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tools/trace/parse_ipc_trace.py xnu-12377.121.6 /dev/null
--- xnu/xnu-12377.121.6/tools/trace/parse_ipc_trace.py
+++ /dev/null
@@ -1,908 +0,0 @@
-#!/usr/bin/env python
-# machtrace_parse.py
-# Parse Mach IPC kmsg data trace from XNU
-#
-# Jeremy C. Andrus <jeremy_andrus@apple.com>
-#
-from __future__ import division
-
-import argparse
-import subprocess
-import sys
-import re
-from collections import deque
-
-import os.path
-
-from collections import defaultdict
-
-g_verbose = 0
-g_min_messages = 10
-g_rolling_window = 200
-
-def RunCommand(cmd_string):
-    """
-        returns: (int,str) : exit_code and output_str
-    """
-    global g_verbose
-    if g_verbose > 1:
-        sys.stderr.write("\tCMD:{}\n".format(cmd_string))
-    output_str = ""
-    exit_code = 0
-    try:
-        output_str = subprocess.check_output(cmd_string, shell=True)
-    except subprocess.CalledProcessError, e:
-        exit_code = e.returncode
-    finally:
-        return (exit_code, output_str.strip())
-
-
-class IPCNode:
-    """ Class interface to a graph node representing a logical service name.
-        In general, this should correspond to a unique binary on the system
-        which could be started / stopped as different PIDs throughout the life
-        of the system.
-    """
-    def __init__(self, name = ''):
-        global g_verbose
-        self.nname = "L_" + name.replace(".", "_").replace("-", "_")
-        self.nicename = name
-        self.outgoing = {}
-        self.incoming = {}
-        self.msg_stat = {'o.num':0, 'o.first':0.0, 'o.last':0.0, 'o.window':deque(), 'o.avg':0, 'o.peak':0, \
-                         'i.num':0, 'i.first':0.0, 'i.last':0.0, 'i.window':deque(), 'i.avg':0, 'i.peak':0}
-        self.pidset = {}
-        self.scalefactor = 100.0
-        if g_verbose > 0:
-            sys.stderr.write(' New node: "{}"{}\n'.format(self.nname, ' '*50))
-
-    def add_outgoing_edge(self, edge, time):
-        self.outgoing[edge.ename()] = [edge, time]
-
-    def add_incoming_edge(self, edge, time):
-        self.incoming[edge.ename()] = [edge, time]
-
-    def addpid(self, pid, time):
-        if not pid in self.pidset:
-            self.pidset[pid] = [time, 0]
-        self.pidset[pid][1] = time
-
-    def incoming_msg(self, size, time_us):
-        global g_min_messages
-        global g_rolling_window
-        num = self.msg_stat['i.num'] + 1
-        self.msg_stat['i.num'] = num
-        time_us = float(time_us)
-        if self.msg_stat['i.first'] == 0.0:
-            self.msg_stat['i.first'] = time_us
-            self.msg_stat['i.last'] = time_us
-        else:
-            self.msg_stat['i.last'] = time_us
-            if num > g_min_messages:
-                avg = (num * self.scalefactor) / (time_us - self.msg_stat['i.first'])
-                self.msg_stat['i.avg'] = avg
-
-        self.msg_stat['i.window'].append(time_us)
-        if len(self.msg_stat['i.window']) > g_rolling_window:
-            self.msg_stat['i.window'].popleft()
-            n = len(self.msg_stat['i.window'])
-            ravg = float(len(self.msg_stat['i.window']) * self.scalefactor) / \
-                    (self.msg_stat['i.window'][-1] - self.msg_stat['i.window'][0])
-            if ravg > self.msg_stat['i.peak']:
-                self.msg_stat['i.peak'] = ravg
-
-    def outgoing_msg(self, size, time_us):
-        global g_min_messages
-        global g_rolling_window
-        num = self.msg_stat['o.num'] + 1
-        self.msg_stat['o.num'] = num
-        time_us = float(time_us)
-        if self.msg_stat['o.first'] == 0.0:
-            self.msg_stat['o.first'] = time_us
-            self.msg_stat['o.last'] = time_us
-        else:
-            self.msg_stat['o.last'] = time_us
-            if num > g_min_messages:
-                avg = (num * self.scalefactor) / (time_us - self.msg_stat['o.first'])
-                self.msg_stat['o.avg'] = avg
-
-        self.msg_stat['o.window'].append(time_us)
-        if len(self.msg_stat['o.window']) > g_rolling_window:
-            self.msg_stat['o.window'].popleft()
-            n = len(self.msg_stat['o.window'])
