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[89.7.204.205]) by smtp.gmail.com with ESMTPSA id g6-20020a05600c4ec600b003a3199c243bsm25107530wmq.0.2022.08.08.04.54.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Aug 2022 04:54:26 -0700 (PDT) From: Juan Quintela To: ling xu Cc: qemu-devel@nongnu.org, dgilbert@redhat.com Subject: Re: [PATCH v3 0/2] This patch updates runtime check of AVX512 In-Reply-To: <20220808074837.1484760-1-ling1.xu@intel.com> (ling xu's message of "Mon, 8 Aug 2022 15:48:35 +0800") References: <20220808074837.1484760-1-ling1.xu@intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) Date: Mon, 08 Aug 2022 13:54:25 +0200 Message-ID: <87wnbjlzm6.fsf@secure.mitica> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: quintela@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" ling xu wrote: > This patch updates runtime check of AVX512 and update avx512 support for > xbzrle_encode_buffer function to accelerate xbzrle encoding speed. > > The runtime check is updated in meson.build and meson_options.txt. > > The updated AVX512 algorithm is provided in ram.c, xbzrle.c and > xbzrle.h. > > The test code is provided in test-xbzrle.c. > > Previous discussion is refered below: > https://www.mail-archive.com/qemu-devel@nongnu.org/msg903520.html > > ling xu (2): > Update AVX512 support for xbzrle_encode_buffer function > Test code for AVX512 support for xbzrle_encode_buffer I think this v3 and previous v3 are identical except for mthe link to the previous discussion. Later, Juan.