我的存儲器使用下一段代碼,一旦得到充分相當快。 Valgrind顯示內存泄漏,但是一旦函數結束,所有內容都被分配到堆棧上(應該是)釋放。OpenCV的墊創作產生內存泄露
void mult_run_time(int rows, int cols)
{
Mat matrix(rows,cols,CV_32SC1);
Mat row_vec(cols,1,CV_32SC1);
/* initialize vector and matrix */
for (int col = 0; col < cols; ++col)
{
for (int row = 0; row < rows; ++row)
{
matrix.at<unsigned long>(row,col) = rand() % ULONG_MAX;
}
row_vec.at<unsigned long>(1,col) = rand() % ULONG_MAX;
}
/* end initialization of vector and matrix*/
matrix*row_vec;
}
int main()
{
for (int row = 0; row < 20; ++row)
{
for (int col = 0; col < 20; ++col)
{
mult_run_time(row,col);
}
}
return 0;
}
Valgrind的顯示,是本着Mat row_vec(cols,1,CV_32CS1)
內存泄漏:
==9201== 24,320 bytes in 380 blocks are definitely lost in loss record 50 of 50
==9201== at 0x4026864: malloc (vg_replace_malloc.c:236)
==9201== by 0x40C0A8B: cv::fastMalloc(unsigned int) (in /usr/local/lib/libopencv_core.so.2.3.1)
==9201== by 0x41914E3: cv::Mat::create(int, int const*, int) (in /usr/local/lib/libopencv_core.so.2.3.1)
==9201== by 0x8048BE4: cv::Mat::create(int, int, int) (mat.hpp:368)
==9201== by 0x8048B2A: cv::Mat::Mat(int, int, int) (mat.hpp:68)
==9201== by 0x80488B0: mult_run_time(int, int) (mat_by_vec_mult.cpp:26)
==9201== by 0x80489F5: main (mat_by_vec_mult.cpp:59)
它是OpenCV中已知的錯誤還是我失去了一些東西?
這可能是無關的,但你肯定'CV_32SC1'是'無符號long'?他們看起來更像'int'我...(我不知道你是否在你沒有真正允許,因爲無符號長是更大的存儲空間寫,在位數,比整數) – Fezvez
Fezvez是正確的,你是實際上是編寫未分配的內存。結果是出乎意料的。 – Sam
將'unsigned long'更改爲'int'和'ULONG_MAX'更改爲'INT_MAX'。內存泄漏仍然存在。 –