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From: Muchun Song In-Reply-To: <20240126152411.1238072-8-gang.li@linux.dev> Date: Mon, 29 Jan 2024 11:56:47 +0800 Cc: David Hildenbrand , David Rientjes , Mike Kravetz , Andrew Morton , Tim Chen , Linux-MM , LKML , ligang.bdlg@bytedance.com Content-Transfer-Encoding: 7bit Message-Id: References: <20240126152411.1238072-1-gang.li@linux.dev> <20240126152411.1238072-8-gang.li@linux.dev> To: Gang Li X-Migadu-Flow: FLOW_OUT X-Rspamd-Queue-Id: B7FC6100014 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: hewze7oy6cs33nrkzhgi3tmrsgnhkzrq X-HE-Tag: 1706500648-488600 X-HE-Meta: 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 ALcWgWbG xyqsg9tj/aFdzYi7l5fqxOkwzNLfDnIM0raK1s/Z9Q7gUbBb5i9yx7g1ameT5xtunAJHE1LzZqQWO+ZUiBQZQgVbRAVG1bAyQ7yFD95LIB9JeJOGdWr822w1xtXJZ05X/8N7Cr8KVGfhmRqsXvxbv8Z0jCmatCaV0p8QxNLujk4Iu6OsJhGu+QnHoq6mWnpqhPfF2 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 Jan 26, 2024, at 23:24, Gang Li wrote: > > Optimizing the initialization speed of 1G huge pages through > parallelization. > > 1G hugetlbs are allocated from bootmem, a process that is already > very fast and does not currently require optimization. Therefore, > we focus on parallelizing only the initialization phase in > `gather_bootmem_prealloc`. > > Here are some test results: > test case no patch(ms) patched(ms) saved > ------------------- -------------- ------------- -------- > 256c2T(4 node) 1G 4745 2024 57.34% > 128c1T(2 node) 1G 3358 1712 49.02% > 12T 1G 77000 18300 76.23% > > Signed-off-by: Gang Li > Tested-by: David Rientjes Reviewed-by: Muchun Song Thanks.