-            ravg = float(len(self.msg_stat['o.window']) * self.scalefactor) / \
-                    (self.msg_stat['o.window'][-1] - self.msg_stat['o.window'][0])
-            if ravg > self.msg_stat['o.peak']:
-                self.msg_stat['o.peak'] = ravg
-
-    def nmsgs(self):
-        return self.msg_stat['o.num'], self.msg_stat['i.num']
-
-    def recycled(self):
-        return len(self.pidset)
-
-    def label(self, timebase = 1000000.0):
-        oavg = float(self.msg_stat['o.avg']) / self.scalefactor
-        opeak = float(self.msg_stat['o.peak']) / self.scalefactor
-        oactive = self.msg_stat['o.last'] - self.msg_stat['o.first']
-        iavg = float(self.msg_stat['i.avg']) / self.scalefactor
-        ipeak = float(self.msg_stat['i.peak']) / self.scalefactor
-        iactive = self.msg_stat['i.last'] - self.msg_stat['i.first']
-        if timebase > 0.0:
-            oavg = oavg * timebase
-            opeak = opeak * timebase
-            oactive = oactive / timebase
-            iavg = iavg * timebase
-            ipeak = ipeak * timebase
-            iactive = iactive / timebase
-        return "{:s}\\no:{:d}/({:d}:{:.1f}s)/{:.1f}:{:.1f})\\ni:{:d}({:d}:{:.1f}s)/{:.1f}:{:.1f})\\nR:{:d}"\
-                .format(self.nicename, \
-                        len(self.outgoing), self.msg_stat['o.num'], oactive, oavg, opeak, \
-                        len(self.incoming), self.msg_stat['i.num'], iactive, iavg, ipeak, \
-                        len(self.pidset))
-
-class IPCEdge:
-    """ Class interface to an graph edge representing two services / programs
-        communicating via Mach IPC. Note that this communication could
-        use many different PIDs. The connected graph nodes (see IPCNode)
-        represent logical services on the system which could be instantiated
-        as many different PIDs depending on the lifecycle of the process
-        (dictated in part by launchd).
-    """
-
-    F_TRACED      = 0x00000100
-    F_COMPLEX     = 0x00000200
-    F_OOLMEM      = 0x00000400
-    F_VCPY        = 0x00000800
-    F_PCPY        = 0x00001000
-    F_SND64       = 0x00002000
-    F_RAISEIMP    = 0x00004000
-    F_APP_SRC     = 0x00008000
-    F_APP_DST     = 0x00010000
-    F_DAEMON_SRC  = 0x00020000
-    F_DAEMON_DST  = 0x00040000
-    F_DST_NDFLTQ  = 0x00080000
-    F_SRC_NDFLTQ  = 0x00100000
-    F_DST_SONCE   = 0x00200000
-    F_SRC_SONCE   = 0x00400000
-    F_CHECKIN     = 0x00800000
-    F_ONEWAY      = 0x01000000
-    F_IOKIT       = 0x02000000
-    F_SNDRCV      = 0x04000000
-    F_DSTQFULL    = 0x08000000
-    F_VOUCHER     = 0x10000000
-    F_TIMER       = 0x20000000
-    F_SEMA        = 0x40000000
-    F_PORTS_MASK  = 0x000000FF
-
-    DTYPES = [ 'std', 'xpc', 'iokit', 'std.reply', 'xpc.reply', 'iokit.reply' ]
-    DFLAVORS = [ 'std', 'ool', 'vcpy', 'iokit' ]
-
-    def __init__(self, src = IPCNode(), dst = IPCNode(), data = '0', flags = '0', time = 0.0):
-        self.src = src
-        self.dst = dst
-        self.flags = 0
-        self.dweight = 0
-        self.pweight = 0
-        self.weight = 0
-        self._data  = { 'std':0, 'ool':0, 'vcpy':0, 'iokit':0 }
-        self._dtype = { 'std':0, 'xpc':0, 'iokit':0, 'std.reply':0, 'xpc.reply':0, 'iokit.reply':0 }
-        self._msgs  = { 'std':0, 'ool':0, 'vcpy':0, 'iokit':0 }
-        self._mtype = { 'std':0, 'xpc':0, 'iokit':0, 'std.reply':0, 'xpc.reply':0, 'iokit.reply':0 }
-        self.ports = 0
-        self.task64 = False
-        self.task32 = False
-        self.src.add_outgoing_edge(self, time)
-        self.dst.add_incoming_edge(self, time)
-        self.addmsg(data, flags, time)
-
-    def ename(self):
-        return self.src.nname + " -> " + self.dst.nname
-
-    def msgdata(self):
-        return self._data, self._dtype
-
-    def data(self, flavor = None):
-        if not flavor:
-            return sum(self._data.itervalues())
-        elif flavor in self._data:
-            return self._data[flavor]
-        else:
-            return 0
-
-    def dtype(self, type):
-        if not type:
-            return sum(self._dtype.itervalues())
-        elif type in self._dtype:
-            return self._dtype[type]
