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Tue, 13 Aug 2024 13:11:44 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 7myfOpBbu2buDwAAD6G6ig (envelope-from ); Tue, 13 Aug 2024 13:11:44 +0000 Date: Tue, 13 Aug 2024 15:11:44 +0200 From: Daniel Wagner To: Ming Lei Cc: Jens Axboe , Keith Busch , Sagi Grimberg , Thomas Gleixner , Christoph Hellwig , "Martin K. Petersen" , John Garry , "Michael S. Tsirkin" , Jason Wang , Kashyap Desai , Sumit Saxena , Shivasharan S , Chandrakanth patil , Sathya Prakash Veerichetty , Suganath Prabu Subramani , Nilesh Javali , GR-QLogic-Storage-Upstream@marvell.com, Jonathan Corbet , Frederic Weisbecker , Mel Gorman , Hannes Reinecke , Sridhar Balaraman , "brookxu.cn" , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, virtualization@lists.linux.dev, megaraidlinux.pdl@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, MPT-FusionLinux.pdl@broadcom.com, storagedev@microchip.com, linux-doc@vger.kernel.org Subject: Re: [PATCH v3 15/15] blk-mq: use hk cpus only when isolcpus=io_queue is enabled Message-ID: <6449daa0-b8e1-4c5d-86ad-19dada7c849e@flourine.local> References: <20240806-isolcpus-io-queues-v3-0-da0eecfeaf8b@suse.de> <20240806-isolcpus-io-queues-v3-15-da0eecfeaf8b@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 25794203AD X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[99.99%]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[34]; FUZZY_BLOCKED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; FREEMAIL_CC(0.00)[kernel.dk,kernel.org,grimberg.me,linutronix.de,lst.de,oracle.com,redhat.com,broadcom.com,marvell.com,lwn.net,suse.de,parallelwireless.com,gmail.com,vger.kernel.org,lists.infradead.org,lists.linux.dev,microchip.com]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TAGGED_RCPT(0.00)[]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; R_RATELIMIT(0.00)[to_ip_from(RLbomrtoisjzkgzhj6iko5ju7u)]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,flourine.local:mid,suse.de:dkim] X-Spam-Score: -3.01 X-Rspamd-Action: no action X-Spam-Flag: NO X-Spam-Level: On Tue, Aug 13, 2024 at 08:56:02PM GMT, Ming Lei wrote: > With patch 14 and the above change, managed irq's affinity becomes not > matched with blk-mq mapping any more. Ah, got it. The problem here is that I need to update also the irq affinity mask for the hctx when offlining a CPU.