fio seq write performance drop inquiry in kernel v6.6

[jinsu-1]

Is there a reason why the fio seq write performance of 6.6 kernel is poor when the same fio seq write command is executed in v6.1 kernel and v6.6 kernel?

[axboe]

First of all, there are zero details here, so nobody is going to be able to render any qualified opinions on this. Secondly, this sounds like something that isn't a fio issue and should be reported elsewhere.