lowered the cpu utilization and minor page faults to about half of what it was by...

diff --git a/plugins.d/charts.d.plugin b/plugins.d/charts.d.plugin
index 543695dd7d8d48eb3766473814014585c4ee3fb3..6b361b4ac8707120c4d8a4eb7528594b6fd92c0a 100755 (executable)
--- a/plugins.d/charts.d.plugin
+++ b/plugins.d/charts.d.plugin
@@ -508,7 +508,8 @@ declare -A charts_last_update=() charts_update_every=() charts_next_update=() ch
 global_update() {
        local exit_at \
                c=0 dt ret last_ms exec_start_ms exec_end_ms \
-               chart now_charts=() next_charts=($run_charts)
+               chart now_charts=() next_charts=($run_charts) \
+               next_ms x seconds millis
 
        # return the current time in ms in $now_ms
        current_time_ms
@@ -600,12 +601,20 @@ global_update() {
                        suspend || ( echo >&2 "$PROGRAM_NAME: suspend returned error $?, falling back to sleep."; loopsleepms $debug_time $update_every $time_divisor)
                else
                        # wait the time you are required to
-                       #loopsleepms $debug_time $update_every $time_divisor
-                       if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 ]
+                       next_ms=$((now_ms + (update_every * 1000 * 100) ))
+                       for x in "${charts_next_update[@]}"; do [ ${x} -lt ${next_ms} ] && next_ms=${x}; done
+                       next_ms=$((next_ms - now_ms))
+
+                       if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 -a ${next_ms} -gt 0 ]
                                then
-                               sleep 0.2
+                               seconds=$(( next_ms / 1000 ))
+                               millis=$(( next_ms % 1000 ))
+                               [ ${millis} -lt 10  ] && millis="0${millis}"
+                               [ ${millis} -lt 100 ] && millis="0${millis}"
+                               [ $debug -eq 1 ] && echo >&2 "$PROGRAM_NAME: sleeping for ${seconds}.${millis} seconds."
+                               sleep ${seconds}.${millis}
                        else
-                               sleep 1
+                               sleep $update_every
                        fi
                fi