From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Time to merge scratch/correct-warning-pos into master, perhaps? Date: Sun, 06 Feb 2022 13:56:34 +0200 Message-ID: <83ee4gyzrh.fsf@gnu.org> References: <83leyq3kfk.fsf@gnu.org> <83a6f631k3.fsf@gnu.org> <838ruq2z5t.fsf@gnu.org> <83v8xt20db.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="13078"; mail-complaints-to="usenet@ciao.gmane.io" Cc: larsi@gnus.org, mattiase@acm.org, gregory@heytings.org, monnier@iro.umontreal.ca, emacs-devel@gnu.org To: Alan Mackenzie Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sun Feb 06 13:01:28 2022 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nGgER-0003HE-ME for ged-emacs-devel@m.gmane-mx.org; Sun, 06 Feb 2022 13:01:27 +0100 Original-Received: from localhost ([::1]:47468 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nGgEQ-000856-9b for ged-emacs-devel@m.gmane-mx.org; Sun, 06 Feb 2022 07:01:26 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:35672) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nGgA0-0005b6-E2 for emacs-devel@gnu.org; Sun, 06 Feb 2022 06:56:53 -0500 Original-Received: from [2001:470:142:3::e] (port=55744 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nGg9z-00060w-SV; Sun, 06 Feb 2022 06:56:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=S9cUF+cVdcrN4vz8sI9gpQ897hNUQQ10zS++1I8ecdI=; b=FGtNUsThawxp jIF5mqIpakh4CBF9eSblhFKjtZU5VwRc5k1rqJZxBF+L7QzwVZoRBVDxqz8H1HAv/8UFalUMWaooG YxynCPOJ3RiVQKiq0zyCJOdaWuUZrIICZxg2nhhdfxjSW7u2qLidXiLukU5hBkm9xsk2x/fm4lJF7 AtgHvmqA8yBWthS56cCvwFkdLwKchNlWIes399xRJ5+QZ2s0O6xzdTxU2a1QD3fA7isg92JgxHx3X +FaT/iHHI9/iyU4PytevR1W5qo90aQ/dmF8qzYZxp+VYRsP0OVGzFCpfZxhzvz+FrRqY0CKz+t43f zMZeSUawmQggNAzHHog8VA==; Original-Received: from [87.69.77.57] (port=4982 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nGg9y-0000OT-Uf; Sun, 06 Feb 2022 06:56:51 -0500 In-Reply-To: (message from Alan Mackenzie on Sun, 6 Feb 2022 11:50:02 +0000) 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" Xref: news.gmane.io gmane.emacs.devel:285962 Archived-At: > Date: Sun, 6 Feb 2022 11:50:02 +0000 > Cc: gregory@heytings.org, monnier@iro.umontreal.ca, mattiase@acm.org, > larsi@gnus.org, emacs-devel@gnu.org > From: Alan Mackenzie > > > So that would mean the slowdown of EQ is due to the cases where the > > objects are not-EQ? > > Yes. > > > Where are the numbers that show how much slower is the current EQ, for > > the case of EQ and not-EQ objects? > > We don't have any such numbers. Is it even possible to measure this? On > earlier processors, we could have just counted up processor cycles used > for each instruction, but not any more. Yes, it's possible: use perf.