Re: [PATCH RESEND v2 5/5] sbitmap: correct wake_batch recalculation to avoid potential IO hung

From: Yu Kuai
Date: Mon Dec 26 2022 - 03:57:43 EST


在 2022/12/26 15:50, Yu Kuai 写道:

why using
wake batch of 4 is safe for cards with say 32 tags in case active_users is
currently 32. Because I don't see why that is correct either.


I see, you guys are worried that during the period that some hctx
complete all it's not idle yet. It's right waiter might wait for
other hctx to become idle to be awaken in this case. However, I'm
not sure which way is better.

Ming, do you have any idea?

Thanks,
Kuai