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Count running Apache processes

harmlessApachedebian, ubuntu
user@server
ps -C apache2 --no-headers | wc -l

Counts all processes named apache2, meaning the parent process and its children. If the number climbs to the configured limit under load, requests start to queue. With the event MPM the process count says less than with prefork, since each process serves many threads.

Note: ps -C apache2 -o rss= | awk '{s+=$1} END {print s/1024 " MB"}' shows the memory usage.

Also searched as

  • how many apache processes are running
  • count apache child processes
  • check apache load linux

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