Hi there,
I'm trying to run sequential and random reads/writes in parallel using
the io_uring engine with the HIPRI flag activated to enable polling. The
file size is 200G, the number of fio threads is 4. The --size flags is
set to 200/4, and the --offset_increment is set to 25%. I could
effectively do it with pvsync2 engine but when I switch to io_uring the
workloads immediately (they do not even work for 1 sec) fail with these
errors:
fio: io_u error on file /path/to/file: Operation not supported: write
offset=3238043648, buflen=4096
fio: io_u error on file /path/to/file: Operation not supported: write
offset=88715874304, buflen=4096
fio: io_u error on file /path/to/file: Operation not supported: write
offset=174739943424, buflen=4096
fio: io_u error on file /path/to/file: Operation not supported: write
offset=112642154496, buflen=4096
The offsets are under 200G, I don't understand why it's returning those
errors. Can someone help please?.
Thank you in advance.
Hamilton.
