blob: 86f36432587f70d869e82563a4358f5ef1da7d74 (
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#!/system/bin/sh -ex
ITERATION="$1"
OUTPUT="$2"
PARTITION="$3"
export PATH="/data/local/tmp/bin:${PATH}"
if [ "$#" -lt 2 ]; then
echo "ERROR: Usage: $0 <iteration> <output> <partition>"
exit 1
fi
[ -d "${OUTPUT}" ] && mv "${OUTPUT}" "${OUTPUT}_$(date -r "${OUTPUT}" +%Y%m%d%H%M%S)"
mkdir -p "${OUTPUT}" && cd "${OUTPUT}"
# If partition specified, format it to vfat, and mount it to /mnt/dd_test.
# Then enter the mount point to do dd test.
if [ -n "${PARTITION}" ]; then
partition_name=$(basename "${PARTITION}")
# shellcheck disable=SC2016
partition_numbers=$(grep "${partition_name}" /proc/partitions | busybox awk '{print $1","$2}')
if [ -z "${partition_numbers}" ]; then
echo "ERROR: ${PARTITION} NOT found" && exit 1
else
# Attemp to umount it in case it is mounted by Android vold.
umount "/dev/block/vold/public:${partition_numbers}" > /dev/null 2>&1 || true
umount "${PARTITION}" > /dev/null 2>&1 || true
echo "INFO: formatting ${PARTITION} to vfat..."
busybox mkfs.vfat "${PARTITION}"
sync && sleep 10
mkdir -p /mnt/dd_test
if mount -t vfat "${PARTITION}" /mnt/dd_test/; then
echo "INFO: Mounted ${PARTITION} to /mnt/dd_test"
else
echo "ERROR: failed to mount ${PARTITION}" && exit 1
fi
cd /mnt/dd_test
echo "INFO: dd test directory: $(pwd)"
fi
fi
# Run dd write/read test.
for i in $(seq "${ITERATION}"); do
echo
echo "INFO: Running dd write test [$i/${ITERATION}]"
echo 3 > /proc/sys/vm/drop_caches
busybox dd if=/dev/zero of=dd.img bs=1048576 count=1024 conv=fsync 2>&1 \
| tee -a "${OUTPUT}"/dd-write-output.txt
echo
echo "INFO: Running dd read test [$i/${ITERATION}]"
echo 3 > /proc/sys/vm/drop_caches
busybox dd if=dd.img of=/dev/null bs=1048576 count=1024 2>&1 \
| tee -a "${OUTPUT}"/dd-read-output.txt
rm -f dd.img
done
|
