Hi Tom, Thanks for your suggestion, my Kcachegrind works well now.
But this method (explicitly call through python interpreter) doesn't work for Oprofile, I still can't find the session name "dial_tone" in the profiled data. BTW, if Kcachegrind works well with python application, why do you guys recommend Oprofile? Sincerely, -- Yang, Qing Information Engineering, CUHK 2012/8/28 Tom Rondeau <t...@trondeau.com> > On Tue, Aug 28, 2012 at 4:21 AM, Qing Yang <yangqing0...@gmail.com> wrote: > > Hi everyone, > > > > Where can I find a concrete example on how to profile the gnuradio code > in > > Python? > > > > My PC is Linux 2.6.35-32-generic-pae #67-Ubuntu SMP Mon Mar 5 21:23:19 > UTC > > 2012 i686 GNU/Linux. I use Ubuntu 10.10 and Xeon W3530. > > > > I can use Kcachegrind to profile code written in C++. But when I profile > > python code(e.g., dial_tone.py), there is no profile data output. > > > > address@hidden:~/Public$ valgrind --tool=callgrind ./dial_tone.py > > Qing, > > Try this: > > address@hidden:~/Public$ valgrind --tool=callgrind python ./dial_tone.py > > I've used callgrind with Python before, but you need to explicitly > call it through the interpreter for callgrind to catch on. I _think_ > this works, but it's just from memory. If it doesn't, Google callgrind > and Python; I know the answer is out there. > > Tom > > > > ==30385== Callgrind, a call-graph generating cache profiler > > ==30385== Copyright (C) 2002-2010, and GNU GPL'd, by Josef Weidendorfer > et > > al. > > ==30385== Using Valgrind-3.6.0.SVN-Debian and LibVEX; rerun with -h for > > copyright info > > ==30385== Command: ./dial_tone.py > > ==30385== > > ==30385== For interactive control, run 'callgrind_control -h'. > > address@hidden:~/Public$ ls -l > > total 12 > > -rw------- 1 yangqing yangqing 0 2012-08-27 16:29 callgrind.out.30385 > > ** the size of profile data is 0? ** > > -rwxr-xr-x 1 yangqing yangqing 2006 2012-07-05 16:37 dial_tone.py > > -rwxr-xr-x 1 yangqing yangqing 249 2012-08-27 16:22 mainloop.py > > drwxr-xr-x 25 yangqing yangqing 4096 2012-08-27 00:23 oprofile > > > > Then I try Oprofile, but also failed :( > > > > address@hidden:~/Public$ sudo opcontrol --init > > address@hidden:~/Public$ sudo opcontrol --setup --no-vmlinux > > address@hidden:~/Public$ sudo opcontrol --start > > ATTENTION: Use of opcontrol is discouraged. Please see the man page for > > operf. > > Using default event: CPU_CLK_UNHALTED:100000:0:1:1 > > Using 2.6+ OProfile kernel interface. > > Using log file /var/lib/oprofile/samples/oprofiled.log > > Daemon started. > > Profiler running. > > address@hidden:~/Public$ sudo opcontrol --reset > > Signalling daemon... done > > address@hidden:~/Public$ ./dial_tone.py > > address@hidden:~/Public$ sudo opcontrol --dump > > address@hidden:~/Public$ sudo opcontrol --shutdown > > Stopping profiling. > > Killing daemon. > > address@hidden:~/Public$ opreport -l dial_tone.py > > Using /var/lib/oprofile/samples/ for samples directory. > > error: no sample files found: profile specification too strict ? ** > can't > > find the profile data? ** > > > > and I try > > address@hidden:~/Public$ opreport -l|less > > CPU: Intel Core/i7, speed 2.794e+06 MHz (estimated) > > Counted CPU_CLK_UNHALTED events (Clock cycles when not halted) with a > unit > > mask of 0x00 (No unit mask) count 100000 > > samples % image name app name > symbol > > name > > 97293 44.4076 no-vmlinux no-vmlinux > > /no-vmlinux > > 43324 19.7744 nvidia_drv.so nvidia_drv.so > > /usr/lib/nvidia-173/xorg/nvidia_drv.so > > 23189 10.5842 chromium-browser chromium-browser > > /usr/lib/chromium-browser/chromium-browser > > 8264 3.7719 libpixman-1.so.0.18.4 libpixman-1.so.0.18.4 > > /usr/lib/libpixman-1.so.0.18.4 > > 5975 2.7272 libglib-2.0.so.0.2600.1 libglib-2.0.so.0.2600.1 > > /lib/libglib-2.0.so.0.2600.1 > > 4409 2.0124 libgobject-2.0.so.0.2600.1 libgobject-2.0.so.0.2600.1 > > /usr/lib/libgobject-2.0.so.0.2600.1 > > 3811 1.7395 libcairo.so.2.11000.0 libcairo.so.2.11000.0 > > /usr/lib/libcairo.so.2.11000.0 > > 3001 1.3698 libpangoft2-1.0.so.0.2800.2 libpangoft2-1.0.so.0.2800.2 > > /usr/lib/libpangoft2-1.0.so.0.2800.2 > > 2714 1.2388 python2.6 python2.6 > > /usr/bin/python2.6 > > 2083 0.9507 libdbus-1.so.3.5.2 libdbus-1.so.3.5.2 > > /lib/libdbus-1.so.3.5.2 > > 2003 0.9142 libwfb.so libwfb.so > > /usr/lib/xorg/modules/libwfb.so > > 1969 0.8987 Xorg Xorg > > /usr/bin/Xorg > > 1894 0.8645 libgtk-x11-2.0.so.0.2200.0 libgtk-x11-2.0.so.0.2200.0 > > /usr/lib/libgtk-x11-2.0.so.0.2200.0 > > 1732 0.7905 libgnuradio-core-3.5.2git.so.0.0.0 > > libgnuradio-core-3.5.2git.so.0.0.0 gr_sig_source_f::work(int, > > std::vector<void const*, std::allocat > > or<void const*> >&, std::vector<void*, std::allocator<void*> >&) > > 1578 0.7202 libgdk-x11-2.0.so.0.2200.0 libgdk-x11-2.0.so.0.2200.0 > > /usr/lib/libgdk-x11-2.0.so.0.2200.0 > > 1378 0.6290 libpango-1.0.so.0.2800.2 libpango-1.0.so.0.2800.2 > > /usr/lib/libpango-1.0.so.0.2800.2 > > 962 0.4391 [vdso] (tgid:1237 range:0xb77ec000-0xb77ed000) Xorg > > [vdso] (tgid:1237 range:0xb77ec000-0xb77ed000) > > 802 0.3661 libpthread-2.12.1.so libpthread-2.12.1.so > > pthread_mutex_lock > > 690 0.3149 libc-2.12.1.so libc-2.12.1.so > > __memcpy_ssse3_rep > > 640 0.2921 libpthread-2.12.1.so libpthread-2.12.1.so > > __pthread_mutex_unlock_usercnt > > 459 0.2095 libX11.so.6.3.0 libX11.so.6.3.0 > > /usr/lib/libX11.so.6.3.0 > > 444 0.2027 libQtGui.so.4.7.0 libQtGui.so.4.7.0 > > /usr/lib/libQtGui.so.4.7.0 > > 409 0.1867 libc-2.12.1.so libc-2.12.1.so > > _int_malloc > > 354 0.1616 librt-2.12.1.so librt-2.12.1.so > > clock_gettime > > 341 0.1556 libc-2.12.1.so libc-2.12.1.so > > __memset_sse2_rep > > 337 0.1538 libgnuradio-audio-3.5.2git.so.0.0.0 > > libgnuradio-audio-3.5.2git.so.0.0.0 audio_alsa_sink::work_s32(int, > > std::vector<void const*, std::allocator<void const*> >&, > std::vector<void*, > > std::allocator<void*> >&) > > 332 0.1515 anon (tgid:25090 range:0x4fc0a000-0x4fcff000) > > chromium-browser anon (tgid:25090 range:0x4fc0a000-0x4fcff000) > > 322 0.1470 libc-2.12.1.so libc-2.12.1.so > > __strcmp_sse4_2 > > 237 0.1082 oprofiled oprofiled > > odb_update_node_with_offset > > 230 0.1050 libpangocairo-1.0.so.0.2800.2 > > libpangocairo-1.0.so.0.2800.2 /usr/lib/libpangocairo-1.0.so.0.2800.2 > > 224 0.1022 libpthread-2.12.1.so libpthread-2.12.1.so > > pthread_getspecific > > 223 0.1018 libstdc++.so.6.0.14 libstdc++.so.6.0.14 > > /usr/lib/libstdc++.so.6.0.14 > > 214 0.0977 libxcb.so.1.1.0 libxcb.so.1.1.0 > > /usr/lib/libxcb.so.1.1.0 > > 210 0.0959 metacity metacity > > /usr/bin/metacity > > 204 0.0931 libc-2.12.1.so libc-2.12.1.so > fgetc > > 180 0.0822 ld-2.12.1.so ld-2.12.1.so > > do_lookup_x > > 168 0.0767 libc-2.12.1.so libc-2.12.1.so > > __i686.get_pc_thunk.bx > > 165 0.0753 libc-2.12.1.so libc-2.12.1.so > > _IO_vfscanf > > 163 0.0744 ibus-daemon ibus-daemon > > /usr/bin/ibus-daemon > > ... .... > > > > I can't find my thread of dial_tone.py. I guess I use Oprofile in the > wrong > > way, could you give me some tips? > > > > Sincerely, > > -- > > Yang, Qing > > Information Engineering, CUHK > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > >
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