Hi -
I must either be doing something wrong or am interpreting the results
wrong. I'm running this command on an NFS mounted filesystem:
$ fio --name=random-write --ioengine=posixaio --rw=randwrite --bs=64k
--size=256m --numjobs=16 --iodepth=16 --runtime=60 --time_based
--end_fsync=1
With this result:
Run status group 0 (all jobs):
WRITE: bw=5258MiB/s (5513MB/s), 152MiB/s-766MiB/s (160MB/s-803MB/s),
io=498GiB (534GB), run=72987-96944msec
The client system is connected to the NFS server over a single 10Gb/s
connection. 5 GB/s far exceeds the max bandwidth of the wire!
What am I missing? I ran the test 3 times, each time checking my
location to make sure I was in an NFS-mounted directory. One test
resulted in 3.5GB/s write performance, which is still greater than the
theoretical max bandwidth for the network connection.
