key_buffer_size= 1024M

max_allowed_packet = 16M

sort_buffer_size = 32M

read_buffer_size = 32M

read_rnd_buffer_size = 32M

myisam_sort_buffer_size = 256M

thread_cache_size = 32

query_cache_size = 256M

thread_concurrency = 8

msyql重启

https://www.cnblogs.com/linjiqin/p/3544472.html