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Calc collect loop run time based on start ts - curr ts so arbitrary --sleep-collect work. Do not sync on clock ticks.

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This commit is contained in:
Daniel Nichter
2013-07-24 12:49:28 -07:00
parent 86a949253d
commit 47ef093a58
2 changed files with 17 additions and 19 deletions
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17
bin/pt-stalk
View File

@@ -883,7 +883,11 @@ collect() {
fi
log "Loop start: $(date +'TS %s.%N %F %T')"
for loopno in $(_seq $OPT_RUN_TIME); do
local start_time=$(date +'%s')
local curr_time=$start_time
while [ $((curr_time - start_time)) -lt $OPT_RUN_TIME ]; do
local ts="$(date +"TS %s.%N %F %T")"
disk_space $d > $d/$p-disk-space
check_disk_space \
$d/$p-disk-space \
@@ -891,10 +895,6 @@ collect() {
"$OPT_DISK_PCT_FREE" \
|| break
sleep $(date +'%s.%N' | awk "{print $OPT_SLEEP_COLLECT - (\$1 % $OPT_SLEEP_COLLECT)}")
local ts="$(date +"TS %s.%N %F %T")"
if [ -d "/proc" ]; then
if [ -f "/proc/diskstats" ]; then
(echo $ts; cat /proc/diskstats) >> "$d/$p-diskstats" &
@@ -915,19 +915,18 @@ collect() {
(echo $ts; cat /proc/interrupts) >> "$d/$p-interrupts" &
fi
fi
(echo $ts; df -k) >> "$d/$p-df" &
(echo $ts; netstat -antp) >> "$d/$p-netstat" &
(echo $ts; netstat -s) >> "$d/$p-netstat_s" &
(echo $ts; $CMD_MYSQL $EXT_ARGV -e "SHOW FULL PROCESSLIST\G") \
>> "$d/$p-processlist" &
if [ "$have_lock_waits_table" ]; then
(echo $ts; lock_waits) >>"$d/$p-lock-waits" &
(echo $ts; transactions) >>"$d/$p-transactions" &
fi
sleep $OPT_SLEEP_COLLECT
curr_time=$(date +'%s')
done
log "Loop end: $(date +'TS %s.%N %F %T')"

19
lib/bash/collect.sh
View File

@@ -178,7 +178,11 @@ collect() {
# This loop gathers data for the rest of the duration, and defines the time
# of the whole job.
log "Loop start: $(date +'TS %s.%N %F %T')"
for loopno in $(_seq $OPT_RUN_TIME); do
local start_time=$(date +'%s')
local curr_time=$start_time
while [ $((curr_time - start_time)) -lt $OPT_RUN_TIME ]; do
local ts="$(date +"TS %s.%N %F %T")"
# We check the disk, but don't exit, because we need to stop jobs if we
# need to exit.
disk_space $d > $d/$p-disk-space
@@ -188,14 +192,9 @@ collect() {
"$OPT_DISK_PCT_FREE" \
|| break
# Synchronize ourselves onto the clock tick, so the sleeps are 1-second
sleep $(date +'%s.%N' | awk "{print $OPT_SLEEP_COLLECT - (\$1 % $OPT_SLEEP_COLLECT)}")
local ts="$(date +"TS %s.%N %F %T")"
# #####################################################################
# Collect data for this cycle.
# #####################################################################
if [ -d "/proc" ]; then
if [ -f "/proc/diskstats" ]; then
(echo $ts; cat /proc/diskstats) >> "$d/$p-diskstats" &
@@ -216,19 +215,19 @@ collect() {
(echo $ts; cat /proc/interrupts) >> "$d/$p-interrupts" &
fi
fi
(echo $ts; df -k) >> "$d/$p-df" &
(echo $ts; netstat -antp) >> "$d/$p-netstat" &
(echo $ts; netstat -s) >> "$d/$p-netstat_s" &
(echo $ts; $CMD_MYSQL $EXT_ARGV -e "SHOW FULL PROCESSLIST\G") \
>> "$d/$p-processlist" &
if [ "$have_lock_waits_table" ]; then
(echo $ts; lock_waits) >>"$d/$p-lock-waits" &
(echo $ts; transactions) >>"$d/$p-transactions" &
fi
# Sleep between collect cycles.
sleep $OPT_SLEEP_COLLECT
curr_time=$(date +'%s')
done
log "Loop end: $(date +'TS %s.%N %F %T')"