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Re: Get real, user and system time

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On Mon, 20 Jul 2020 08:06:31 +0200, Luuk wrote:

> On 18-7-2020 22:59, Martin Gregorie wrote:
>> On Sat, 18 Jul 2020 16:26:35 +0200, Cecil Westerhof wrote:
>> 
>>> In Linux we have the time command to get the real, user and system
>>> time that a command takes.
>>> I know how to get the real time a method takes, but is there a way to
>>> get the user and system time a method takes also?
>>>
>> The only way I can think of, offhand would be the Stopwatch class,
>> which appeared here some time ago. I won't include it as the
>> (reasonably well- commented) copy I have is 118 lines. It has start(),
>> stop() methods, so start/stop should be called to time a process and
>> toString() to display the elapsed time in seconds. Its resolution is to
>> the nearest millisecond.
>> 
>> I've not included it because my copy is 118 lines, tolerably commented.
>> I can e-mail you a copy if it looks useful.
>> 
>> 
>> 
> does it looks like this class:
> https://introcs.cs.princeton.edu/java/stdlib/Stopwatch.java.html

Its a similar idea, but the version I have doesn't have a main() method 
and has start(), stop() and reset() methods, IOW its better adapted to 
what you're trying to do:


Stopwatch sw = new StopWatch();
...
sw.start();
myMethod(arguments);
sw.stop();
System.stderr.println("myMethod: " + sw.toString()
...

The output would be something like:

myMethod: Stopwatch(2020.07.20.09.53.56, 2020.07.20.09.53.59, 3.001 
seconds)
 

-- 
Martin    | martin at
Gregorie  | gregorie dot org

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Thread

Get real, user and system time Cecil Westerhof <Cecil@decebal.nl> - 2020-07-18 16:26 +0200
  Re: Get real, user and system time Martin Gregorie <martin@mydomain.invalid> - 2020-07-18 20:59 +0000
    Re: Get real, user and system time Luuk <luuk@invalid.lan> - 2020-07-20 08:06 +0200
      Re: Get real, user and system time Martin Gregorie <martin@mydomain.invalid> - 2020-07-20 08:55 +0000
  Re: Get real, user and system time Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2020-07-21 01:40 +0200
    Re: Get real, user and system time Martin Gregorie <martin@mydomain.invalid> - 2020-07-21 11:52 +0000
      Threads [Was: Get real, user and system time] Eric Sosman <esosman@comcast-dot-net.invalid> - 2020-07-21 08:42 -0400
        Re: Threads [Was: Get real, user and system time] Martin Gregorie <martin@mydomain.invalid> - 2020-07-21 16:55 +0000
          Re: Threads [Was: Get real, user and system time] Eric Sosman <esosman@comcast-dot-net.invalid> - 2020-07-21 15:46 -0400
            Re: Threads [Was: Get real, user and system time] Martin Gregorie <martin@mydomain.invalid> - 2020-07-21 20:16 +0000
          Re: Threads [Was: Get real, user and system time] Martin Gregorie <martin@mydomain.invalid> - 2020-07-21 23:14 +0000
      Re: Get real, user and system time Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2020-07-22 00:23 +0200

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