Fine-tune MYSQL buffer settings (my.cnf) - Expert needed!

Hello,

Given are the following specs for a server:

50 CPU
128 GB RAM + 16 gb ram swap
2.5 TB SSD

Websites on the server are running on Wordpress + LScache.

We currently have this following my.cnf which needs improvements:

[mysqld]
performance-schema=0
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
innodb_buffer_pool_size = 80G
innodb_buffer_pool_instances = 64
innodb_buffer_pool_chunk_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 1280M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

performance-schema=0
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

performance-schema=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
innodb_file_per_table=1
default-storage-engine=MyISAM
max_allowed_packet=268435456
sql_mode=NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION


query_cache_type = 1
query_cache_size = 2048M
query_cache_limit = 40M

max_connections = 4096

wait_timeout = 60
#wait_timeout = 240

table_open_cache = 1024
sort_buffer_size = 40M
read_buffer_size = 40M
read_rnd_buffer_size = 40M
myisam_sort_buffer_size = 1024M
thread_cache_size = 8
tmp_table_size=2048M

tmpdir=/dev/shm/
open_files_limit=50000


We need you to provide us a better my.cnf file which would improve and deliver better performance for the server. Currently server runs stable but we want better performance.

This job could be on-going collaboration job if you are a sysadmin expert.

Looking forward!
About the recuiter
Member since May 20, 2018
Prashant Sethia
from Jamalo-Nenets, Russia

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