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Apache MAXCLIENTS
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| #!/bin/bash | |
| _MEM_INFO=`cat /proc/meminfo` | |
| _MEM_TOTAL=`echo "$_MEM_INFO" | grep MemTotal | awk '{print $2}'` | |
| _MEM_FREE=`echo "$_MEM_INFO" | egrep '(MemFree|Inactive):' | awk '{v += $2} END {print v}'` | |
| _RSS_TOTAL=0 | |
| _SHARED_TOTAL=0 | |
| _PROC_COUNT=0 | |
| for _PID in `pgrep httpd`; do | |
| _P=/proc/$_PID/smaps | |
| if [ -e $_P ];then | |
| _SMAPS=`cat "$_P"` | |
| if [ ! -z "$_SMAPS" ];then | |
| _PROC_COUNT=`expr $_PROC_COUNT + 1`; | |
| _RSS=`echo "$_SMAPS" | grep Rss | awk '{v += $2} END {print v}'` | |
| _SHARED=`echo "$_SMAPS" | grep Shared | awk '{v += $2} END {print v}'` | |
| _RSS_TOTAL=`expr $_RSS_TOTAL + $_RSS` | |
| _SHARED_TOTAL=`expr $_SHARED_TOTAL + $_SHARED` | |
| fi | |
| fi | |
| done | |
| _RSS_AVG=`expr $_RSS_TOTAL / $_PROC_COUNT` | |
| _SHARED_AVG=`expr $_SHARED_TOTAL / $_PROC_COUNT` | |
| _PROC_MEM=`expr $_RSS_AVG - $_SHARED_AVG` | |
| _ADDITIONAL_CLIENTS=`expr $_MEM_FREE / $_PROC_MEM` | |
| _MIN_MAXCLIENTS=`expr $_PROC_COUNT + $_ADDITIONAL_CLIENTS` | |
| _MAX_MAXCLIENTS=`expr $_MEM_TOTAL / $_PROC_MEM` | |
| echo 'RSS/proc (avg) = '$_RSS_AVG' KB' | |
| echo 'Shared/proc (avg) = '$_SHARED_AVG' KB' | |
| echo 'Proc Used Memory/proc = '$_PROC_MEM' KB' | |
| echo '--------------------------------' | |
| echo 'MaxClients = '$_MIN_MAXCLIENTS' ('$_PROC_COUNT'+'$_ADDITIONAL_CLIENTS') ~ '$_MAX_MAXCLIENTS | |
| exit |
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