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
==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
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