[Discuss-gnuradio] Profile gr python code using Oprofile and Kcachegrind

address@hidden:~/Public$ valgrind --tool=callgrind ./dial_tone.py

==30385== Callgrind, a call-graph generating cache profiler

==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,

From:	Qing Yang
Subject:	[Discuss-gnuradio] Profile gr python code using Oprofile and Kcachegrind
Date:	Tue, 28 Aug 2012 16:21:26 +0800