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How to use swapcached method in autotest

Best Python code snippet using autotest_python

monitor.py

Source:monitor.py

1#!/usr/bin/env python32from time import sleep3from os import system4import os5import logger6_proc_status = '/proc/%d/status' % os.getpid()7_scale = {'kB': 1024.0, 'mB': 1024.0*1024.0,8          'KB': 1024.0, 'MB': 1024.0*1024.0}9def _VmB(VmKey):10    '''Private.11    '''12    global _proc_status, _scale13     # get pseudo file  /proc/<pid>/status14    try:15        t = open(_proc_status)16        v = t.read()17        t.close()18    except:19        return 0.0  # non-Linux?20     # get VmKey line e.g. 'VmRSS:  9999  kB\n ...'21    i = v.index(VmKey)22    v = v[i:].split(None, 3)  # whitespace23    if len(v) < 3:24        return 0.0  # invalid format?25     # convert Vm value to bytes26    return float(v[1]) * _scale[v[2]]27def memory(since=0.0):28    '''Return memory usage in bytes.29    '''30    return _VmB('VmSize:') - since31def resident(since=0.0):32    '''Return resident memory usage in bytes.33    '''34    return _VmB('VmRSS:') - since35def stacksize(since=0.0):36    '''Return stack size in bytes.37    '''38    return _VmB('VmStk:') - since39class Monitor(object):40    def __init__(self, node=None):41        self.node = node42        pid = os.getpid()43        self.tmp_stat = '/tmp/tmp_stat_%s' % pid44        self.tmp_meminfo = '/tmp/tmp_meminfo_%s' % pid45    def probe(self, cpu_reserve, mem_reserve):46        """return number of decoder instances that can run on this node."""47        result = 048        if self.node:49            status = system('ssh %s :' % self.node)50            if status != 0:51                logger.writeln('%s down' % self.node)52            else:53                cpu = self.cpu_usage()54                mem = self.mem_free()55                if logger.level >= 1:56                    logger.writeln('cpu usage: %.1f%%' % cpu)57                    logger.writeln('mem free: %s kB' % mem)58                result = int(min((100-cpu)/cpu_reserve, mem/mem_reserve))59        if logger.level >= 1:60            logger.writeln('%s decoder instances will start on %s' %61                           (result, self.node))62            logger.writeln()63        system('rm -f %s' % self.tmp_stat)64        system('rm -f %s' % self.tmp_meminfo)65        return result66    def get_stat_file(self, node=None):67        if node:68            system('ssh %s cat /proc/stat > %s' % (node, self.tmp_stat))69        else:70            system('cp /proc/stat %s' % self.tmp_stat)71    def get_meminfo_file(self, node=None):72        if node:73            system('ssh %s cat /proc/meminfo > %s' % (node, self.tmp_meminfo))74        else:75            system('cp /proc/meminfo %s' % self.tmp_meminfo)76    def cpu_usage(self, interval=1):77        times1 = self.parse_proc_stat()78        sleep(interval)79        times2 = self.parse_proc_stat()80        idle = times2[3] - times1[3]81        total = sum(t2 - t1 for t2, t1 in zip(times2, times1))82        return float(total - idle)/total*10083    def parse_proc_stat(self):84        self.get_stat_file(self.node)85        f = open(self.tmp_stat)86        l = f.readline()87        f.close()88        l = l.split()89        user_time = int(l[1])90        nice_time = int(l[2])91        sys_time = int(l[3])92        idle_time = int(l[4])93        return user_time, nice_time, sys_time, idle_time94    def mem_free(self):95        self.get_meminfo_file(self.node)96        f = open(self.tmp_meminfo)97        data = {}98        for line in f:99            line = line.split()100            name = line[0][:-1]101            value = int(line[1])102            data[name] = value103        # print('MemTotal: %s' % data['MemTotal'])104        # print('MemFree: %s' % data['MemFree'])105        # print('Buffers: %s' % data['Buffers'])106        # print('Cached: %s' % data['Cached'])107        # print('SwapCached: %s' % data['SwapCached'])108        # print('Active: %s' % data['Active'])109        # print('Inactive: %s' % data['Inactive'])110        # print('Buffers+Cached+SwapCached: %s' % (data['Buffers'] + data['Cached'] + data['SwapCached']))111        # print('Buffers+Cached+SwapCached+MemFree: %s' % (data['Buffers'] + data['Cached'] + data['SwapCached'] + data['MemFree']))112        # print('Active+Inactive: %s' % (data['Active'] + data['Inactive']))113        # print('Inactive+MemFree: %s' % (data['Inactive'] + data['MemFree']))114        free = data['MemFree'] + data['Buffers'] + data['Cached']115        return free116if __name__ == '__main__':117    m = Monitor()118    m.probe(25, 100000)119    for i in range(1, 30):120        node = 'f%s' % str(i).rjust(2, '0')121        print('probe %s' % node)122        m = Monitor(node)...

