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[173.79.56.208]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-466871721c2sm45002921cf.17.2024.11.27.08.28.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Nov 2024 08:28:46 -0800 (PST) From: Gregory Price To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, nehagholkar@meta.com, abhishekd@meta.com, kernel-team@meta.com, david@redhat.com, ying.huang@intel.com, nphamcs@gmail.com, gourry@gourry.net, akpm@linux-foundation.org, hannes@cmpxchg.org, feng.tang@intel.com, kbusch@meta.com Subject: [PATCH 3/4] vmstat: add page-cache numa hints Date: Wed, 27 Nov 2024 03:22:00 -0500 Message-ID: <20241127082201.1276-4-gourry@gourry.net> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241127082201.1276-1-gourry@gourry.net> References: <20241127082201.1276-1-gourry@gourry.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Count non-page-fault events as page-cache numa hints instead of fault hints in vmstat. Signed-off-by: Gregory Price --- include/linux/vm_event_item.h | 2 ++ mm/memory.c | 15 ++++++++++----- mm/vmstat.c | 2 ++ 3 files changed, 14 insertions(+), 5 deletions(-) diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index f70d0958095c..9fee15d9ba48 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -63,6 +63,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, NUMA_HUGE_PTE_UPDATES, NUMA_HINT_FAULTS, NUMA_HINT_FAULTS_LOCAL, + NUMA_HINT_PAGE_CACHE, + NUMA_HINT_PAGE_CACHE_LOCAL, NUMA_PAGE_MIGRATE, #endif #ifdef CONFIG_MIGRATION diff --git a/mm/memory.c b/mm/memory.c index a373b6ad0b34..35b72a1cfbd5 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5507,11 +5507,16 @@ int numa_migrate_check(struct folio *folio, struct = vm_fault *vmf, *last_cpupid =3D folio_last_cpupid(folio); =20 #ifdef CONFIG_NUMA_BALANCING - count_vm_numa_event(NUMA_HINT_FAULTS); - count_memcg_folio_events(folio, NUMA_HINT_FAULTS, 1); - if (folio_nid(folio) =3D=3D numa_node_id()) { - count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL); - *flags |=3D TNF_FAULT_LOCAL; + if (vmf) { + count_vm_numa_event(NUMA_HINT_FAULTS); + count_memcg_folio_events(folio, NUMA_HINT_FAULTS, 1); + if (folio_nid(folio) =3D=3D numa_node_id()) { + count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL); + *flags |=3D TNF_FAULT_LOCAL; + } + } else { + count_vm_numa_event(NUMA_HINT_PAGE_CACHE); + count_memcg_folio_events(folio, NUMA_HINT_PAGE_CACHE, 1); } #endif =20 diff --git a/mm/vmstat.c b/mm/vmstat.c index 4d016314a56c..bcd9be11e957 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1338,6 +1338,8 @@ const char * const vmstat_text[] =3D { "numa_huge_pte_updates", "numa_hint_faults", "numa_hint_faults_local", + "numa_hint_page_cache", + "numa_hint_page_cache_local", "numa_pages_migrated", #endif #ifdef CONFIG_MIGRATION --=20 2.43.0