From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id EKDJKyawGWCdfQAA0tVLHw (envelope-from ) for ; Tue, 02 Feb 2021 20:03:50 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id wICcJyawGWBUeAAAB5/wlQ (envelope-from ) for ; Tue, 02 Feb 2021 20:03:50 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 1E0AB9403A3 for ; Tue, 2 Feb 2021 20:03:50 +0000 (UTC) Received: from localhost ([::1]:45430 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l71tj-0005S4-Nw for larch@yhetil.org; Tue, 02 Feb 2021 15:03:45 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43130) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l71sS-0005Qg-Qd for emacs-orgmode@gnu.org; Tue, 02 Feb 2021 15:02:20 -0500 Received: from ciao.gmane.io ([116.202.254.214]:44902) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l71sR-0006TI-FW for emacs-orgmode@gnu.org; Tue, 02 Feb 2021 15:02:20 -0500 Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1l71sO-0009zp-Af for emacs-orgmode@gnu.org; Tue, 02 Feb 2021 21:02:16 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: emacs-orgmode@gnu.org From: Nick Dokos Subject: Re: Get =#+RESULTS= without re-evaluating source code block? Date: Tue, 02 Feb 2021 15:02:08 -0500 Message-ID: <875z3az1a7.fsf@alphaville.usersys.redhat.com> References: <1342984.1611804377@apollo2.minshall.org> Mime-Version: 1.0 Content-Type: text/plain User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cancel-Lock: sha1:MxRv3uXbIdpZX3cdi+UShA4EZp0= Received-SPF: pass client-ip=116.202.254.214; envelope-from=geo-emacs-orgmode@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: 5 X-Spam_score: 0.5 X-Spam_bar: / X-Spam_report: (0.5 / 5.0 requ) BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FORGED_GMAIL_RCVD=1, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, NML_ADSP_CUSTOM_MED=0.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-orgmode@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: "Emacs-orgmode" X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -0.76 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of emacs-orgmode-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=emacs-orgmode-bounces@gnu.org X-Migadu-Queue-Id: 1E0AB9403A3 X-Spam-Score: -0.76 X-Migadu-Scanner: scn1.migadu.com X-TUID: 2BeUf9DBMDJ9 John Kitchin writes: > I discovered that it matters a lot which block you cache. You have to > cache the long running block. I had put cache on the block with noweb > expansion, and then the long running block still runs every time. That > was a surprise to me, since nothing was changing in that block, so I > thought it would just use the cached result. > Just to elaborate a bit: Org mode checks whether to reevaluate a cached block by checksumming it and seeing if the sum is different from before. That's why you have to mark the actual block for caching, not its callers. -- Nick "There are only two hard problems in computer science: cache invalidation, naming things, and off-by-one errors." -Martin Fowler