Attachment 860352 Details for Bug 1062467 – Trivial python implementation of uptime(1) using PCP

Trivial python implementation of uptime(1) using PCP

uptime.py (text/x-python), 3.03 KB, created by Nathan Scott on 2014-02-07 00:55:53 UTC

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Creator: Nathan Scott

Created: 2014-02-07 00:55:53 UTC

Size: 3.03 KB

patch

obsolete

>#!/usr/bin/python
>#
># Copyright (C) 2014 Red Hat.
>#
># This program is free software; you can redistribute it and/or modify it
># under the terms of the GNU General Public License as published by the
># Free Software Foundation; either version 2 of the License, or (at your
># option) any later version.
># 
># This program is distributed in the hope that it will be useful, but
># WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
># or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
># for more details.
>#
>
>""" Tell how long the system has been running
>
>uptime.py gives a one line display of the following information:
>    The current time;
>    How long the system has been running;
>    How many users are currently logged on; and
>    The system load averages for the past 1, 5, and 15 minutes.
>"""
>
>from pcp import pmapi
>from cpmapi import PM_TYPE_U32, PM_TYPE_FLOAT
>
>def print_timestamp(stamp):
>    """ Report the sample time (struct tm) in HH:MM:SS form """
>    print " %02d:%02d:%02d" % (stamp.tm_hour, stamp.tm_min, stamp.tm_sec),
>
>def print_uptime(seconds):
>    """ Report on system up-time in days, hours and minutes """
>    days = seconds / (60 * 60 * 24)
>    minutes = seconds / 60
>    hours = minutes / 60
>    hours = hours % 24
>    minutes = minutes % 60
>    print "up",
>    if days > 1:
>        print "%d days," % days,
>    elif days != 0:
>        print "1 day,",
>    if hours != 0:
>        print '%2d:%02d,' % (hours, minutes),
>    else:
>        print '%d min,' % minutes,
>
>def print_users(nusers):
>    """ Report the number of logged in users at sample time """
>    if nusers == 1:
>        print '1 user, ' 
>    else:
>        print '%2d users, ' % nusers,
>
>def print_load(one, five, fifteen):
>    """ Report 1, 5, 15 minute load averages at sample time """
>    print 'load average: %.2f, %.2f, %.2f' % (one, five, fifteen),
>
>def uptime():
>    """ Create a PMAPI context (could be either host or archive),
>        fetch and report a fixed set of values related to uptime.
>    """
>    context = pmapi.pmContext()
>    metrics = ('kernel.all.uptime', 'kernel.all.nusers', 'kernel.all.load')
>    pmids = context.pmLookupName(metrics)
>    descs = context.pmLookupDescs(pmids)
>    result = context.pmFetch(pmids)
>
>    sample_time = result.contents.timestamp.tv_sec
>    time_struct = context.pmLocaltime(sample_time)
>    print_timestamp(time_struct)
>
>    atom = context.pmExtractValue(
>		result.contents.get_valfmt(0),
>		result.contents.get_vlist(0, 0),
>		descs[0].contents.type, PM_TYPE_U32)
>    print_uptime(atom.ul)
>
>    atom = context.pmExtractValue(
>		result.contents.get_valfmt(1),
>		result.contents.get_vlist(1, 0),
>		descs[1].contents.type, PM_TYPE_U32)
>    print_users(atom.ul)
>
>    averages = [1, 5, 15]
>    for instance in xrange(3):
>        averages[instance] = context.pmExtractValue(
>				result.contents.get_valfmt(2),
>				result.contents.get_vlist(2, instance),
>				descs[2].contents.type, PM_TYPE_FLOAT)
>    print_load(averages[0].f, averages[1].f, averages[2].f)
>
>    context.pmFreeResult(result)
>
>if __name__ == '__main__':
>    uptime()

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Attachments on bug 1062467: 860352