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### Author: Dag Wieers <dag@wieers.com> ### Example content for /proc/bc/<veid>/ioacct # read 2773011640320 # write 2095707136000 # dirty 4500342390784 # cancel 4080624041984 # missed 0 # syncs_total 2 # fsyncs_total 1730732 # fdatasyncs_total 3266 # range_syncs_total 0 # syncs_active 0 # fsyncs_active 0 # fdatasyncs_active 0 # range_syncs_active 0 # vfs_reads 3717331387 # vfs_read_chars 3559144863185798078 # vfs_writes 901216138 # vfs_write_chars 23864660931174682 # io_pbs 16 class dstat_plugin(dstat): def __init__(self): self.nick = ['read', 'write', 'dirty', 'cancel', 'missed'] self.cols = len(self.nick) def check(self): if not os.path.exists('/proc/vz'): raise Exception, 'System does not have OpenVZ support' elif not os.path.exists('/proc/bc'): raise Exception, 'System does not have (new) OpenVZ beancounter support' elif not glob.glob('/proc/bc/*/ioacct'): raise Exception, 'System does not have any OpenVZ containers' info(1, 'Module %s is still experimental.' % self.filename) def name(self): return ['ve/'+name for name in self.vars] def vars(self): ret = [] if not op.full: varlist = ['total',] else: varlist = [os.path.basename(veid) for veid in glob.glob('/proc/vz/*')] ret = varlist return ret def extract(self): for veid in self.vars: self.set2['total'] = {} for line in dopen('/proc/bc/%s/ioacct' % veid).readlines(): l = line.split() if len(l) != 2: continue if l[0] not in self.nick: continue index = self.nick.index(l[0]) self.set2[veid][index] = long(l[1]) self.set2['total'][index] = self.set2['total'][index] + long(l[1]) # print veid, self.val[veid], self.set2[veid][0], self.set2[veid][1] # print veid, self.val[veid], self.set1[veid][0], self.set1[veid][1] for i in range(len(self.nick)): self.val[veid][i] = (self.set2[veid][i] - self.set1[veid][i]) / elapsed if step == op.delay: self.set1.update(self.set2) # vim:ts=4:sw=4:et