Messages in this thread |  | | Subject | Re: [PATCH RESEND v2 5/5] sbitmap: correct wake_batch recalculation to avoid potential IO hung | From | Kemeng Shi <> | Date | Mon, 16 Jan 2023 10:15:08 +0800 |
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on 1/3/2023 10:12 AM, Kemeng Shi wrote: > Friendly ping... > > on 12/26/2022 4:57 PM, Yu Kuai wrote: >> 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 >> > Hi Jan. The magic batch 4 seems just for performance initially while lacks of full consideration. And there is no better solution provided in futher. Do you have any suggestion that I can do to make more progress.
-- Best wishes Kemeng Shi
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