From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.2 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: from zero.zsh.org (zero.zsh.org [IPv6:2a02:898:31:0:48:4558:7a:7368]) by inbox.vuxu.org (Postfix) with ESMTP id 6F52724F05 for ; Sun, 25 Feb 2024 07:54:24 +0100 (CET) ARC-Seal: i=1; cv=none; a=rsa-sha256; d=zsh.org; s=rsa-20210803; t=1708844064; b=KNWIzQ6Vh/vcNad5/MJCFWuDRefIlkl4x5QfJTrYiBwoiBiqH9O4lUlfdbn6mng41fLMFyFclM kUy1zZv+fiV+ByjsOv/r8NagQxZ0bWs8ejUOjDf8Zjaq7LdijboAe05iFx8kWDtEfeqzXgGpJe itMh1cxe0FTrxgjgNDXFYvfqW3JepCrDom15CNAp62FdDIFwa3TMlEOhpSYQzBOu6ZylelXiJ4 Y9sxxylSl0e3QrzTH8tvDv281AQNT7Ck9ghIpGydFhGGk7WqnNVPhxsiyF5W4fvcxciJQzzNXs g1Ib8z506espMcHGPpmsX+Hrk2LGwMy08x1aTbBAyDBuTg==; ARC-Authentication-Results: i=1; zsh.org; iprev=pass (relay4-d.mail.gandi.net) smtp.remote-ip=217.70.183.196; dmarc=none header.from=chazelas.org; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=zsh.org; s=rsa-20210803; t=1708844064; bh=c88xzfE4JW/bUJmP6PWcvzCGnQ1IUn32b5MfpKCMol8=; h=List-Archive:List-Owner:List-Post:List-Unsubscribe:List-Subscribe:List-Help: List-Id:Sender:In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:To:From:Date:DKIM-Signature; b=rXHhe6h6eNthBVM4eqitrt6l3V2UTh0+/kSfZ9b6giGcSeOBXwhpm9ni65YcIa4I9+23Br5CFC OU9BeFDvExGwOgOtvQlZ3+Bmlsigv+yeNhtGKAGJtygMPRtIi+/Qmyu+RVM2MNlKrHsPxJp5Dm yJVNABckcO5LeHhx4tr9qE0lNIjy4Mp2EjwaEbtcsmpDsHihRpHyD1dkOylyRV2AX/W1jJChZ0 PD/Th8PHvtGxk5q/Klw7QDoP3SC7bHtLyIZLOdhP1UCvs4cXhaS7C60lv8StpDwKt5RLGK/Usj CJaBoNWWgWcCpJ0s10LimTlPQTBw4YFvv52o3MICTFVbIw==; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=zsh.org; s=rsa-20210803; h=List-Archive:List-Owner:List-Post:List-Unsubscribe: List-Subscribe:List-Help:List-Id:Sender:In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:To:From:Date:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID; bh=nihNPpKgbpFT4dXW/8eoLlQAvJQ4gk5zwmClp+zSwu0=; b=AfiLm0gN+maT7kmvTgUDNKgO8o iSbeMHaJDkFdg2uYibsZm58r+Fu7/OCRVjtE75PQ8La9HFhGIiiYioEGH8Ysb4eB4T5e0gDiKgHVn S42cfZAIKxL3HSuNq9Xm/0Gs/zKuUlL/8n1HiD/SWIAxlqgX8rWm9LPnAzXnRNFY/0MR+msSq5Z3G 2Ov0DuefW6FzxoLLYBLMNAva4AOZgCkkIQFdry0IO40c1jHpwLnWJnrzH95H6Ofkko46KDbl1/e1C EEoCpGoOprNbDA88h2+S7lru0rn0jqHcTcKOd2+LlM8F6YK9XKAMyHu7vUX+Jxtm2duePUVsMgYXS RtXQB04Q==; Received: by zero.zsh.org with local id 1re8P2-0007Bl-5B; Sun, 25 Feb 2024 06:54:24 +0000 Authentication-Results: zsh.org; iprev=pass (relay4-d.mail.gandi.net) smtp.remote-ip=217.70.183.196; dmarc=none header.from=chazelas.org; arc=none Received: from relay4-d.mail.gandi.net ([217.70.183.196]:39955) by zero.zsh.org with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) id 1re8Oj-0006tC-Eb; Sun, 25 Feb 2024 06:54:06 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id 9B249E0002; Sun, 25 Feb 2024 06:54:01 +0000 (UTC) Date: Sun, 25 Feb 2024 06:54:00 +0000 From: Stephane Chazelas To: Bart Schaefer , Zsh hackers list Subject: Re: Example / partial fix for printf with math expressions Message-ID: <20240225065400.wrb3jxr7vub6t42v@chazelas.org> Mail-Followup-To: Bart Schaefer , Zsh hackers list References: <20240224144041.7huny3lmihsrokdm@chazelas.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240224144041.7huny3lmihsrokdm@chazelas.org> X-GND-Sasl: stephane@chazelas.org X-Seq: 52600 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: 2024-02-24 14:40:41 +0000, Stephane Chazelas: [...] > With the one below using curlen / len[argp-args]: [...] > + zlongval = (curarg) ? mathevali(metafy(curarg, curlen, META_HEAPDUP)) : 0; [...] That incur a performance penalty: $ time zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null 6.07s user 0.46s system 99% cpu 6.544 total $ time ./Src/zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null ./Src/zsh -c 'repeat 1000 printf %d 123_456+{1..10000}' > /dev/null 9.97s user 0.62s system 99% cpu 10.602 total The numbers end up being metafied (earlier), unmetafied by printf, metafied again by printf here and that metafication processed by the math handler I guess. Maybe the performance could be *improved* instead if the unmetafication could be skipped altogether in printf in those cases? -- Stephane