Questions tagged [fio]
The fio tag has no usage guidance.
8
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Interpreting fio test result
I ran fio on a VM provided by my VPS provider and got this result:
$ fio --name=random-write --ioengine=posixaio --rw=randwrite --bs=4k --numjobs=1 --size=4g --iodepth=1 --runtime=60 --time_based --...
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FIO 17x slower on ZFS than raw device
I have ZFS pool RAIDZ-1 on 4 x 3.84TB SATA3 'enterprise' SSDs.
zfs create rpool/fio
zfs set primarycache=none rpool/fio
fio --ioengine=sync --filename=[X] --direct=1 --rw=read --bs=4K --numjobs=1 --...
- 13
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How to correctly benchmark sequential read speeds on 2.5" hard drive with fio on FreeBSD?
Like suggested in https://askubuntu.com/a/991311 I tested the read speed of a 2.5" spinning hard drive on a TrueNAS/FreeBSD system.
For "Sequential READ speed with big blocks":
fio --...
- 63
-1
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1
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Simulate some process IO with fio or other tool
Is there any way to track a specific process and get stats for disk IO such as queue depth, total reading/writing threads, percent of reads/writes and so on?
The main goal is to use all that ...
- 103
1
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1
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`fio` does not timeout even specified?
# fio --name=random-write --directory=/mnt/test/ --ioengine=posixaio --rw=randwrite -bs=4k --numjobs=1 --size=4g -iodepth=1 -runtime=600 --time_based --end_fsync=1
random-write: (g=0): rw=randwrite, ...
- 235
2
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2
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134
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AWS XFS performance issues. Stripped setup vs single disk setup
I wanted to share an issue (I guess I may be misunderstanding some concepts) that I'm facing with some benchmarks I'm doing to XFS setups, as we are going to recently migrate a service to a new ...
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6
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fio 3.23 core dumps when bench-marking many small files
I have been asked to come up fio benchmark results for this test dataset: 1048576x1MiB. So, overall size is 1TiB. The set contains 2^20 1MiB files. The server runs CentOS Linux release 7.8.2003 (Core)...
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Write performance is 5 times worse with LUKS on top of mdadm RAID10 than without LUKS
I have servers with many NVMe disks. I am testing disk performance with fio using the following:
fio --name=asdf --rw=randwrite --direct=1 --ioengine=libaio --bs=16k --numjobs=8 --size=10G --runtime=...
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