so it takes a long time for the load to retire. It takes longer for that load to retire than for the rest of the memset function to speculatively execute and return to the calling function. While there are more samples spent in the memset function in certain cases, that does not actually...
io‘in在Petalinux内核模块中的设备树内存区时，SError内核恐慌EN作为原始内存，而不是原来的位置--使用通道7的特定寄存器驻留在其中的位置(参见https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf中的表13-3 )。您不应该(显然不能不搞砸Petalinux)就把这个区域清除为0。Peta...
Some programs have histograms that are not as sharp, meaning that there are more values that are not aligned to 4 or 8-byte boundary. Memcpy and Memset and frequently called by low-level high-performance libraries. Here is one example of one stack trace from the Firefox codebase: (gdb) ...