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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20190211103927.GA118071@gmail.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Mon, 11 Feb 2019 13:33:03 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190211_053304_504076_F96FB4C8 X-CRM114-Status: GOOD ( 17.35 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , Will Deacon , "H. Peter Anvin" , sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, Davidlohr Bueso , linux-hexagon@vger.kernel.org, x86@kernel.org, Ingo Molnar , linux-xtensa@linux-xtensa.org, Arnd Bergmann , linuxppc-dev@lists.ozlabs.org, Borislav Petkov , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Linus Torvalds , linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, Andrew Morton , Tim Chen Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 02/11/2019 05:39 AM, Ingo Molnar wrote: > * Ingo Molnar wrote: > >> Sounds good to me - I've merged this patch, will push it out after >> testing. > Based on Peter's feedback I'm delaying this - performance testing on at > least one key ll/sc arch would be nice indeed. > > Thanks, > > Ingo Yes, I will twist the generic code to generate better code. As I said in the commit log, only x86, ia64 and alpha provide assembly code to replace the generic C code. The ll/sc archs that I have access to (ARM64, ppc) are all using the generic C code anyway. I actually had done some performance measurement on both those platforms and didn't see any performance difference. I didn't include them as they were using generic code before. I will rerun the tests after I twisted the generic C code. Thanks, Longman _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel