Sysbench script to measure random I/O

sysbench-fileio.sh

#!/bin/bash

# Set to 2x RAM
FILE_TOTAL_SIZE="32G"

#Set to long enough to complete several runs
MAX_TIME="240"

#For random IO set to 4K otherwise set to 1M for sequential
FILE_BLOCK_SIZE="4K"

logdate=$(date +%F)

echo "Preparing test"
sysbench --test=fileio --file-total-size=$FILE_TOTAL_SIZE prepare

echo "Running tests"
for run in 1 2 3; do
	for each in 1 4 8 16 32 64; do
		#echo "############## Running Test - Read/Write - Thread Number:" $each "- Run:" $run "##############"
		#sysbench --test=fileio --file-total-size=$FILE_TOTAL_SIZE --file-test-mode=rndrw --max-time=$MAX_TIME --max-requests=0 --file-block-size=$FILE_BLOCK_SIZE --num-threads=$each --file-fsync-all run > log-$logdate-readwrite-${each}T-${run}R.log

		echo "############## Running Test - Write - Thread Number:" $each "- Run:" $run "##############"
		sysbench --test=fileio --file-total-size=$FILE_TOTAL_SIZE --file-test-mode=rndwr --max-time=$MAX_TIME --max-requests=0 --file-block-size=$FILE_BLOCK_SIZE --num-threads=$each --file-fsync-all run > log-$logdate-write-${each}T-${run}R.log
	
		echo "############## Running Test - Read - Thread Number:" $each "- Run:" $run "##############"
		sysbench --test=fileio --file-total-size=$FILE_TOTAL_SIZE --file-test-mode=rndrd --max-time=$MAX_TIME --max-requests=0 --file-block-size=$FILE_BLOCK_SIZE --num-threads=$each run > log-$logdate-read-${each}T-${run}R.log
	done
done

echo "Cleaning up"
sysbench --test=fileio --file-total-size=$FILE_TOTAL_SIZE cleanup