<div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><div class="">Hi</div><div class=""><br class=""></div><div class="">I would like to improve the speed of my directory walker.</div><div class=""><br class=""></div><div class="">walk(Dir) -></div><div class="">    {ok, Files} = prim_file:list_dir(Dir),</div><div class="">    walk(Dir, Files).</div><div class=""><br class=""></div><div class="">walk(Dir, [ Basename | Rest ]) -></div><div class="">    Path = filename:join([ Dir, Basename ]),</div><div class="">    case filelib:is_dir(Path) of</div><div class="">        true  -></div><div class="">            walk(Path);</div><div class="">        false -></div><div class="">            io:format("~s~n", [Path]),</div><div class="">            filelib:file_size(Path)</div><div class="">    end,</div><div class="">    walk(Dir, Rest);</div><div class="">walk(_, []) -></div><div class="">    ok.</div></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><br class=""></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><br class=""></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px">Compared to almost anything i found on the web, it’s still very slow:</div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><div class="">> timer:tc(fun() -> dir:walk("/usr/share") end).</div></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px">{<a href="tel:4662361" dir="ltr">4662361</a>,ok}</div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><br class=""></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px">The idea behind it is to build something similar to The Platinum Searcher (in Go, extremely fast):</div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><a href="https://github.com/monochromegane/the_platinum_searcher" class="">https://github.com/monochromegane/the_platinum_searcher</a></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><br class=""></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px">Advices very appreciated on how to improve its speed.</div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px"><br></div><div class="" style="font-family:UICTFontTextStyleBody;font-size:17px">/Frank</div>