-        else:
-            return 0
-
-    def msgs(self, flavor = None):
-        if not flavor:
-            return sum(self._msgs.itervalues())
-        elif flavor in self._msgs:
-            return self._msgs[flavor]
-        else:
-            return 0
-
-    def mtype(self, type):
-        if not type:
-            return sum(self._mtype.itervalues())
-        elif type in self._mtype:
-            return self._mtype[type]
-        else:
-            return 0
-
-    def selfedge(self):
-        if self.src.nname == self.dst.nname:
-            return True
-        return False
-
-    def addmsg(self, data_hex_str, flags_str, time):
-        global g_verbose
-        f = int(flags_str, 16)
-        self.flags |= f
-        df = {f:0 for f in self.DFLAVORS}
-        dt = {t:0 for t in self.DTYPES}
-        if not f & self.F_TRACED:
-            return df, dt
-        self.weight += 1
-        if f & self.F_SND64:
-            self.task64 = True
-        else:
-            self.task32 = True
-        if not f & self.F_COMPLEX:
-            self.dweight += 1
-            df['std'] = int(data_hex_str, 16)
-            if f & self.F_IOKIT:
-                df['iokit'] = df['std']
-                df['std'] = 0
-                self._data['iokit'] += df['iokit']
-                self._msgs['iokit'] += 1
-            else:
-                self._data['std'] += df['std']
-                self._msgs['std'] += 1
-        elif f & self.F_OOLMEM:
-            self.dweight += 1
-            df['ool'] = int(data_hex_str, 16)
-            if f & self.F_IOKIT:
-                df['iokit'] = df['ool']
-                df['ool'] = 0
-                self._data['iokit'] += df['iokit']
-                self._msgs['iokit'] += 1
-            elif f & self.F_VCPY:
-                df['vcpy'] = df['ool']
-                df['ool'] = 0
-                self._data['vcpy'] += df['vcpy']
-                self._msgs['vcpy'] += 1
-            else:
-                self._data['ool'] += df['ool']
-                self._msgs['ool'] += 1
-        # Complex messages can contain ports and data
-        if f & self.F_COMPLEX:
-            nports = f & self.F_PORTS_MASK
-            if nports > 0:
-                self.pweight += 1
-                self.ports += nports
-        dsize = sum(df.values())
-        if f & self.F_DST_SONCE:
-            if f & self.F_IOKIT:
-                dt['iokit.reply'] = dsize
-                self._dtype['iokit.reply'] += dsize
-                self._mtype['iokit.reply'] += 1
-            elif f & (self.F_DST_NDFLTQ | self.F_SRC_NDFLTQ):
-                dt['xpc.reply'] = dsize
-                self._dtype['xpc.reply'] += dsize
-                self._mtype['xpc.reply'] += 1
-            else:
-                dt['std.reply'] = dsize
-                self._dtype['std.reply'] += dsize
-                self._mtype['std.reply'] += 1
-        elif f & self.F_IOKIT:
-            dt['iokit'] = dsize
-            self._dtype['iokit'] += dsize
-            self._mtype['iokit'] += 1
-        elif f & (self.F_DST_NDFLTQ | self.F_SRC_NDFLTQ):
-            dt['xpc'] = dsize
-            self._dtype['xpc'] += dsize
-            self._mtype['xpc'] += 1
-        else:
-            dt['std'] = dsize
-            self._dtype['std'] += dsize
-            self._mtype['std'] += 1
-        self.src.outgoing_msg(dsize, time)
-        self.dst.incoming_msg(dsize, time)
-        if g_verbose > 2:
-            sys.stderr.write(' {}->{} ({}/{}){}\r'.format(self.src.nname, self.dst.nname, df['ool'], df['std'], ' ' *50))
-        return df, dt
-
-    def avgmsg(self):
-        avgsz = self.data() / self.dweight
-        msgs_with_data = self.dweight / self.weight
-        avgports = self.ports / self.pweight
-        msgs_with_ports = self.pweight / self.weight
-        return (avgsz, msgs_with_data, avgports, msgs_with_ports)
-
-
-class EdgeError(Exception):
-    """ IPCEdge exception class
-    """
-    def __init__(self, edge, nm):
-        self.msg = "Edge {} (w:{}) didn't match incoming name {}!".format(edge.ename(), edge.weight, nm)
-
-class IPCGraph:
-    """ Class interface to a directed graph of IPC interconnectivity
