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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!3.eu.feeder.erje.net!feeder.erje.net!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Mild Shock Newsgroups: comp.lang.python Subject: Re: ANN: Dogelog Player 1.2.5 (bun.js Support) Date: Mon, 13 Jan 2025 17:46:33 +0100 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 13 Jan 2025 16:46:31 -0000 (UTC) Injection-Info: solani.org; logging-data="64322"; mail-complaints-to="abuse@news.solani.org" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0 SeaMonkey/2.53.20 Cancel-Lock: sha1:RugtdCTFq+wliTois/+rtU0EtsA= X-User-ID: eJwFwQEBwCAMAzBLL6WMyRmD+pfwRFxYHXNpTVk2BfU+szKL2EYdYxT9Oi+RHXo0jsSbPviuc1PVbyCCP2E7FcY= In-Reply-To: Bytes: 3634 Lines: 77 The recent release of Dogelog Player featured new libraries library(hash) and library(tree). Those libraries provided non-backtracking operations based on change_arg/3. We report on some additions to those libraries that now also provide backracking operations without change_arg/3. As a running test case we used a counter model finder to answer the question is every group commutative? Although such problems have a nagging high complexity using our backtracking red black trees gave a 28% boost and our backtracking hash tables gave an additional 23% boost. See also: Backtracking library(hash) for Dogelog Player https://x.com/dogelogch/status/1878844643410092296 Backtracking library(hash) for Dogelog Player https://www.facebook.com/groups/dogelog Mild Shock schrieb: > > The Dogelog Player Prolog system runs on top of > either JavaScript, Python and Java. Initially > developed for the browser it supports single > threaded execution with cooperative tasks and > an event based I/O processing. We recently added > a new library(crypto) to compute file checksums. > > For simplicity we only provide the functionality > of a message digest. A use case for a message > digest is the computation of a checksum for a file. > We only reach around 1MB/s SHA-256 throughput. > We blame the many parts of our I/O that are > 100% Prolog based. > > See also: > > New library(crypto) for Dogelog Player > https://twitter.com/dogelogch/status/1867225201106366624 > > New library(crypto) for Dogelog Player > https://www.facebook.com/groups/dogelog > > Mild Shock schrieb: >> Dear All, >> >> We are happy to announce a new edition of >> the Dogelog player: >> >> - New library(util/tree): >>    This is the second library we have created that >> is based on the change_arg/3 predicate and provides >> a non-backtracking capable data structure.  This time >> we created red-black trees. >> >> - Improved library(aggregate): >>    First, a new implementation using library(util/tree) >> was planned.  But we finally decided to use the faster >> library(util/hash) together with keysort/2.  A new >> predicate unnumbervars/3 ensures the creation >> of variables. >> >> - bun.js Support: >>    To use bun.js, we fixed a programming error by >> replacing our OS success test with falsy tests (!err). >> We found 4 non-critical discrepancies with node.js. >> The performance lags slightly behind node.js because >> the JavaScript version is older. >> >> Have Fun! >> >> Jan Burse, http://www.xlog.ch/ , 05.12.2024 >