:11.32 httpd
    10594 nobody    20   0  567m  51m  38m S  3.6  0.3   0:05.61 httpd
    
    
    Code:
     >>  MySQLTuner 1.2.0 - Major Hayden <major@mhtx.net>
     >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/
     >>  Run with '--help' for additional options and output filtering
    
    -------- General Statistics --------------------------------------------------
    [--] Skipped version check for MySQLTuner script
    [OK] Currently running supported MySQL version 5.6.17
    [OK] Operating on 64-bit architecture
    
    -------- Storage Engine Statistics -------------------------------------------
    [--] Status: +Archive -BDB -Federated +InnoDB -ISAM -NDBCluster
    [--] Data in MyISAM tables: 584M (Tables: 652)
    [--] Data in InnoDB tables: 4G (Tables: 287)
    [--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 52)
    [--] Data in MEMORY tables: 6M (Tables: 9)
    [!!] Total fragmented tables: 315
    
    -------- Security Recommendations  -------------------------------------------
    [OK] All database users have passwords assigned
    
    -------- Performance Metrics -------------------------------------------------
    [--] Up for: 1d 2h 56m 21s (21M q [220.530 qps], 2M conn, TX: 171B, RX: 6B)
    [--] Reads / Writes: 51% / 49%
    [--] Total buffers: 6.8G global + 2.9M per thread (450 max threads)
    [OK] Maximum possible memory usage: 8.0G (51% of installed RAM)
    [OK] Slow queries: 0% (2/21M)
    [OK] Highest usage of available connections: 54% (245/450)
    [OK] Key buffer size / total MyISAM indexes: 8.0M/167.9M
    [OK] Key buffer hit rate: 96.9% (113M cached / 3M reads)
    [OK] Query cache efficiency: 61.1% (6M cached / 10M selects)
    [!!] Query cache prunes per day: 318008
    [OK] Sorts requiring temporary tables: 0% (411 temp sorts / 906K sorts)
    [!!] Temporary tables created on disk: 26% (26K on disk / 101K total)
    [OK] Thread cache hit rate: 99% (2K created / 2M connections)
    [OK] Table cache hit rate: 83% (1K open / 2K opened)
    [OK] Open file limit used: 37% (1K/5K)
    [OK] Table locks acquired immediately: 99% (14M immediate / 14M locks)
    [OK] InnoDB data size / buffer pool: 4.6G/6.2G
    
    -------- Recommendations -----------------------------------------------------
    General recommendations:
        Run OPTIMIZE TABLE to defragment tables for better performance
        Increasing the query_cache size over 128M may reduce performance
        Temporary table size is already large - reduce result set size
        Reduce your SELECT DISTINCT queries without LIMIT clauses
    Variables to adjust:
        query_cache_size (> 256M) [see warning above]
    
    Code:
    [mysqld]
    datadir="xxxx"
    tmpdir="xxxx"
    
    max_connections = 450
    innodb_buffer_pool_size=6400M
    innodb_log_file_size=5M
    innodb_log_buffer_size=8M
    query_cache_limit=2M
    query_cache_size=256M
    query_cache_type=1
    join_buffer_size=2M
    wait_timeout=360
    interactive_timeout=60
    connect_timeout=10
    tmp_table_size=256M
    max_heap_table_size=256M
    
    Code:
    Start Servers 25
    Minimum Spare Servers 25
    Maximum Spare Servers 50
    Server Limit 250
    Max Request Workers 250
    Max Request Workers 250
    Max Connections Per Child 10000
    Keep-Alive On
    Keep-Alive Timeout 2
    Max Keep-Alive Requests 100
    Timeout 100
    
    Thanks!!
     
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

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    Hello :)

    Could you also let us know which PHP handler you are using?

    Thank you.
     
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  3. dethfire

    dethfire Registered

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    DSO thanks! :)
     
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