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Re: Get real, user and system time

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On 2020-07-21 13:52, Martin Gregorie wrote:
> On Tue, 21 Jul 2020 01:40:05 +0200, Daniele Futtorovic wrote:
>> 2. System and user time are process-level notions, aren't they?
>>
> Yes.
> 
>> I don't know the C world that well, but could you get them at the
>> method-level if you limited the scope to native code on a 
>> POSIX-compliant system? If not, you can be certain they won't
>> be available in Java.
>>
> No. UNIX/Linux only aggregates elapsed and mill time per process, so
> even for a multi-threaded process you only get process totals. Under UNIX/
> Linux the JVM is a multi-threaded process with a single thread handling 
> user program execution: IIRC it spawns threads to handle garbage 
> collection and Swing/awt but nothing external to the JVM process will see 
> either these or any user-defined threads that your program may execute.

Thanks for the confirmation, Martin.

-- 
DF.

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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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