<table><tr><td style="">rjvbb updated this revision to Diff 21300.<br />rjvbb added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D8059" rel="noreferrer">View Revision</a></tr></table><br /><div><div><p>Updated as requested.</p>

<p>Results on Linux ("stock" dirwatching):</p>

<p>INotify backend</p>

<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">> perf stat -r 3 abstractfilemanagerpluginimportbenchmark gcc-7.2.0
KDirWatch backend: Inotify
Starting import of project gcc-7.2.0
        creating dirwatcher took 1.265 seconds
importing project 0 took 3.162 seconds
Done in 4.428 seconds total
KDirWatch backend: Inotify
Starting import of project gcc-7.2.0
        creating dirwatcher took 1.232 seconds
importing project 0 took 3.098 seconds
Done in 4.331 seconds total
KDirWatch backend: Inotify
Starting import of project gcc-7.2.0
        creating dirwatcher took 1.307 seconds
importing project 0 took 3.14 seconds
Done in 4.448 seconds total

 Performance counter stats for 'abstractfilemanagerpluginimportbenchmark gcc-7.2.0' (3 runs):

       5115.785502      task-clock:u (msec)       #    0.976 CPUs utilized            ( +-  0.84% )
                 0      context-switches:u        #    0.000 K/sec                  
                 0      cpu-migrations:u          #    0.000 K/sec                  
            23,868      page-faults:u             #    0.005 M/sec                    ( +-  0.86% )
     4,749,860,940      cycles:u                  #    0.928 GHz                      ( +-  0.14% )
     3,097,364,964      instructions:u            #    0.65  insn per cycle           ( +-  0.01% )
       741,470,473      branches:u                #  144.938 M/sec                    ( +-  0.02% )
        23,852,653      branch-misses:u           #    3.22% of all branches          ( +-  0.23% )

       5.241247911 seconds time elapsed                                          ( +-  0.76% )</pre></div>

<p>QFileSystemWatcher backend</p>

<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">> env KDIRWATCH_METHOD=QFSWatch time perf stat -r 3 abstractfilemanagerpluginimportbenchmark gcc-7.2.0
KDirWatch backend: QFSWatch
Starting import of project gcc-7.2.0
        creating dirwatcher took 183.192 seconds
importing project 0 took 3.54 seconds
Done in 186.734 seconds total
KDirWatch backend: QFSWatch
Starting import of project gcc-7.2.0
        creating dirwatcher took 176.655 seconds
importing project 0 took 4.017 seconds
Done in 180.672 seconds total
KDirWatch backend: QFSWatch
Starting import of project gcc-7.2.0
        creating dirwatcher took 175.662 seconds
importing project 0 took 3.14 seconds
Done in 178.803 seconds total

 Performance counter stats for 'abstractfilemanagerpluginimportbenchmark gcc-7.2.0' (3 runs):

     175971.327864      task-clock:u (msec)       #    0.959 CPUs utilized            ( +-  1.38% )
                 0      context-switches:u        #    0.000 K/sec                  
                 0      cpu-migrations:u          #    0.000 K/sec                  
            34,114      page-faults:u             #    0.194 K/sec                    ( +-  0.48% )
   310,070,244,556      cycles:u                  #    1.762 GHz                      ( +-  0.20% )
    54,088,827,245      instructions:u            #    0.17  insn per cycle           ( +-  0.00% )
     8,733,088,527      branches:u                #   49.628 M/sec                    ( +-  0.00% )
       206,976,905      branch-misses:u           #    2.37% of all branches          ( +-  0.35% )

     183.439620257 seconds time elapsed                                          ( +-  1.32% )</pre></div></div></div><br /><div><strong>CHANGES SINCE LAST UPDATE</strong><div><a href="https://phabricator.kde.org/D8059?vs=21200&id=21300" rel="noreferrer">https://phabricator.kde.org/D8059?vs=21200&id=21300</a></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D8059" rel="noreferrer">https://phabricator.kde.org/D8059</a></div></div><br /><div><strong>AFFECTED FILES</strong><div><div>kdevplatform/project/abstractfilemanagerplugin.h<br />
kdevplatform/project/tests/CMakeLists.txt<br />
kdevplatform/project/tests/abstractfilemanagerpluginimportbenchmark.cpp</div></div></div><br /><div><strong>To: </strong>rjvbb, KDevelop, mwolff<br /><strong>Cc: </strong>mwolff, kdevelop-devel, geetamc, Pilzschaf, akshaydeo, surgenight, arrowdodger<br /></div>