Doing Profiling
Christian Esken
c.esken at cityweb.de
Wed Dec 11 20:04:34 GMT 2002
Hi,
I want to do some profiling on KDE especilly for abalyzing startup time.
I thought using ./configure --enable-debug=full --enable-profile would work out nice.
The stuff is compiled with -g and -pg as seen below.
/bin/sh ../libtool --silent --mode=compile --tag=CXX g++ -DHAVE_CONFIG_H
-I. -I. -I.. -I./../libltdl/ -I../dcop -I../libltdl -I../kdecore -I../kdeui -I../kio -I../kio/kio -I../kio/kfile -I..
-I/opt/CVS/qt-copy//include -I/usr/X11R6/include -I/opt/kdehead/include -DQT_THREAD_SUPPORT
-D_REENTRANT -I/opt/kdehead/include -Wnon-virtual-dtor -Wno-long-long -Wundef -Wall -pedantic
-W -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -ansi -D_XOPEN_SOURCE=500 -D_BSD_SOURCE
-Wcast-align -Wconversion -pg -fno-builtin -g3 -fno-exceptions -fno-check-new
-DQT_NO_TRANSLATION -DQT_CLEAN_NAMESPACE -DQT_NO_ASCII_CAST -DQT_NO_COMPAT
-c -o autostart.lo `test -f 'autostart.cpp' || echo './'`autostart.cpp
The problem is, I only get "number of calls" but no timings.
chris at bjork:~> gprof /opt/kdehead/bin/kdeinit a/gmon.out | head -20
Flat profile:
Each sample counts as 0.01 seconds.
no time accumulated
% cumulative self self total
time seconds seconds calls Ts/call Ts/call name
0.00 0.00 0.00 6941 0.00 0.00 QGArray::size() const
0.00 0.00 0.00 4707 0.00 0.00 QGArray::data() const
0.00 0.00 0.00 4502 0.00 0.00 QShared::deref()
0.00 0.00 0.00 1363 0.00 0.00 QShared::ref()
0.00 0.00 0.00 1246 0.00 0.00 QString::length() const
0.00 0.00 0.00 1216 0.00 0.00 QValueListIterator<QString>::QValueListIterator[in-charge](QValueListNode<QString>*)
0.00 0.00 0.00 1133 0.00 0.00 QChar::QChar[in-charge](QChar const&)
0.00 0.00 0.00 777 0.00 0.00 QGArray::at(unsigned) const
0.00 0.00 0.00 675 0.00 0.00 QString::~QString [in-charge]()
0.00 0.00 0.00 563 0.00 0.00 QValueListNode<QString>::~QValueL
Anybody knows how to get timings?
Christian
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