Add process monitoring

1 files changed, 20 insertions, 1 deletions

diff --git a/minimunin b/minimunin
index 950c0e8..3a96ae0 100755
--- a/minimunin
+++ b/minimunin
@@ -2,7 +2,7 @@
 
 PLUGIN_DIR=/usr/local/etc/minimunin-plugins
 CONFIG_DIR=/usr/local/etc/minimunin-configs
-BUILTIN="cpu load swap systat iostat uptime memory open_files"
+BUILTIN="cpu processes load swap systat iostat uptime memory open_files"
 SYSCTL=/sbin/sysctl
 [ -f ${SYSCTL} ] || SYSCTL=/usr/sbin/sysctl
 
@@ -80,6 +80,11 @@ cpu)
     set -- `get_sys kern.cp_time`
     printf "user.value %d\nnice.value %d\nsystem.value %d\ninterrupt.value %d\nidle.value %d\n" "$1" "$2" "$3" "$4" "$5"
     ;;
+processes)
+    printf "processes.value %d\n" `/bin/pgrep -aS .* | /usr/bin/wc -l`
+    printf "threads.value %d\n" $(( `ps auxwH | wc -l` - 1 ))
+    printf "maxprocesses.value %d\n" `get_sys kern.maxproc`
+    ;;
 iostat)
     for d in `/usr/sbin/iostat -Id | /usr/bin/head -n 1 | /usr/bin/xargs`; do
         set -- `/usr/sbin/iostat -Idx ${d} | /usr/bin/tail -n 1 | /usr/bin/xargs`
@@ -292,6 +297,20 @@ cat <<-EOF
         forks.min 0
 EOF
 ;;
+processes)
+cat <<-EOF
+graph_title Process Statistics
+        graph_args --base 1000 -l 0
+        graph_vlabel number of processes
+        graph_category system
+        graph_info This graph monitors the number of running processes and threads.
+        processes.label The number of processes in the system
+        threads.label The number of threads in the system
+        maxprocesses.label The maximum number of processes in the system
+        processes.warning $(( get_sys kern.maxproc * 92 / 100 ))
+        processes.critical $(( get_sys kern.maxproc * 98 / 100 ))
+EOF
+;;
 *)
     printf "# Unknown plugin ${_plugin}.\n"
     ;;