# fio job file - modeling NAS/DB I/O patterns based on a number # of PCP disk metrics (iops, throughput, queuelen) from our mel # production storage on 2010/07/14. # # Basic usage: # [ args="--latency-log --bandwidth-log" ] # fio $args --output=nas_read_analysis.log --section=nas_read_load model.fio & # fio $args --output=nas_write_analysis.log --section=nas_write_load model.fio & # wait # fio $args --output=db_log_analysis.log --section=db_log_analysis model.fio & # fio $args --output=db_analysis.log --section=db_load model.fio & # wait # fio $args --output=bi_log_analysis.log --section=bi_log_analysis model.fio & # fio $args --output=bi_analysis.log --section=bi_load model.fio & # wait # [global] directory=/iscsi size=2G numjobs=4 runtime=300 time_based [nas_read_load] description=NAS reads workload model ioscheduler=deadline readwrite=read filesize=150M rate=2521k bssplit=4k/5:8k/5:30k/80:60k/5:64k/5 ioengine=psync # make sure we do no seeks, NFS wont be direct=1 iodepth=4 openfiles=4 # model using number of active nfsd threads nrfiles=4 [nas_write_load] description=NAS writes workload model ioscheduler=deadline readwrite=write filesize=150M rate=1233k bssplit=4k/5:8k/5:30k/80:60k/5:64k/5 fsync_on_close=1 # application doing per-file (rename+)fsync ioengine=psync # make sure we do no seeks, NFS wont be direct=1 iodepth=4 openfiles=4 # model using number of active nfsd threads nrfiles=4 [db_load] description=Database (interactive) workload model ioscheduler=noop overwrite=1 readwrite=rw # mixed sequential reads and writes rwmixread=64 # 64% read, 36% write ratio based on averages direct=1 iodepth=2 # based on average queuelen filesize=150M rate_iops=145,82 bssplit=4k/5,4k/5:8k/90,8k/90:16k/5,16k/5 ioengine=psync iodepth=2 openfiles=1 nrfiles=1 [bi_load] description=Database (business intelligence) workload model ioscheduler=noop overwrite=1 readwrite=rw # mixed sequential reads and writes rwmixread=93 # 93% read, 7% write ratio based on averages direct=1 filesize=150M rate_iops=864,67 bssplit=4k/4,4k/4:48k/90,8k/96:64k/5,:128k/1, ioengine=psync iodepth=8 openfiles=1 nrfiles=1 [log_load] description=Database log writes (background) workload model ioscheduler=noop overwrite=1 readwrite=write # only writes in this load direct=1 ioengine=psync iodepth=4 filesize=100M bs=64k thinktime=10000000 thinktime_blocks=150 nrfiles=1 numjobs=1