From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.devel Subject: Re: macOS metal rendering engine in mac port Date: Sat, 29 May 2021 21:52:00 +0300 Message-ID: <6a0e9637-3ef3-4437-16d3-1877d1a63940@yandex.ru> References: <83k0ni6pje.fsf@gnu.org> <83eedq6mvm.fsf@gnu.org> <83zgwd6gk3.fsf@gnu.org> <83bl8t5vu6.fsf@gnu.org> <837djh5tca.fsf@gnu.org> <4bb3fc5e-5aad-c888-8dfe-d51115cdd61a@yandex.ru> <835yz15rv2.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34836"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 Cc: alan@idiocy.org, aaronjensen@gmail.com, emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat May 29 20:53:36 2021 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 1ln45W-0008uW-Oq for ged-emacs-devel@m.gmane-mx.org; Sat, 29 May 2021 20:53:34 +0200 Original-Received: from localhost ([::1]:48258 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ln45V-0001Ij-Qa for ged-emacs-devel@m.gmane-mx.org; Sat, 29 May 2021 14:53:33 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39446) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ln446-0000Fk-6G for emacs-devel@gnu.org; Sat, 29 May 2021 14:52:06 -0400 Original-Received: from mail-wm1-x331.google.com ([2a00:1450:4864:20::331]:40578) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ln444-0003H3-94; Sat, 29 May 2021 14:52:05 -0400 Original-Received: by mail-wm1-x331.google.com with SMTP id f6-20020a1c1f060000b0290175ca89f698so6350572wmf.5; Sat, 29 May 2021 11:52:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=6wz2A2r+pRANlaoqSG7lsd8sQSGHeDCFpoD00cXwz2Y=; b=gUDgYaN+mTFI+Pt0JpeGSaj9rL9vl2iebqWhBSIVXRBbI8nj0x/0Obv6oD6MAyVzK8 DkC5Zb5Z8JE7lwnN9RhUXOmSqSzv2SISud5rAdqQYaTTecHpXNvcRiDs2ZTG44w4MeCR l9TtqpZhw6joMcdme47yawTVaI+8ZB40FzKvefI1u0JKEP7Vdz110v0Js92yFw90VbS7 O+2w5YFTp4+I8162i+BBKoyBvKji/c6QrTPJ62JIO0zYxtYLrSfH8UmGtQWLatmPKpjs zpw28a8mj7tift/t1ZZPp8xIchEstdheem9J6RT6Feapuq/TvioE988QvprC/4ZLQZhx ur6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=6wz2A2r+pRANlaoqSG7lsd8sQSGHeDCFpoD00cXwz2Y=; b=hlNbvLpH6UfxVXZH119/bC8eTOonAYb7qUccb4fVCco/8GNpoa5adrk/0778+nzDfk EmdqbXXR+GDcGc49+wDzqBi4vtt0Ok/J4UqY+ePOCzeNhm1nbJW7ahyZERr3tIyWzv8w VAwqBIaDCnjSk16v6mie65pdgb+t1v6XsTYDfxJiFy6bOutt99+SaPbLHe8vpcCYs3Gu TV036fUz2vxzqt9GM2zB/JKVBlub3niAKsWj/ebCK4WrqRrP1LWoZwPWtB85h90MwUFP NVIMkcUxNVBzgfLgPd4w0Heo67kV2vxfGEAojr9W30rjsZkBg6yL/AorF0zh6CC8IW15 vAHg== X-Gm-Message-State: AOAM532azTiW36x4be2W2KZ+4HtHvLwyk7d+MYZ9MKA7sfRDXv0HlEHM l10DeY8cwsOEc7AcVx1QS6Q+ejU9xgU= X-Google-Smtp-Source: ABdhPJy0eHKvG3bF4XbcUl+2ypVq3PcGb763EDoKW1rChYPYB/sOxkPeyfQtxN5VT/EEA97R8AI60A== X-Received: by 2002:a05:600c:1994:: with SMTP id t20mr13096621wmq.51.1622314322399; Sat, 29 May 2021 11:52:02 -0700 (PDT) Original-Received: from [192.168.0.6] ([46.251.119.176]) by smtp.googlemail.com with ESMTPSA id q20sm21155999wmq.2.2021.05.29.11.52.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 29 May 2021 11:52:01 -0700 (PDT) In-Reply-To: <835yz15rv2.fsf@gnu.org> Content-Language: en-US Received-SPF: pass client-ip=2a00:1450:4864:20::331; envelope-from=raaahh@gmail.com; helo=mail-wm1-x331.google.com 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=0.248, 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: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 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:270090 Archived-At: On 29.05.2021 21:15, Eli Zaretskii wrote: > This: > > https://www.britannica.com/science/time-perception/Perceived-duration > > says 0.1 sec of visual experience is needed to perceive time duration. > And there are other similar sources. It is also consistent with my > own experience, from the time when I measure performance of > bidirectional display and compared it with my subjective notion of > "delay": anything below 100ms was barely tangible, anything below 50ms > was perceived as "instantaneous". I think repeating the same action multiple times can fine-tune one's perception. Either way, perhaps we can agree that the extra 10-20ms, even if hard to notice by themselves, can move the perception of some compound event from "instantaneous" to "tangible". Here's that bug I was referring to anyway: https://github.com/company-mode/company-mode/issues/1073