Difference between revisions of "Winter 2009 SYA810 Block Device Benchmark Scripts"
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| − | Please post your block device benchmark script here. I'm looking for a wide range of benchmark methodologies, so your script should test in a different way than the other scripts | + | Please post your block device benchmark script here. I'm looking for a wide range of benchmark methodologies, so your script should test in a different way than the other scripts. |
= P. Constantino = | = P. Constantino = | ||
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echo " ^ time to process randomly $BLOCKS blocks of 1KB on /dev/$BLOCKDEVICE." | echo " ^ time to process randomly $BLOCKS blocks of 1KB on /dev/$BLOCKDEVICE." | ||
| − | = | + | = Katherine Masseau = |
[http://matrix.senecac.on.ca/~gjmasseau/DiskTest.py Disk Test Script] | [http://matrix.senecac.on.ca/~gjmasseau/DiskTest.py Disk Test Script] | ||
| Line 62: | Line 62: | ||
echo -n $((1024 / $TIME_READ_USED)) | echo -n $((1024 / $TIME_READ_USED)) | ||
echo " MB/sec" | echo " MB/sec" | ||
| + | |||
| + | == Milton Paiva Neto == | ||
| + | |||
| + | #!/bin/bash | ||
| + | # | ||
| + | # Script first written by Nestor Chan - Bossanesta and modified by Milton Paiva Neto <milton.paiva@gmail.com> | ||
| + | # Create 10 files with one with 10 GBs fully of zeros | ||
| + | |||
| + | time -p (for ((x=1; x<=10; x++)) | ||
| + | do | ||
| + | dd if=/dev/zero of=fakefile$x bs=1G count=10; | ||
| + | done | ||
| + | sync | ||
| + | ) | ||
| + | |||
| + | = LINKS = | ||
| + | [http://linux-raid.osdl.org/index.php/Performance Linux Raid Performance] | ||
Latest revision as of 22:39, 16 July 2012
Please post your block device benchmark script here. I'm looking for a wide range of benchmark methodologies, so your script should test in a different way than the other scripts.
Contents
P. Constantino
#!/bin/bash
# This script generate random numbers and seeks to that POSITION on the block device given, reading 1 kb of data at the time.
# The purpose is test the speed of randomly reading 1024(default) blocks of 1KB from the disk.
# A valid input for BLOCK DEVICE could be: /dev/sdb (disk) - /dev/sda9 (partition) - /dev/md8 (RAID) - /dev/mapper/foo/bar (LV).
echo -n "Enter a number of block to read. Enter for default(1024): "
read BLOCKS
if [ "$BLOCKS" = "" ]
then
BLOCKS=1024
fi
echo -n "Enter a valid block device (dev/): "
read BLOCKDEVICE
SIZE=$(df /dev/$BLOCKDEVICE | awk '{print $3}' | grep -v 'Used')
time -p for ((x=1; x<=$BLOCKS; x++))
do
POSITION=$(( RANDOM % $SIZE + 1))
dd if=/dev/$BLOCKDEVICE of=/dev/null bs=1k count=1 seek=$POSITION
sync
echo 3 >/proc/sys/vm/drop_caches
done
echo " ^ time to process randomly $BLOCKS blocks of 1KB on /dev/$BLOCKDEVICE."
Katherine Masseau
Nestor CHAN
Mohak Vyas
Varinder Singh
Script in Python.Any suggestions would be welcome
Kezhong Liang
#!/bin/bash echo "Start to test ..." TIME_WRITE_START=$(date +%s) dd if=/dev/zero of=test bs=1024 count=1000000 sync TIME_WRITE_END=$(date +%s) echo 3 > /proc/sys/vm/drop_caches sync TIME_READ_START=$(date +%s) dd if=test of=/dev/null bs=1024 count=1000000 TIME_READ_END=$(date +%s) rm test echo "--------------------------------------------------------" TIME_WRITE_USED=$(($TIME_WRITE_END - $TIME_WRITE_START)) echo -n "The write disk performance: " echo -n $((1024 / $TIME_WRITE_USED)) echo " MB/sec" TIME_READ_USED=$(($TIME_READ_END - $TIME_READ_START)) echo -n "The read disk performance: " echo -n $((1024 / $TIME_READ_USED)) echo " MB/sec"
Milton Paiva Neto
#!/bin/bash
#
# Script first written by Nestor Chan - Bossanesta and modified by Milton Paiva Neto <milton.paiva@gmail.com>
# Create 10 files with one with 10 GBs fully of zeros
time -p (for ((x=1; x<=10; x++))
do
dd if=/dev/zero of=fakefile$x bs=1G count=10;
done
sync
)
