1 files changed, 54 insertions, 0 deletions
diff --git a/abs/core/linhes-scripts/limit-mythcommflag.sh b/abs/core/linhes-scripts/limit-mythcommflag.sh
new file mode 100755
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--- /dev/null
+++ b/abs/core/linhes-scripts/limit-mythcommflag.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+# limit-mythcommflag.sh   v0.1  05/17/09
+# Utility to automatically limit mythcommflag if CPU usage is above a certain level.
+# Uses cpulimit from http://cpulimit.sourceforge.net/
+# Free for any use.
+# Installation:
+#  cp limit-mythcommflag.sh /usr/LH/bin
+#  chmod +x /usr/LH/bin/limit-mythcommflag.sh
+# Usage: Executed from runit limit-mythcommflag at boot
+
+# Threshold for when mythcommflag will be paused
+CPUTHRESHOLD=43
+
+# Limit mythcommflag to percentage
+LIMITCPU=20
+
+# Log file to write (use /dev/null for no log)
+#LOG=/var/log/mythtv/limit-mythcommflag.log
+LOG=/dev/null
+
+# Number of seconds to wait between checking for mythcommflag process
+SLEEP=5
+
+#sleep $SLEEP
+
+touch $LOG
+
+ALREADYLIMITED=0
+
+while true; do
+    PROCCOMMFLAG=`pidof mythcommflag`
+    if [ -n "${PROCCOMMFLAG}" ]
+    then
+        FRONTENDCPU=`top -bn1u mythtv | grep mythfrontend | awk '{ print $9 }'`
+        if [ "$FRONTENDCPU" -ge "$CPUTHRESHOLD" ]
+        then
+            echo "$(date) FE CPU $FRONTENDCPU% is greater than $CPUTHRESHOLD%, LIMIT Commflagging" # >> $LOG
+            if [ $ALREADYLIMITED -eq 0 ]; then
+                cpulimit -e mythcommflag -l $LIMITCPU &
+		cpulimit_pid=$!
+                ALREADYLIMITED=1
+            fi
+        else
+            echo "$(date) FE CPU $FRONTENDCPU% is less than $CPUTHRESHOLD%, UNLIMIT Commflagging" #>> $LOG
+            if [ $ALREADYLIMITED -eq 1 ]; then
+	        kill $cpulimit_pid
+                ALREADYLIMITED=0
+            fi
+        fi
+#    else
+#        echo "No COMMFLAG Process Active" >> $LOG
+    fi
+    sleep $SLEEP
+done