In general, a good benchmark for seeing how useful gprof will be in helping you optimize your application is to run it under the time command.

通常，有一个很好的基准测试可以用来查看gprof对于帮助对应用程序进行优化是多么有用，方法是在time命令下面执行它。

youdao

For the first time in years, she felt in command of her life.

多少年来第一次，她觉得生活掌握在自己的手里。

《牛津词典》

John took command for the only time throughout the whole adventure.

在整个冒险过程中，约翰第一次发号施令。

youdao

Finally,spacecraft commander Armstrong and NASA flight controllers agreed it was time to separate the lander module Eagle from the command module Columbia.

VOA: special.2009.07.15

And French President Nicholas Sarkozy has decided to return France to NATO's military command for the first time in more than forty years.

VOA: special.2009.04.04

However, they were in the chain of command at the time that Newsnight shelved an earlier investigation into abuse claims against former BBC presenter Jimmy Savile.

BBC: The BBC's New Broadcasting House

In fact, I just spoke with the command sergeant major--that's the senior enlisted person in Afghanistan--the first time a woman has been the command sergeant major in a combat theater and that was her point completely is that it's more than a recruiting issue.

NPR: Women in Combat: Rules and Reality

By the time he took command of Bravo Company, he already had four combat tours under his belt.

WSJ: When the Troops Were Very Young