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Tue, 29 Sep 2026 22:13:30 -0700 (PDT) From: Kayra Cizmeci To: tim.c.chen@linux.intel.com Cc: KPrateek.Nayak@amd.com, Vishal.Badole@amd.com, justinstitt@google.com, kayracizmeci@gmail.com, klaus.kusche@computerix.info, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, mario.limonciello@amd.com, mingo@redhat.com, morbo@google.com, nathan@kernel.org, ndesaulniers@google.com, peterz@infradead.org, platform-driver-x86@vger.kernel.org, ricardo.neri@intel.com, stable@vger.kernel.org, x86@kernel.org, yu.c.chen@intel.com Subject: Re: [PATCH] sched/cache: Honor asym packing over cache aware scheduling on hybrid system Date: Wed, 30 Sep 2026 08:13:27 +0300 Message-ID: <20260930051327.206529-1-kayracizmeci@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <7790ab6c5da3aeac42f6878f0a167c6cddebb354.camel@linux.intel.com> References: <7790ab6c5da3aeac42f6878f0a167c6cddebb354.camel@linux.intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > Are you saying that we should update the first chunk to add an env->idle check > to match the asym_packing migration pre-requisite? Like below? > @@ -10847,6 +10849,10 @@ static enum llc_mig can_migrate_llc_task(struct lb_env *env, > if (cpu < 0 || cpus_share_cache(src_cpu, dst_cpu)) > return mig_unrestricted; > + /* Prioritize asym packing over cache awareness */ > + if (env->idle && sched_asym(env->sd, dst_cpu, src_cpu)) > + return mig_unrestricted; > + > I think this is a valid point. Yeah. :>. Thaks, Kayra > Tim