When using fio to perform read and verify data with the time_based option enabled, fio exits after the first verification is completed.

[Michael-Duan1]

Please acknowledge the following before creating a ticket

• I have read the GitHub issues section of REPORTING-BUGS.

Description of the bug:

When using fio to perform read and verify data with the time_based option enabled, fio exits after the first verification is completed.
Because “ddir_rw_sum(td->bytes_done)“ all is Zero。

Environment:
Linux
fio version:
fio-3.36
Reproduction steps

sudo ./fio --ioengine=libaio --bs=128k --rw=write --verify=crc32c --filename=/dev/sda --name=test --size=1g
sudo ./fio --ioengine=libaio --bs=128k --time_based --rw=read --verify=crc32c --filename=/dev/sda --runtime=10 --test --size=1g

[vincentkfu]

This seems to only occur with async ioengines. I get the full 10s with --ioengine=psync.