proc.py

Source:proc.py

1#!/usr/bin/env python2from ROOT import TTree, TFile3from array import array4import sys, re5if len(sys.argv) < 2:6    print 'Usage'7    print '  $ proc.py filename'8    sys.exit(-1)9ifname = sys.argv[1]10if re.search('\.[^\.]*$', ifname):11  ofname = re.sub('\.[^\.]*$', '', ifname)12else:13  ofname = ifname14ofname += '.root'15memTotal     = array('i', [0])16memFree      = array('i', [0])17buffers      = array('i', [0])18cached       = array('i', [0])19swapCached   = array('i', [0])20active       = array('i', [0])21inactive     = array('i', [0])22lowFree      = array('i', [0])23swapFree     = array('i', [0])24dirty        = array('i', [0])25writeback    = array('i', [0])26anonPages    = array('i', [0])27mapped       = array('i', [0])28slab         = array('i', [0])29pageTables   = array('i', [0])30committed_AS = array('i', [0])31vmallocUsed  = array('i', [0])32tr = TTree('tr', 'tr')33tr.Branch('memTotal', memTotal, 'memTotal/I')34tr.Branch('memFree', memFree, 'memFree/I')35tr.Branch('buffers', buffers, 'buffers/I')36tr.Branch('cached', cached, 'cached/I')37tr.Branch('swapCached', swapCached, 'swapCached/I')38tr.Branch('active', active, 'active/I')39tr.Branch('inactive', inactive, 'inactive/I')40tr.Branch('lowFree', lowFree, 'lowFree/I')41tr.Branch('swapFree', swapFree, 'swapFree/I')42tr.Branch('dirty', dirty, 'dirty/I')43tr.Branch('writeback', writeback, 'writeback/I')44tr.Branch('anonPages', anonPages, 'anonPages/I')45tr.Branch('mapped', mapped, 'mapped/I')46tr.Branch('slab', slab, 'slab/I')47tr.Branch('pageTables', pageTables, 'pageTables/I')48tr.Branch('committed_AS', committed_AS, 'committed_AS/I')49tr.Branch('vmallocUsed', vmallocUsed, 'vmallocUsed/I')50size = 051for line in open(ifname, 'r'):52    sp = line.split()53    if len(sp) != 17:54        break55    memTotal[0]     = int(sp[0])56    memFree[0]      = int(sp[1])57    buffers[0]      = int(sp[2])58    cached[0]       = int(sp[3])59    swapCached[0]   = int(sp[4])60    active[0]       = int(sp[5])61    inactive[0]     = int(sp[6])62    lowFree[0]      = int(sp[7])63    swapFree[0]     = int(sp[8])64    dirty[0]        = int(sp[9])65    writeback[0]    = int(sp[10])66    anonPages[0]    = int(sp[11])67    mapped[0]       = int(sp[12])68    slab[0]         = int(sp[13])69    pageTables[0]   = int(sp[14])70    committed_AS[0] = int(sp[15])71    vmallocUsed[0]  = int(sp[16])72    tr.Fill()73f = TFile(ofname, 'RECREATE')74tr.Write()...

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