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[220.143.223.76]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2cdb73ddb7dsm12068860a91.24.2024.07.30.02.36.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jul 2024 02:36:37 -0700 (PDT) From: Adrian Huang X-Google-Original-From: Adrian Huang To: urezki@gmail.com Cc: adrianhuang0701@gmail.com, ahuang12@lenovo.com, akpm@linux-foundation.org, andreyknvl@gmail.com, bhe@redhat.com, dvyukov@google.com, glider@google.com, hch@infradead.org, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, ryabinin.a.a@gmail.com, sunjw10@lenovo.com, vincenzo.frascino@arm.com Subject: Re: [PATCH 1/1] mm/vmalloc: Combine all TLB flush operations of KASAN shadow virtual address into one operation Date: Tue, 30 Jul 2024 17:36:30 +0800 Message-Id: <20240730093630.5603-1-ahuang12@lenovo.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: D97FA1A000C X-Stat-Signature: ojjo4478mm57p1icnjxbik76hocamzdk X-HE-Tag: 1722332199-34480 X-HE-Meta: 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 xfVtvp+8 hQfjf0ejhNdKVNAbVJgE/M/4rCx8P13LLAZMFYrRwoxWu8vWxg0bbd0QNott+tXlBoiiETXa8r+l8wbEe6kmSWdfMleGcEd24Gawf7lwO41Sikia82rbS+eJREBTtzq9Lh52Ae7FbL/kjyaWLEio1a8ml0irsbEoM31uA0D9zUdG6S6dRkwGlR+ywsttyDlZBMFpzuiaJh+lbNK04Mo/50xXMV8qVV28cbBfksiSuwdicLLqWiiQp1O+8CS2dckOOpTdnGJbEOncW8jrBfqmXgPn/4MuqdV94c1w7ZhkJsHuh/QoUwomCE+bJRpPn9ip8kwkAfUFjzOh//PzsDeokHQQtpEMHmyAEq+JbRJ5mLhi3mzgarTrfl+ReYXsu/vo0dGqoj4x52mE+lW40EChML0/H8K8l4Y4xcSpY X-Bogosity: Ham, tests=bogofilter, spamicity=0.000257, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jul 29, 2024 at 7:29 PM Uladzislau Rezki wrote: > It would be really good if Adrian could run the "compiling workload" on > his big system and post the statistics here. > > For example: > a) v6.11-rc1 + KASAN. > b) v6.11-rc1 + KASAN + patch. Sure, please see the statistics below. Test Result (based on 6.11-rc1) =============================== 1. Profile purge_vmap_node() A. Command: trace-cmd record -p function_graph -l purge_vmap_node make -j $(nproc) B. Average execution time of purge_vmap_node(): no patch (us) patched (us) saved ------------- ------------ ----- 147885.02 3692.51 97% C. Total execution time of purge_vmap_node(): no patch (us) patched (us) saved ------------- ------------ ----- 194173036 5114138 97% [ftrace log] Without patch: https://gist.github.com/AdrianHuang/a5bec861f67434e1024bbf43cea85959 [ftrace log] With patch: https://gist.github.com/AdrianHuang/a200215955ee377288377425dbaa04e3 2. Use `time` utility to measure execution time A. Command: make clean && time make -j $(nproc) B. The following result is the average kernel execution time of five-time measurements. ('sys' field of `time` output): no patch (seconds) patched (seconds) saved ------------------ ---------------- ----- 36932.904 31403.478 15% [`time` log] Without patch: https://gist.github.com/AdrianHuang/987b20fd0bd2bb616b3524aa6ee43112 [`time` log] With patch: https://gist.github.com/AdrianHuang/da2ea4e6aa0b4dcc207b4e40b202f694