I already try to use CLOCK_THREAD_CPUTIME_ID but it does'nt work with Solaris 8.
I'm trying to use getrusage with RUSAGE_SELF (RUSAGE_LWP is not available in sys/resource.h, there's just RUSEGE_SELF and RUSAGE_CHILDREN). I hope it's a way to find solution ...
---------- Post updated at 11:37 AM ---------- Previous update was at 11:36 AM ----------
Bad news, I have a strange behaviour with getrusage.
My old function GET_TIME :
How to post a new thread (Regarding Unix related doubts) in Unix Forums.
I registered my id but I am unable to post my Questions to Forum.
Thanks & Regards,
indusri (1 Reply)
Hello
Ive written 2 programs in shell and I need to compare their speed (Compile) against one another.
what methods could I go about doing this?
Is there a feature in shell do accommodate this? (2 Replies)
I am working on an application with some rather interesting build performance issues. If we build on Solaris/Linux x86/AMD64 the build is rather fast, but it takes more than five times as long on our Solaris Sparc servers (single-threaded builds on the workstations, but multi-threaded on the... (5 Replies)
hi there, i'd like to know what exactly zpool's iostat (-v) output measure, especially the writes. Is it only the writes to the ZIL or all writes (including commmits) to the disks? if anyone knows, that'd be helpful roti (1 Reply)
Hi
For our load testing , we are using stubs (unix shell script) which send the response to the request coming from the application. As the unix stub is single threaded , it is responding to only one request whereas multiple requests come in parallely.
I haven't worked on thread concepts... (5 Replies)
Hello guys,
I am doing a performance analysis on one of our psystem. Most of time I am using Nmon analyser to do my trend graph. But I can't find any help with it. We are interesting in the time spend by tasks in Aix run queue.
After looking the Aix documentation, I am pessimist to find any... (3 Replies)
Hi
I have a system running solaris 10, and I intend to use a NetApp as its storage system. The application requires a throughput between the server and the storage 7000 disk IOPS (random IO sustained throughput with response time of 20 mili second and 16k block size).
How to make sure that I... (6 Replies)
Greetings!
I set up a basic threading specimen which does the job:#!/usr/bin/python
import threading
class a(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
def run(self):
print("thread a finished")
class b(threading.Thread):
... (0 Replies)
Discussion started by: LinQ
0 Replies
LEARN ABOUT POSIX
getrusage
GETRUSAGE(3P) POSIX Programmer's Manual GETRUSAGE(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
getrusage -- get information about resource utilization
SYNOPSIS
#include <sys/resource.h>
int getrusage(int who, struct rusage *r_usage);
DESCRIPTION
The getrusage() function shall provide measures of the resources used by the current process or its terminated and waited-for child pro-
cesses. If the value of the who argument is RUSAGE_SELF, information shall be returned about resources used by the current process. If the
value of the who argument is RUSAGE_CHILDREN, information shall be returned about resources used by the terminated and waited-for children
of the current process. If the child is never waited for (for example, if the parent has SA_NOCLDWAIT set or sets SIGCHLD to SIG_IGN), the
resource information for the child process is discarded and not included in the resource information provided by getrusage().
The r_usage argument is a pointer to an object of type struct rusage in which the returned information is stored.
RETURN VALUE
Upon successful completion, getrusage() shall return 0; otherwise, -1 shall be returned and errno set to indicate the error.
ERRORS
The getrusage() function shall fail if:
EINVAL The value of the who argument is not valid.
The following sections are informative.
EXAMPLES
Using getrusage()
The following example returns information about the resources used by the current process.
#include <sys/resource.h>
...
int who = RUSAGE_SELF;
struct rusage usage;
int ret;
ret = getrusage(who, &usage);
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
exit(), sigaction(), time(), times(), wait()
The Base Definitions volume of POSIX.1-2008, <sys_resource.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE /The Open Group 2013 GETRUSAGE(3P)
03-24-2011
