Hi, we do CPU load reporting with Win32::PerfLib - and we assume some problems with cygwins Win32::PerfLib.
1. As Demo script, I used http://www.jkrb.de/jmk/showsource.asp?f=data/scripts/processor.pl 2. We can reproduce this on Windows2008R2 and XP (no other Windows versions available for testing). 3. What is our problem: With cygwin-perl, we always see 100% cpu load on all cores. If running processor.pl, this looks like: ActiveState-Perl: >EigeneProgramme\Perl\bin\perl.exe tmp/processor.pl Instance 4: 2.19% Instance 1: 0.63% Instance 3: 0.63% Instance 2: 3.44% Cygwin: $ perl processor.pl Instance 4: 100.00% Instance 1: 100.00% Instance 3: 100.00% Instance 2: 100.00% (the values on ActiveState-Perl seems reasonable). I looked through the output of Win32::PerfLib::GetObjectList and I see for some counters differences: ActiveState: '8' => { 'DefaultScale' => 0, 'Display' => '%', 'CounterType' => 542180608, 'Counter' => '6478914531250', 'CounterNameTitleIndex' => 1746, 'CounterSize' => 8, 'CounterHelpTitleIndex' => 1747, 'DetailLevel' => 400 }, Cygwin: '8' => { 'DefaultScale' => 0, 'Display' => '%', 'CounterType' => 542180608, 'Counter' => 'I64d', 'CounterNameTitleIndex' => 1746, 'CounterSize' => 8, 'CounterHelpTitleIndex' => 1747, 'DetailLevel' => 400 }, Look at "Counter => I64d" on cygwin. Maybe we have some issue with 64bit values (this is just a guess...) Any ideas about that ? Uli -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
