Created
July 31, 2023 12:05
-
-
Save gquittet/aa9f568187779a4824db129bf6730797 to your computer and use it in GitHub Desktop.
MySQL RAM analysis
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/sh | |
# you might want to add some user authentication here | |
mysql -uuser -ppassword -h127.0.0.1 -e "show variables; show status" | awk ' | |
{ | |
VAR[$1]=$2 | |
} | |
END { | |
MAX_CONN = VAR["max_connections"] | |
MAX_USED_CONN = VAR["Max_used_connections"] | |
BASE_MEM=VAR["key_buffer_size"] + VAR["query_cache_size"] + VAR["innodb_buffer_pool_size"] + VAR["innodb_additional_mem_pool_size"] + VAR["innodb_log_buffer_size"] | |
MEM_PER_CONN=VAR["read_buffer_size"] + VAR["read_rnd_buffer_size"] + VAR["sort_buffer_size"] + VAR["join_buffer_size"] + VAR["binlog_cache_size"] + VAR["thread_stack"] + VAR["tmp_table_size"] | |
MEM_TOTAL_MIN=BASE_MEM + MEM_PER_CONN*MAX_USED_CONN | |
MEM_TOTAL_MAX=BASE_MEM + MEM_PER_CONN*MAX_CONN | |
printf "+------------------------------------------+--------------------+\n" | |
printf "| %40s | %15.3f MB |\n", "key_buffer_size", VAR["key_buffer_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "query_cache_size", VAR["query_cache_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "innodb_buffer_pool_size", VAR["innodb_buffer_pool_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "innodb_additional_mem_pool_size", VAR["innodb_additional_mem_pool_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "innodb_log_buffer_size", VAR["innodb_log_buffer_size"]/1048576 | |
printf "+------------------------------------------+--------------------+\n" | |
printf "| %40s | %15.3f MB |\n", "BASE MEMORY", BASE_MEM/1048576 | |
printf "+------------------------------------------+--------------------+\n" | |
printf "| %40s | %15.3f MB |\n", "sort_buffer_size", VAR["sort_buffer_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "read_buffer_size", VAR["read_buffer_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "read_rnd_buffer_size", VAR["read_rnd_buffer_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "join_buffer_size", VAR["join_buffer_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "thread_stack", VAR["thread_stack"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "binlog_cache_size", VAR["binlog_cache_size"]/1048576 | |
printf "| %40s | %15.3f MB |\n", "tmp_table_size", VAR["tmp_table_size"]/1048576 | |
printf "+------------------------------------------+--------------------+\n" | |
printf "| %40s | %15.3f MB |\n", "MEMORY PER CONNECTION", MEM_PER_CONN/1048576 | |
printf "+------------------------------------------+--------------------+\n" | |
printf "| %40s | %18d |\n", "Max_used_connections", MAX_USED_CONN | |
printf "| %40s | %18d |\n", "max_connections", MAX_CONN | |
printf "+------------------------------------------+--------------------+\n" | |
printf "| %40s | %15.3f MB |\n", "TOTAL (MIN)", MEM_TOTAL_MIN/1048576 | |
printf "| %40s | %15.3f MB |\n", "TOTAL (MAX)", MEM_TOTAL_MAX/1048576 | |
printf "+------------------------------------------+--------------------+\n" | |
}' |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment