Re: nvme SSD and poor performance
Le 17/08/2021 à 14:02, Dan Ritter a écrit :
The first question is, how slow is this storage?
Here is a good article on using fio:
https://arstechnica.com/gadgets/2020/02/how-fast-are-your-disks-find-out-the-open-source-way-with-fio/
Thanks for the help.
Here are the output of fio tests.
Single 4KiB random write process test:
WRITE: bw=197MiB/s (207MB/s), 197MiB/s-197MiB/s (207MB/s-207MB/s),
io=12.0GiB (12.9GB), run=62271-62271msec
https://pastebin.com/5Cyg9Xvt
16 parallel 64KiB random write processes (two different results, further
tests are closer to the second than the first):
WRITE: bw=523MiB/s (548MB/s), 31.8MiB/s-33.0MiB/s (33.4MB/s-35.6MB/s),
io=35.5GiB (38.1GB), run=63568-69533msec
WRITE: bw=201MiB/s (211MB/s), 11.9MiB/s-14.8MiB/s (12.5MB/s-15.5MB/s),
io=14.3GiB (15.3GB), run=60871-72618msec
https://pastebin.com/XVpPpqsC
https://pastebin.com/HEx8VvhS
Single 1MiB random write process:
WRITE: bw=270MiB/s (283MB/s), 270MiB/s-270MiB/s (283MB/s-283MB/s),
io=16.0GiB (17.2GB), run=60722-60722msec
https://pastebin.com/skk6mi7M
Reply to: