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[84.176.194.49]) by smtp.gmail.com with ESMTPSA id l20-20020a170906415400b009930c80b87csm4374209ejk.142.2023.08.13.01.06.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 13 Aug 2023 01:06:53 -0700 (PDT) Content-Language: en-US Received-SPF: pass client-ip=2a00:1450:4864:20::62d; envelope-from=gerd.moellmann@gmail.com; helo=mail-ej1-x62d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:308656 Archived-At: > Okay, but here it isn't about joining the CL standard, it is > the situation that we have "the Lisp editor" yet our Lisp is > much slower than other people's Lisp, and for no good reason > what I can understand as Emacs is C, and SBCL is C. What's the > difference, why is one so much faster than the other? Just wanted to mention that SBCL is not implemented in C. It only has a small C runtime containing various GC alternatives and hardware/OS dependent stuff. The rest is Lisp, including bignums and compiler.