头文件:windows.h 函数原型:BOOLQueryPerformanceCounter(LARGE_INTEGER *lpPerformanceCount); BOOLQueryPerformanceFrequency(LARGE_INTEGER *lpFrequency); 功能:前者获得的是CPU从开机以来执行的时钟周期数。后者用于获得你的机器一秒钟执行多少次,就是你的时钟周期。 补充:LARGE_INTEGER既可以是一个8字节长的整型数,也...
函数原型:time_t time(time_t * timer) 功能: 获取当前的系统时间,返回的结果是一个time_t类型,其实就是一个大整数(long),其值表示从CUT (Coordinated Universal Time)时间1970年1月1日00:00:00(称为UNIX系统的Epoch时间)到当前时刻的秒数。然后调用localtime将time_t所表示的CUT时间转换为本地时间(我们是...
- throughput-performance - virtual-guest - virtual-host Current active profile: balanced [root@localhost ~]# [root@localhost ~]# head /lib/tuned/latency-performance/tuned.conf | grep latency -a1 [cpu] force_latency=1 governor=performance [root@localhost ~]# [root@localhost ~]# tuned-adm pr...
@interfaceNSTimer:NSObject+(NSTimer*)timerWithTimeInterval:(NSTimeInterval)ti invocation:(NSInvocation*)invocation repeats:(BOOL)yesOrNo;//实例化方法, 响应事件用的NSInvocation, 需要手动添加到RunLoop中才会生效+(NSTimer*)scheduledTimerWithTimeInterval:(NSTimeInterval)ti invocation:(NSInvocation*)invocati...
Current active profile:balanced[root@localhost~]#[root@localhost~]# head/lib/tuned/latency-performance/tuned.conf|grep latency-a1[cpu]force_latency=1governor=performance[root@localhost~]#[root@localhost~]# tuned-adm profile latency-performance[root@localhost~]#[root@localhost~]# hexdump/dev/cpu_dm...
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PR の目的処理時間計測用クラス CRunningTimer をより使いやすくします。 オーバーヘッド削減 (主目的) マイクロ秒単位まで計測できるようにする計測結果をそのまま GitHub コメントに表として貼り付けられるようにする (Markdown 表形式での出力) 入力文字列のユニコー
C / C++ Timer interrupts (Visual Studio) c code to open float from text file C program not linking to CRT calls memset() for unknown reasons C/C++ : converting std::string to const char* I get the error : left of '.c_str' must have class/struct/union type is 'char *' C# to ...
This version might insert additional security checks in the stack that might decrease performance. Use the new __declspec(safebuffers) keyword to instruct the compiler to not insert security checks for a particular function. If you compile with both the /GL (Whole Program Optimization) and /clr...
除了对通用主机时间戳函数myCPUTimer()的两次调用外,我们还使用显式同步屏障cudaDeviceSynchronize()来阻止 CPU 的执行,直到设备上以前发出的所有命令都已完成。如果没有这个屏障,这段代码将测量内核发射时间,而不是内核执行时间。 使用CUDA 事件计时 使用主机设备同步点(如cudaDeviceSynchronize()的一个问题是它们会暂...