-    """
-    def __init__(self, name = '', timebase = 0.0):
-        global g_verbose
-        if len(name) == 0:
-            self.name = 'ipcgraph'
-        else:
-            self.name = name
-        if g_verbose > 0:
-            sys.stderr.write('Creating new IPCGraph named {}...\n'.format(self.name))
-        self.nodes = {}
-        self.edges = {}
-        self.msgs = defaultdict(lambda: {f:0 for f in IPCEdge.DFLAVORS})
-        self.msgtypes = defaultdict(lambda: {t:0 for t in IPCEdge.DTYPES})
-        self.nmsgs = 0
-        self.totals = {}
-        self.maxdweight = 0
-        for f in IPCEdge.DFLAVORS:
-            self.totals['n'+f] = 0
-            self.totals['D'+f] = 0
-        if timebase and timebase > 0.0:
-            self.timebase = timebase
-        else:
-            self.timebase = 0.0
-
-    def __iter__(self):
-        return edges
-
-    def edgename(self, src, dst):
-        if src and dst:
-            return src.nname + ' -> ' + dst.nname
-        return ''
-
-    def addmsg(self, src_str, src_pid, dst_str, dst_pid, data_hex_str, flags_str, time):
-        src = None
-        dst = None
-        for k, v in self.nodes.iteritems():
-            if not src and k == src_str:
-                src = v
-            if not dst and k == dst_str:
-                dst = v 
-            if src and dst:
-                break
-        if not src:
-            src = IPCNode(src_str)
-            self.nodes[src_str] = src;
-        if not dst:
-            dst = IPCNode(dst_str)
-            self.nodes[dst_str] = dst
-        src.addpid(src_pid, time)
-        dst.addpid(dst_pid, time)
-
-        nm = self.edgename(src, dst)
-        msgdata = {}
-        msgDtype = {}
-        e = self.edges.get(nm)
-        if e != None:
-            if e.ename() != nm:
-                raise EdgeError(e,nm)
-            msgdata, msgDtype = e.addmsg(data_hex_str, flags_str, time)
-        else:
-            e = IPCEdge(src, dst, data_hex_str, flags_str, time)
-            msgdata, msgDtype = e.msgdata()
-            self.edges[nm] = e
-
-        if self.maxdweight < e.dweight:
-            self.maxdweight = e.dweight
-
-        if sum(msgdata.values()) == 0:
-            self.msgs[0]['std'] += 1
-            self.msgtypes[0]['std'] += 1
-            if not 'enames' in self.msgs[0]:
-                self.msgs[0]['enames'] = [ nm ]
-            elif not nm in self.msgs[0]['enames']:
-                self.msgs[0]['enames'].append(nm)
-        else:
-            for k,d in msgdata.iteritems():
-                if d > 0:
-                    self.msgs[d][k] += 1
-                    self.totals['n'+k] += 1
-                    self.totals['D'+k] += d
-                    if not 'enames' in self.msgs[d]:
-                        self.msgs[d]['enames'] = [ nm ]
-                    elif not nm in self.msgs[d]['enames']:
-                        self.msgs[d]['enames'].append(nm)
-            for k,d in msgDtype.iteritems():
-                if d > 0:
-                    self.msgtypes[d][k] += 1
-        self.nmsgs += 1
-        if self.nmsgs % 1024 == 0:
-            sys.stderr.write(" {:d}...\r".format(self.nmsgs));
-
-    def print_dot_node(self, ofile, node):
-        omsgs, imsgs = node.nmsgs()
-        recycled = node.recycled() * 5
-        tcolor = 'black'
-        if recycled >= 50:
-            tcolor = 'white'
-        if recycled == 5:
-            bgcolor = 'white'
-        elif recycled <= 100:
-            bgcolor = 'grey{:d}'.format(100 - recycled)
-        else:
-            bgcolor = 'red'
-        ofile.write("\t{:s} [style=filled,fontcolor={:s},fillcolor={:s},label=\"{:s}\"];\n"\
-                .format(node.nname, tcolor, bgcolor, node.label()))
-
-    def print_dot_edge(self, nm, edge, ofile):
-        #weight = 100 * edge.dweight / self.maxdweight
-        ##if weight < 1:
-        #    weight = 1
-        weight = edge.dweight
-        penwidth = edge.weight / 512
-        if penwidth < 0.5:
-            penwidth = 0.5
-        if penwidth > 7.99:
-            penwidth = 8
-        attrs = "weight={},penwidth={}".format(round(weight,2), round(penwidth,2))
-
-        if edge.flags & edge.F_RAISEIMP:
