stcs.64k.fio

[global]
rw=readwrite                        # type of load wanted
ioengine=libaio                     # libaio = best for linux, mmap if not supported (Mac)
iodepth=8                           # baseline of a medium used server, increase to 16-32 for more heavily to max used
invalidate=1                        # Invalidate the buffer/page cache parts for this file prior to starting I/O
direct=1                            # bypass os buffers
randrepeat=1                        # run one pass of the defined time
fallocate=none                      # do not pre-allocate space when files are laid down
thread=1                            # only run one thread for each job
fadvise_hint=0                      # don't alert the OS kernel of type of load
time_based=1                        # run on timer vs. rounds
directory=./data                    # directory to store files
file_service_type=sequential        # finish one file write then move to the next
filename_format=cassandra.$filenum  # create named files to be reused in all jobs below
nrfiles=10                          # number of files to read/write
filesize=150m:5g                    # create random sized files to emulate STCS patterns
blocksize=64k                       # default sstable compaction chunk size


[setup]
readwrite=write
end_fsync=1
runtime=1
stonewall

[sstable_writer]
new_group
name=stcs_64k_write
readwrite=write
runtime=60s
# write to 2 files ie default compaction
openfiles=2
write_bw_log=stcs.64k.write
write_lat_log=stcs.64k.write
write_iops_log=stcs.64k.write

[sstable_reader]
name=stcs_64k_read
rw=randread
runtime=60s
openfiles=5
file_service_type=random
write_bw_log=stcs.64k.read
write_lat_log=stcs.64k.read
write_iops_log=stcs.64k.read