<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Performance regression in git compared 2.11" href="https://bugs.freedesktop.org/show_bug.cgi?id=94427#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Performance regression in git compared 2.11" href="https://bugs.freedesktop.org/show_bug.cgi?id=94427">bug 94427</a> from <a class="email" href="mailto:fontconfigbugs@uninformativ.de" title="Peter <fontconfigbugs@uninformativ.de>"> Peter</a> <pre>To be more precise, the commit mentioned above adds a call to FcDirScanOnly() which causes all the stat() calls Antonio has seen. FcDirScanOnly() will *always* be called, even if the cache turns out to be perfectly valid. To give you some more numbers, a "time fc-list" in a terminal went from ~30ms with fontconfig 2.11.1 to ~200ms with fontconfig 2.11.94. As a result, seemingly "simple" applications like dmenu show a noticeable lag on startup. I'm on an i7-3770 with 32GB RAM, so neither CPU speed nor the size of IO cache should be an issue here. I'm not familiar with fontconfig's code, but I noticed that FcCacheDirsValid() gets called 18 times. Is that neccessary? I added some ugly static variables to make fontconfig "cache" the first return value of FcCacheDirsValid() and I'm back at my ~30ms. Thus, *one* call to FcDirScanOnly() is just fine.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>