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Example of FIO workload for libpmem engine
#
# run command for this workload:
# numactl -N 0 fio LibpmemSeqR.fio # it binds this FIO workload to CPU 0 only. It should be set according to /dev/pmem6 socket's number
#
[global]
thread
group_reporting
norandommap
overwrite=1
thinktime=0
sync=0
direct=0
ioengine=libpmem
iodepth=1
#
# Preparing namespace with commands:
# mkfs.ext4 /dev/pmem6
# mount /dev/pmem6 /mnt/pmem6/ -o dax
#
directory=/mnt/pmem6 # I'm working on directory; each of 'numjobs' gets its own file to work with
size=50GB # Each file will have this size; so in summary they will fill the whole namespace
unlink=0
time_based
runtime=300
ramp_time=30
[SeqRead]
bs=1M
numjobs=16 # depending on CPU core count more can be better, but also can be a bottleneck
rw=randrw
rwmixread=100
percentage_random=0
@jrgruher

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jrgruher commented Feb 19, 2019

Does the libpmem io engine support io depths other than 1?

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