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Tue, 19 Mar 2024 08:21:06 +0000 (GMT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Tue, 19 Mar 2024 09:21:06 +0100 From: Tobias Huschle To: "Michael S. Tsirkin" Cc: Luis Machado , Jason Wang , Abel Wu , Peter Zijlstra , Linux Kernel , kvm@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, nd Subject: Re: EEVDF/vhost regression (bisected to 86bfbb7ce4f6 sched/fair: Add lag based placement) In-Reply-To: <20240315062839-mutt-send-email-mst@kernel.org> References: <92916.124010808133201076@us-mta-622.us.mimecast.lan> <20240121134311-mutt-send-email-mst@kernel.org> <07974.124020102385100135@us-mta-501.us.mimecast.lan> <20240201030341-mutt-send-email-mst@kernel.org> <89460.124020106474400877@us-mta-475.us.mimecast.lan> <20240311130446-mutt-send-email-mst@kernel.org> <73123.124031407552500165@us-mta-156.us.mimecast.lan> <20240314110649-mutt-send-email-mst@kernel.org> <84704.124031504335801509@us-mta-515.us.mimecast.lan> <20240315062839-mutt-send-email-mst@kernel.org> Message-ID: X-Sender: huschle@linux.ibm.com Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Ig_8hUMQ62rKjIW6cFJGHLt5KlvIVVhe X-Proofpoint-ORIG-GUID: oITQulY1q7P3fcJ97zGvdqWMwMGoRiQd X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-18_12,2024-03-18_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 phishscore=0 impostorscore=0 clxscore=1015 spamscore=0 adultscore=0 mlxscore=0 lowpriorityscore=0 mlxlogscore=724 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2403140000 definitions=main-2403190063 On 2024-03-15 11:31, Michael S. Tsirkin wrote: > On Fri, Mar 15, 2024 at 09:33:49AM +0100, Tobias Huschle wrote: >> On Thu, Mar 14, 2024 at 11:09:25AM -0400, Michael S. Tsirkin wrote: >> > > > Could you remind me pls, what is the kworker doing specifically that > vhost is relying on? The kworker is handling the actual data moving in memory if I'm not mistaking.