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[83.59.162.106]) by smtp.gmail.com with ESMTPSA id f7sm5624902wrx.64.2020.10.14.07.53.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 14 Oct 2020 07:53:24 -0700 (PDT) Subject: Re: [RFC PATCH 0/3] target/mips: Make the number of TLB entries a CPU property To: Richard Purdie , "Victor Kamensky (kamensky)" , "qemu-devel@nongnu.org" References: <20201013132535.3599453-1-f4bug@amsat.org> <515ec755fd8d7219040283f0c27346d762ee3c29.camel@linuxfoundation.org> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: Date: Wed, 14 Oct 2020 16:53:23 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1 MIME-Version: 1.0 In-Reply-To: <515ec755fd8d7219040283f0c27346d762ee3c29.camel@linuxfoundation.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::441; envelope-from=philippe.mathieu.daude@gmail.com; helo=mail-wr1-x441.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , Richard Henderson , Khem Raj , Aurelien Jarno , Aleksandar Markovic Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 10/14/20 9:14 AM, Richard Purdie wrote: > On Wed, 2020-10-14 at 01:36 +0000, Victor Kamensky (kamensky) wrote: >> Thank you very much for looking at this. I gave a spin to >> your 3 patch series in original setup, and as expected with >> '-cpu 34Kf,tlb-entries=64' option it works great. >> >> If nobody objects, and your patches could be merged, we >> would greatly appreciate it. > > Speaking as one of the Yocto Project maintainers, this is really > helpful for us, thanks! > > qemumips is one of our slowest platforms for automated testing so this > performance improvement helps a lot. Could you try Richard's suggestion? Using '-cpu P5600' instead? It is available in Linux since v5.8. > > Cheers, > > Richard > >