forked from sig_core/toolkit
31 lines
720 B
Bash
Executable file
31 lines
720 B
Bash
Executable file
#!/bin/bash
|
|
r_log "sysstat" "Test basic iostat disk measurements"
|
|
|
|
TMPFILE=/var/tmp/iostat.disk
|
|
BLOCKS=4096
|
|
COUNT=10100
|
|
SUM="$(expr $BLOCKS \* $COUNT / 1024)"
|
|
DISK="$(fdisk -l | grep -Po -m1 '^/dev/[\D]+')"
|
|
|
|
[ -e $TMPFILE ] && /bin/rm -f $TMPFILE
|
|
|
|
# Clear out page cache
|
|
echo 1 > /proc/sys/vm/drop_caches
|
|
|
|
r_log "sysstat" "Running iostat on $DISK"
|
|
/usr/bin/iostat -dkx 1 5 $DISK > $TMPFILE &
|
|
|
|
# wait
|
|
sleep 4
|
|
|
|
# Generate traffic
|
|
/bin/dd if=$DISK of=/dev/null bs=$BLOCKS count=$COUNT &> /dev/null
|
|
|
|
# wait
|
|
sleep 6
|
|
|
|
READBYTES=$(awk '$6 ~ /[0-9]/ {NR>1 && sum+=$6} END {print int(sum)}' $TMPFILE)
|
|
|
|
[ "$READBYTES" -ge "$SUM" ] || { r_log "sysstat" "It doesn't look like we got a lot of traffic. Why?"; }
|
|
|
|
r_checkExitStatus $?
|