Hey, I'm definitely not a win32 freaks but... please can you try to revert the change c3a3ab96641087e21974782a1d99f4cdc9c24efd ?
ciao robe On 08.05.2009, at 14:40, <[email protected]> wrote: > Hello to all Win32 API-freaks! > > File: C:\Qt\2009.02\qt\src\corelib\io\qfsfileengine_win.cpp > Function: QFSFileEnginePrivate::getPermissions(void) > Line 1700: "if(ptrGetEffectiveRightsFromAclW(pDacl, &trustee, > &access_mask) ..." > > That Win32 API-call to GetEffectiveRightsFromAcl()triggers the Windows > Domain Controller calls, and consequently 0.3 second delay per that > call. > > Looking at the call stack we find: > 00 QFSFileEnginePrivate::getPermissions(void)+0x268 > 01 QFSFileEngine::fileFlags(...)+0x9a > 02 QFileInfoPrivate::hasAccess()+0x5e > 03 QFileInfo::isWritable(void)+0x2d > 04 TextEditor::BaseTextDocument::isReadOnly(void)+0x8e > > And this recurs time to time. TextEditor-plugin checks for read > only, and that propagates to file engine, and eventually Win32 > effective rights query. > > -- > jussi > > > -----Original Message----- > From: [email protected] > [mailto:[email protected] > ] On Behalf Of Ettrich Matthias (Nokia-D-Qt/Berlin) > Sent: 08 May, 2009 13:58 > To: [email protected] > Subject: Re: [Qt-creator] Qt Creator response too slow > > > endEditBlock() will emit the cursorPositionChanged()-signals. The > position of > the main cursor is connected to > BaseTextEditor::slotCursorPositionChanged(). > There are also other signals emitted, meaning the problem could lie > anywhere. > > Please continue profiling using a profiler, we still have no way to > reproduce > any of that :-{ > > Matthias > > > On Friday 08 May 2009 12:38:18 pm Ruotsalainen Juha (Nokia-S/Oulu) > wrote: >> For anyone interested: >> I added a QTime::start() and elapsed() lines around >> 'cursor.endEditBlock()' >> in basetexteditor.cpp's line 820 (snapshot downloaded this >> morning). When I >> experience slow responses in Creator (for my test runs) >> endEditBlock() at >> that line takes around 1.8 seconds to complete. >> >> Without testing a bit, I would imagine all the sluggishness is due to >> something lengthy happening in endEditBlock(). Quickly looking at the >> endEditBlock() implementation, it is playing around with >> QSharedDataPointer-stuff. That may cause network accesses somewhere >> in the >> background. >> >> -- >> jussi >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of ext Boy >> Lenssen >> Sent: 07 May, 2009 15:30 >> To: [email protected] >> Subject: Re: [Qt-creator] Qt Creator response too slow >> >> Sounds like you're on the good route! I believe the lasting time >> (about >> 300 ms) is about what I'm experiencing (or maybe a bit more...not >> sure) >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] >> Sent: donderdag 7 mei 2009 13:37 >> To: [email protected] >> Subject: Re: [Qt-creator] Qt Creator response too slow >> >> Valgrind, good as it is, is N/A for Vista. >> >> I did a quick trial runs with Sysinternals' Process Monitor. Test >> setup >> was the same in both cases: same project, same code file, same >> point in >> a method, hit enter at that line. >> >> The main difference between 1.0 and 1.1 is that the latter does >> ends up >> spending 0.3 of a second at the nearest Windows Domain Controller >> (\\xxwdc101\PIPE\samr) doing pipe operations: writing, reading and >> calling >> FileSystemControl (FSCTL_PIPE_TRANSCEIVE). These DC accesses >> occurred 14 >> times in my small log with each occurrence lasting for about 0.2-0.3 >> seconds. >> >> You doin' some funky pipe stuff in QtCreator now ;) >> >> -- >> jussi >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of ext >> Aleksandar D. >> Balalovski >> Sent: 07 May, 2009 14:19 >> To: [email protected] >> Subject: Re: [Qt-creator] Qt Creator response too slow >> >> On Thu, May 7, 2009 at 1:15 PM, <[email protected]> wrote: >>> Is there some option to enable humongous debug/event logs that would >> >> help in pinpointing where time is spent? >> >> >> Maybe with valgrind? > > > _______________________________________________ > Qt-creator mailing list > [email protected] > http://lists.trolltech.com/mailman/listinfo/qt-creator > > _______________________________________________ > Qt-creator mailing list > [email protected] > http://lists.trolltech.com/mailman/listinfo/qt-creator _______________________________________________ Qt-creator mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-creator
