Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)

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To: Jason Wang <jasowang@xxxxxxxxxx>
Subject: Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
From: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Date: Mon, 11 Dec 2023 11:53:56 -0500
Cc: Tobias Huschle <huschle@xxxxxxxxxxxxx>, Abel Wu <wuyun.abel@xxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Linux Kernel <linux-kernel@xxxxxxxxxxxxxxx>, kvm@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx
In-reply-to: <CACGkMEuSGT-e-i-8U7hum-N_xEnsEKL+_07Mipf6gMLFFhj2Aw@mail.gmail.com>
References: <20231122100016.GO8262@noisy.programming.kicks-ass.net> <6564a012.c80a0220.adb78.f0e4SMTPIN_ADDED_BROKEN@mx.google.com> <d4110c79-d64f-49bd-9f69-0a94369b5e86@bytedance.com> <07513.123120701265800278@us-mta-474.us.mimecast.lan> <20231207014626-mutt-send-email-mst@kernel.org> <56082.123120804242300177@us-mta-137.us.mimecast.lan> <20231208052150-mutt-send-email-mst@kernel.org> <53044.123120806415900549@us-mta-342.us.mimecast.lan> <20231209053443-mutt-send-email-mst@kernel.org> <CACGkMEuSGT-e-i-8U7hum-N_xEnsEKL+_07Mipf6gMLFFhj2Aw@mail.gmail.com>

On Mon, Dec 11, 2023 at 03:26:46PM +0800, Jason Wang wrote:
> > Try reducing the VHOST_NET_WEIGHT limit and see if that improves things any?
> 
> Or a dirty hack like cond_resched() in translate_desc().

what do you mean, exactly?

-- 
MST

Follow-Ups:
- Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Jason Wang

References:
- Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Peter Zijlstra
- Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Abel Wu
- Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Michael S. Tsirkin
- Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Michael S. Tsirkin
- Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Michael S. Tsirkin
- Re: Re: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement)
  - From: Jason Wang

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