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Re: [Emacs-diffs] master 55ec674: * lisp/multifile.el: New file, extract

From: Dmitry Gutov
Subject: Re: [Emacs-diffs] master 55ec674: * lisp/multifile.el: New file, extracted from etags.el
Date: Thu, 10 Jan 2019 13:20:05 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:65.0) Gecko/20100101 Thunderbird/65.0

On 10.01.2019 02:15, Juri Linkov wrote:

This version is better: 14s instead of previous 17s.

That's good, I guess. But not good enough.

Let's step back. Why is project-files so slow on your machine? In particular, why is it noticeably slower than project-find-regexp?

Does the latest version of project-files in the branch, over 10 invocations, still take 11s?

If so, you might have to investigate more, because I'm stumped. Does it build a meaningfully different command (aside from -exec) than xref-collect-matches? Does it return a different set of files than 'git ls-files'?

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