Jean-Marc Lasgouttes wrote:
> We have a --enable-profiling option nowadays. Note that it is not
> enough in itself. You should add
> --disable-assertions --disable-stdlib-debug
> -enable-optimization=-O2
>
> The big problem with gprof is that I never manage to get it to count
> the time spent in the Qt library. That makes its timings pretty
> useless in the case we are interesting in.
I don't think so. LyX feels the same to me running with either
frontend. Anyway, I'm currently building now, having configured, so.
Look OK?
$ ../configure \
--enable-profiling \
--disable-assertions \
--disable-stdlib-debug \
--enable-optimization=-O2 \
--with-frontend='qt' --with-qt-includes='/usr/include/qt3' \
LDFLAGS='-Wl,-t'
I've hisotorically needed the LDFLAGS to overcome a linker bug that
leads to errors:
chset.o(.rodata+0x8): relocation truncated to fit: GPREL32 UND
Dunno if I still need it...
Configuration
Host type: alphaev6-unknown-linux-gnu
Special build flags: compression aiksaurus pch
concept-checks warnings use-aspell use-ispell
C Compiler: gcc
C Compiler LyX flags:
C Compiler flags: -Wextra -Wall
-I/usr/X11R6/include -pg -g -O2
C++ Compiler: g++ (4.0.2)
C++ Compiler LyX flags: -fno-exceptions
C++ Compiler flags: -Wextra -Wall
-I/usr/X11R6/include -pg -g -O2
Linker flags:
Linker user flags: -pg -Wl,-t
Qt Frontend:
Qt version: 3.3.5
Packaging: posix
LyX binary dir: /usr/local/bin
LyX files dir: /usr/local/share/lyx
> It is supposedly possible to use oprofile to get a nice system-wide
> profile, and call-graph can be obtained with a really recent kernel
> (2.6.12?). This would be the best solution, I guess.
I'll try gprof first. The Alpha has a 2.4 kernel which means I'd have
to rebuild it to give me oprofile support, if I understand the
oprofile docs correctly.
--
Angus
