blob: ce7d20fca0adf08823fc4a3868856d7abee249c5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#!/bin/bash -ex
RUN_TIME=300 # approximate duration of run (seconds)
[ $# -eq 1 ] && RUN_TIME="$1"
IMAGE_NAME="image-$$"
IMAGE_SIZE="1024" # MB
function get_time() {
date '+%s'
}
function times_up() {
local end_time="$1"
test $(get_time) -ge "${end_time}"
}
function map_unmap() {
[ $# -eq 1 ] || exit 99
local image_name="$1"
local dev
dev="$(sudo rbd map "${image_name}")"
sudo rbd unmap "${dev}"
}
#### Start
rbd create "${IMAGE_NAME}" --size="${IMAGE_SIZE}"
COUNT=0
START_TIME=$(get_time)
END_TIME=$(expr $(get_time) + ${RUN_TIME})
while ! times_up "${END_TIME}"; do
map_unmap "${IMAGE_NAME}"
COUNT=$(expr $COUNT + 1)
done
ELAPSED=$(expr "$(get_time)" - "${START_TIME}")
rbd rm "${IMAGE_NAME}"
echo "${COUNT} iterations completed in ${ELAPSED} seconds"
|
