killall5 returns 2 if it didn't find any processes to send to. Using this avoids sleeping longer than needed. This saves another up to six seconds of reboot/shutdown/go-single time. --- functions | 17 +++++++++++++++-- 1 files changed, 15 insertions(+), 2 deletions(-) diff --git a/functions b/functions index 69f06eb..067d61d 100644 --- a/functions +++ b/functions @@ -292,14 +292,27 @@ kill_everything() { run_hook "$1_prekillall" # Terminate all processes + # and wait until timeout or killall5 reports all done + # Unfortunately killall5 does not support the 0 signal, so just + # use SIGCONT for checking (which should be ignored). stat_busy "Sending SIGTERM To Processes" killall5 -15 ${omit_pids[@]/#/-o } &>/dev/null - sleep 5 + local i + for (( i=0; i<20; i++ )); do + killall5 -18 ${omit_pids[@]/#/-o } &>/dev/null + (( $? == 2 )) && break + sleep .25 # 1/4 second + done stat_done stat_busy "Sending SIGKILL To Processes" killall5 -9 ${omit_pids[@]/#/-o } &>/dev/null - sleep 1 + local i + for (( i=0; i<4; i++ )); do + killall5 -18 ${omit_pids[@]/#/-o } &>/dev/null + (( $? == 2 )) && break + sleep .25 # 1/4 second + done stat_done run_hook "$1_postkillall" -- 1.7.1