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Sat, 10 Aug 2024 15:09:59 +0200 (CEST) From: Ihor Radchenko To: Visuwesh Cc: emacs-orgmode@gnu.org Subject: Re: [BUG] org-persist-write-all is slow because of use of pp [9.8-pre (release_9.7.8-713-g62cbac @ /home/viz/lib/emacs/straight/build/org/)] In-Reply-To: <87sevcjzm2.fsf@gmail.com> References: <87r0axvu7y.fsf@gmail.com> <87ttfs35mw.fsf@localhost> <87sevcjzm2.fsf@gmail.com> Date: Sat, 10 Aug 2024 13:11:11 +0000 Message-ID: <87le1434ls.fsf@localhost> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=185.67.36.65; envelope-from=yantar92@posteo.net; helo=mout01.posteo.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-orgmode@gnu.org X-Mailman-Version: 2.1.29 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-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Queue-Id: 1F72255305 X-Migadu-Scanner: mx13.migadu.com X-Migadu-Spam-Score: -9.59 X-Spam-Score: -9.59 X-TUID: 2mbTeHcf6JfE Visuwesh writes: >> So much for the idea of readable index file. > > It is unfortunate, indeed, since the pp version of the file is really > handy when looking into org-persist issues. Though, I must mention that > the slowness reported in OP is compounded by my fairly aggressive CPU > governor settings (in hopes of improving battery life). AFAIK, the underlying cause is bad scaling of `pp' algo. So, it will only get worse (like O(N^2) worse) with increasing number of index entries. Different CPU settings will just change the threshold when the problem is triggered. -- Ihor Radchenko // yantar92, Org mode contributor, Learn more about Org mode at . Support Org development at , or support my work at