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20 hours ago •
junxnone
junxnone
OpenCV Debug
Debug OpenCV
- 一些预设的环境变量 OpenCV environment variables reference
-
OpenCV Tracing: 默认编译到 OpenCV lib 中-
export OPENCV_TRACE=1
-
- ITT for Vtune
- Vtune 查看 CallStack
Tracing
-
export OPENCV_TRACE=1-
set OPENCV_TRACE=1for Windows
-
- Run your App to generate the
OpenCVTrace.txt - Run
trace_profiler.pyto generate the summary -
export OPENCV_TRACE_DEPTH_OPENCV=0可以不限制跟踪深度
使用
OPENCV_TRACE/OPENCV_TRACE_DEPTH_OPENCV跟踪会增加执行时间，performance 测试时不要使用
| name | type | default | description |
|---|---|---|---|
| ⭐ OPENCV_TRACE | bool | false | enable trace |
| OPENCV_TRACE_LOCATION | string | OpenCVTrace | trace file name ("${name}-$03d.txt") |
| OPENCV_TRACE_DEPTH_OPENCV | num | 1 | 0 不限制跟踪深度，1不跟踪细节，只有 API |
| OPENCV_TRACE_MAX_CHILDREN_OPENCV | num | 1000 | 限制 OpenCV API 调用的跟踪 |
| OPENCV_TRACE_MAX_CHILDREN | num | 1000 | 跟踪子节点，避免大循环 |
| OPENCV_TRACE_SYNC_OPENCL | bool | false | wait for OpenCL kernels to finish |
Example
export OPENCV_TRACE=1
ID name count thr min max median avg *self* IPP % OpenCL %
t-min t-max t-median t-avg total t-IPP % t-OpenCL %
1 cv::imwrite#loadsave.cpp:785 10 1 128.516 444.347 281.262 288.623 2886.230 0.000 0 0.000 0
128.516 444.347 281.262 288.623 2886.230 0.000 0 0.000 0
2 cv::absdiff#arithm.cpp:931 200 1 3.988 30.363 13.851 10.810 2161.989 0.000 0 0.000 0
3.988 30.363 13.851 10.810 2161.989 0.000 0 0.000 0
3 cv::imread#loadsave.cpp:630 4 1 50.158 229.217 123.496 131.592 526.367 0.000 0 0.000 0
50.158 229.217 123.496 131.592 526.367 0.000 0 0.000 0
4 cv::Mat::copyTo#copy.cpp:307 4 1 11.238 33.255 22.259 22.253 89.010 88.708 99 0.000 0
11.238 33.255 22.259 22.253 89.010 88.708 99 0.000 0
5 cv::utils::logging::LogTagManager::assign#logtagmanager.cpp:72 1 1 0.049 0.049 0.049 0.049 0.049 0.000 0 0.000 0
0.049 0.049 0.049 0.049 0.049 0.000 0 0.000 0
6 cv::ocl::setUseOpenCL#ocl.cpp:1234 1 1 0.014 0.014 0.014 0.014 0.014 0.000 0 0.000 0
0.014 0.014 0.014 0.014 0.014 0.000 0 0.000 0
7 cv::utils::logging::LogTagManager::get#logtagmanager.cpp:104 1 1 0.003 0.003 0.003 0.003 0.003 0.000 0 0.000 0
0.003 0.003 0.003 0.003 0.003 0.000 0 0.000 0
export OPENCV_TRACE=1
export OPENCV_TRACE_DEPTH_OPENCV=0
ID name count thr min max median avg *self* IPP % OpenCL %
t-min t-max t-median t-avg total t-IPP % t-OpenCL %
1 cv::imwrite#loadsave.cpp:785 10 1 128.875 445.248 281.637 287.970 2879.696 0.000 0 0.000 0
128.875 445.248 281.637 287.970 2879.696 0.000 0 0.000 0
2 cv::hal::absdiff8u#arithm.simd.hpp:547|cv::absdiff 200 1 3.996 42.662 13.642 10.894 2178.898 0.000 0 0.000 0
3.996 42.662 13.642 10.894 2178.898 0.000 0 0.000 0
3 cv::imread#loadsave.cpp:630 4 1 50.247 230.819 124.025 132.279 529.117 0.000 0 0.000 0
50.247 230.819 124.025 132.279 529.117 0.000 0 0.000 0
4 IPP:ippicviCopy_8u_C1R_L#copy.cpp:364|cv::Mat::copyTo 4 1 10.751 33.440 22.274 22.185 88.740 88.740 100 0.000 0
10.751 33.440 22.274 22.185 88.740 88.740 100 0.000 0
5 cv::absdiff#arithm.cpp:931 200 1 0.003 0.228 0.005 0.007 1.434 0.000 0 0.000 0
4.001 42.764 13.758 10.902 2180.332 0.000 0 0.000 0
6 cv::Mat::copyTo#copy.cpp:307 4 1 0.052 0.124 0.069 0.079 0.315 0.000 0 0.000 0
10.875 33.510 22.335 22.264 89.054 88.740 99 0.000 0
7 cv::utils::logging::LogTagManager::assign#logtagmanager.cpp:72 1 1 0.057 0.057 0.057 0.057 0.057 0.000 0 0.000 0
0.057 0.057 0.057 0.057 0.057 0.000 0 0.000 0
8 cv::ocl::setUseOpenCL#ocl.cpp:1234 1 1 0.013 0.013 0.013 0.013 0.013 0.000 0 0.000 0
0.016 0.016 0.016 0.016 0.016 0.000 0 0.000 0
9 cv::utils::logging::LogTagManager::get#logtagmanager.cpp:104 1 1 0.003 0.003 0.003 0.003 0.003 0.000 0 0.000 0
0.003 0.003 0.003 0.003 0.003 0.000 0 0.000 0
10 cv::ocl::OpenCLExecutionContext::getCurrentRef#ocl.cpp:1086|cv::ocl... 1 1 0.002 0.002 0.002 0.002 0.002 0.000 0 0.000 0
0.002 0.002 0.002 0.002 0.002 0.000 0 0.000 0
ITT
| name | type | default | description |
|---|---|---|---|
| OPENCV_TRACE_ITT_ENABLE | bool | true | |
| OPENCV_TRACE_ITT_PARENT | bool | false | set parentID for ITT task |
| OPENCV_TRACE_ITT_SET_THREAD_NAME | bool | false | set name for OpenCV's threads "OpenCVThread-%03d" |
