linux - ubuntu如何查看C语言程序执行时间和程序的内存使用情况？

Answer 1

Suppose you run the program ./test. After running (or while running), enter ps aux | grep test, and the meaning of the returned information is ps aux | grep test，返回的信息含义为

这其中就有CPU使用、内存使用情况，以及运行时间。
特别的，如果需要在程序运行中实时查看这些信息，输入top | grep test,就会每一秒显示一次，Ctrl + C

Among them are CPU usage, memory usage, and running time.
Specially, if you need to view this information in real time while the program is running, enter top | grep test, it will be displayed once every second, and Ctrl + C will exit. 🎜

Answer 2

time test, add time in front to display the time