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 > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
