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Description: Measure time that hooks take and print them in the log. Also, disable actual suspend call to make hook optimization/measure turnarounds more convenient. This is not applied by default as the date calls themselves add overhead.
Author: Martin Pitt <martin.pitt@ubuntu.com>
--- old/pm/pm-functions.in
+++ new/pm/pm-functions.in
@@ -196,10 +196,13 @@
# $1 = hook to run
# rest of args passed to hook unchanged.
log "Running hook $*:"
+ t_start=`date +%s.%N`
hook_ok "$1" && "$@"
# log() changes the return value, so save it for later
local status=$?
- log ""
+ t_end=`date +%s.%N`
+ time=`echo $t_end - $t_start | bc -l`
+ log "($time s)"
log -n "$*: "
hook_exit_status $status && LAST_HOOK="${1##*/}" || inhibit
}
@@ -318,7 +321,8 @@
if [ -z "$SUSPEND_MODULE" ]; then
if grep -q mem /sys/power/state; then
SUSPEND_MODULE="kernel"
- do_suspend() { echo -n "mem" >/sys/power/state; }
+ #do_suspend() { echo -n "mem" >/sys/power/state; }
+ do_suspend() { log "Would suspend now"; }
elif [ -c /dev/pmu ] && check_suspend_pmu; then
SUSPEND_MODULE="kernel"
do_suspend() { do_suspend_pmu; }
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