文件操作 - dstat_dstat_ctxt.py

文件: /usr/share/dstat/dstat_dstat_ctxt.py

编辑文件内容

### Author: Dag Wieers <dag$wieers,com>

class dstat_plugin(dstat):
    """
    Provide Dstat's number of voluntary and involuntary context switches.

This plugin provides a unique view of the number of voluntary and
    involuntary context switches of the Dstat process itself. It may help
    to vizualise the performance of Dstat and its selection of plugins.
    """
    def __init__(self):
        self.name = 'contxt sw'
        self.vars = ('voluntary', 'involuntary', 'total')
        self.type = 'd'
        self.width = 3
        self.scale = 100

def extract(self):
        res = resource.getrusage(resource.RUSAGE_SELF)

self.set2['voluntary'] = float(res.ru_nvcsw)
        self.set2['involuntary'] = float(res.ru_nivcsw)
        self.set2['total'] = (float(res.ru_nvcsw) + float(res.ru_nivcsw))

for name in self.vars:
            self.val[name] = (self.set2[name] - self.set1[name]) * 1.0 / elapsed

if step == op.delay:
            self.set1.update(self.set2)

# vim:ts=4:sw=4:et

文件操作 - dstat_dstat_ctxt.py

文件: /usr/share/dstat/dstat_dstat_ctxt.py

编辑文件内容

修改文件时间

删除文件