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authorTom Smeding <tom.smeding@gmail.com>2020-08-30 15:27:15 +0200
committerTom Smeding <tom.smeding@gmail.com>2020-08-30 15:27:15 +0200
commit5694d60621969f2d531f5cdda3a19f1e3f958c07 (patch)
tree1ea4d0dfa47780a0b0ed6f49773a5cefc8ca4cbe /monitoring
parent860e402d6372a0ede1cf97ff5af358fc339b2b3a (diff)
monitoring: Also plot
Diffstat (limited to 'monitoring')
-rwxr-xr-xmonitoring/monitoring.sh56
1 files changed, 53 insertions, 3 deletions
diff --git a/monitoring/monitoring.sh b/monitoring/monitoring.sh
index b09489d..328c3f6 100755
--- a/monitoring/monitoring.sh
+++ b/monitoring/monitoring.sh
@@ -2,6 +2,49 @@
set -euo pipefail
SLEEPTIME=60
+PLOTDIR=""
+
+function usage() {
+ echo >&2 "Usage: $0 [-s sleeptime] [-o plotdir]"
+ echo >&2 " -s sleeptime Time to sleep between polls; default $SLEEPTIME seconds"
+ echo >&2 " -o plotdir Output directory for plots; default none"
+}
+
+ARGS=$(getopt -o 'hs:o:' -n "$0" -- "$@")
+eval set -- "$ARGS"
+unset ARGS
+
+while true; do
+ case "$1" in
+ -h)
+ usage
+ exit 0
+ ;;
+
+ -s)
+ SLEEPTIME="$2"
+ shift 2
+ ;;
+
+ -o)
+ PLOTDIR="$2"
+ shift 2
+ ;;
+
+ --)
+ shift
+ break
+ ;;
+ esac
+done
+
+if [[ $# -gt 0 ]]; then
+ usage
+ exit 1
+fi
+
+[[ -n $PLOTDIR ]] && PLOTDIR=$(realpath "$PLOTDIR")
+[[ ! -d $PLOTDIR ]] && { echo >&2 "'$PLOTDIR' is not a directory"; exit 1; }
cd "$(dirname "$0")"
@@ -12,12 +55,19 @@ stat --version 2>/dev/null | grep -q 'GNU coreutils' || {
logf_dbsize="log_dbsize.txt"
[[ -f $logf_dbsize ]] && echo "Appending to '$logf_dbsize'" || echo "Logging to '$logf_dbsize'"
-echo "Monitoring: logging every $SLEEPTIME seconds"
-
while true; do
now="$EPOCHSECONDS"
- dbsize="$(stat -c '%s' ../db.db)"
+ dbsize=$(stat -c '%s' ../db.db)
echo "$now $dbsize" >>"$logf_dbsize"
+ if [[ -n $PLOTDIR ]]; then
+ gnuplot <<EOF
+set terminal png size 960,640
+set output '$PLOTDIR/dbsize.png'
+set grid
+plot '$logf_dbsize' w lp
+EOF
+ fi
+
sleep "$SLEEPTIME"
done