Konuyu görünce bende değerlerimi vereyim dedim. Çıktı şu şekilde benim için ne önerirsiniz acaba hocam ?

 >>  MySQLTuner 1.4.0 - Major Hayden <major@mhtx.net>
 >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/
 >>  Run with '--help' for additional options and output filtering
[OK] Currently running supported MySQL version 5.6.22
[!!] Switch to 64-bit OS - MySQL cannot currently use all of your RAM

-------- Storage Engine Statistics -------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM
[--] Data in MyISAM tables: 628M (Tables: 631)
[--] Data in InnoDB tables: 742M (Tables: 676)
[--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 52)
[--] Data in MEMORY tables: 71M (Tables: 10)
[!!] Total fragmented tables: 86

-------- Security Recommendations  -------------------------------------------
[OK] All database users have passwords assigned

-------- Performance Metrics -------------------------------------------------
[--] Up for: 9d 2h 0m 45s (66M q [84.159 qps], 887K conn, TX: 244B, RX: 8B)
[--] Reads / Writes: 91% / 9%
[--] Total buffers: 7.2G global + 72.4M per thread (500 max threads)
[!!] Allocating > 2GB RAM on 32-bit systems can cause system instability
[!!] Maximum possible memory usage: 42.6G (288% of installed RAM)
[OK] Slow queries: 0% (29/66M)
[OK] Highest usage of available connections: 6% (34/500)
[OK] Key buffer size / total MyISAM indexes: 768.0M/190.0M
[OK] Key buffer hit rate: 99.6% (69M cached / 264K reads)
[OK] Query cache efficiency: 87.8% (54M cached / 61M selects)
[!!] Query cache prunes per day: 7621
[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 494K sorts)
[!!] Joins performed without indexes: 9090
[!!] Temporary tables created on disk: 68% (159K on disk / 234K total)
[OK] Thread cache hit rate: 99% (97 created / 887K connections)
[!!] Table cache hit rate: 0% (512 open / 102K opened)
[OK] Open file limit used: 0% (470/50K)
[OK] Table locks acquired immediately: 99% (3M immediate / 3M locks)
[!!] InnoDB  buffer pool / data size: 128.0M/742.1M
[OK] InnoDB log waits: 0
-------- Recommendations -----------------------------------------------------
General recommendations:
    Run OPTIMIZE TABLE to defragment tables for better performance
    Increasing the query_cache size over 128M may reduce performance
    Adjust your join queries to always utilize indexes
    Temporary table size is already large - reduce result set size
    Reduce your SELECT DISTINCT queries without LIMIT clauses
    Increase table_open_cache gradually to avoid file descriptor limits
    Read this before increasing table_open_cache over 64: http://bit.ly/1mi7c4C
Variables to adjust:
  *** MySQL's maximum memory usage is dangerously high ***
  *** Add RAM before increasing MySQL buffer variables ***
    query_cache_size (> 256M) [see warning above]
    join_buffer_size (> 24.0M, or always use indexes with joins)
    table_open_cache (> 512)
    innodb_buffer_pool_size (>= 742M)

my.cnf dosyamda şu şekilde hocam.

[myisamchk]
tmpdir="/tmp"
sort_buffer=64M
write_buffer=16M
key_buffer=256M
read_buffer=16M
[isamchk]
sort_buffer_size=256M
write_buffer=2M
key_buffer=256M
read_buffer=2M
[mysqld]
query_cache_limit=64M
query_cache_type=1
#thread_concurrency=64
myisam_sort_buffer_size=256M
thread_cache_size=256M
open_files_limit=50000
table_open_cache=15000
interactive_timeout=30
max_heap_table_size=6192M
innodb_additional_mem_pool_size=32M
innodb_buffer_pool_size=134217728
key_buffer_size=768M
query_cache_size=256M
join_buffer_size=24M
innodb_flush_method=O_DIRECT
max_connect_errors=5
max_allowed_packet=268435456
#skip-networking
sort_buffer_size=24M
table_open_cache=512
innodb_thread_concurrency=16
local-infile=0
read_buffer_size=24M
max_connections=500
tmpdir="/tmp"
connect_timeout=60
wait_timeout=30
tmp_table_size=6192M
max_user_connections=1000
table_definition_cache=12K
default-storage-engine=MyISAM
innodb_file_per_table=1
skip-networking
#bind-address=0.0.0.0
table_cache = 1000