-            attrs += ",arrowhead=dot"
-
-        xpc = edge.dtype('xpc') + edge.dtype('xpc.reply')
-        iokit = edge.dtype('iokit') + edge.dtype('iokit.reply')
-        std = edge.dtype('std') + edge.dtype('std.reply')
-        if xpc > (iokit + std):
-            attrs += ',color=blue'
-        elif iokit > (std + xpc):
-            attrs += ',color=red'
-
-        if edge.data('vcpy') > (edge.data('ool') + edge.data('std')):
-            attrs += ',style="dotted"'
-        """ # block comment
-         ltype = []
-         if edge.flags & (edge.F_DST_NDFLTQ | edge.F_SRC_NDFLTQ):
-             ltype.append('dotted')
-         if edge.flags & edge.F_APP_SRC:
-             ltype.append('bold')
-         if len(ltype) > 0:
-             attrs += ',style="' + reduce(lambda a, v: a + ',' + v, ltype) + '"'
-
-         if edge.data('ool') > (edge.data('std') + edge.data('vcpy')):
-             attrs += ",color=blue"
-         if edge.data('vcpy') > (edge.data('ool') + edge.data('std')):
-             attrs += ",color=green"
-        """
-
-        ofile.write("\t{:s} [{:s}];\n".format(nm, attrs))
-
-    def print_follow_graph(self, ofile, follow, visited = None):
-        ofile.write("digraph {:s} {{\n".format(self.name))
-        ofile.write("\tsplines=ortho;\n")
-        if not visited:
-            visited = []
-        for f in follow:
-            sys.stderr.write("following {}\n".format(f))
-        lvl = 0
-        printedges = {}
-        while len(follow) > 0:
-            cnodes = []
-            for nm, e in self.edges.iteritems():
-                nicename = e.src.nicename
-                # Find all nodes to which 'follow' nodes communicate
-                if e.src.nicename in follow:
-                    printedges[nm] = e
-                    if not e.selfedge() and not e.dst in cnodes:
-                        cnodes.append(e.dst)
-            visited.extend(follow)
-            follow = []
-            for n in cnodes:
-                if not n.nicename in visited:
-                    follow.append(n.nicename)
-            lvl += 1
-            for f in follow:
-                sys.stderr.write("{}following {}\n".format('  |--'*lvl, f))
-        # END: while len(follow)
-        for k, v in self.nodes.iteritems():
-            if v.nicename in visited:
-                self.print_dot_node(ofile, v)
-        for nm, edge in printedges.iteritems():
-            self.print_dot_edge(nm, edge, ofile)
-        ofile.write("}\n\n")
-
-    def print_graph(self, ofile, follow):
-        ofile.write("digraph {:s} {{\n".format(self.name))
-        ofile.write("\tsplines=ortho;\n")
-        for k, v in self.nodes.iteritems():
-            self.print_dot_node(ofile, v)
-        for nm, edge in self.edges.iteritems():
-            self.print_dot_edge(nm, edge, ofile)
-        ofile.write("}\n\n")
-
-    def print_nodegrid(self, ofile, type='msg', dfilter=None):
-        showdata = False
-        dfname = dfilter
-        if not dfname:
-            dfname = 'all'
-        if type == 'data':
-            showdata = True
-            ofile.write("{} Data sent between nodes.\nRow == SOURCE; Column == DESTINATION\n".format(dfname))
-        else:
-            ofile.write("{} Messages sent between nodes.\nRow == SOURCE; Column == DESTINATION\n".format(dfname))
-
-        if not dfilter:
-            dfilter = IPCEdge.DTYPES
-        ofile.write(' ,' + ','.join(self.nodes.keys()) + '\n')
-        for snm, src in self.nodes.iteritems():
-            odata = []
-            for dnm, dst in self.nodes.iteritems():
-                enm = self.edgename(src, dst)
-                e = self.edges.get(enm)
-                if e and enm in src.outgoing.keys():
-                    if showdata:
-                        dsize = reduce(lambda accum, t: accum + e.dtype(t), dfilter, 0)
-                        odata.append('{:d}'.format(dsize))
-                    else:
-                        nmsg = reduce(lambda accum, t: accum + e.mtype(t), dfilter, 0)
-                        odata.append('{:d}'.format(nmsg))
-                else:
-                    odata.append('0')
-            ofile.write(snm + ',' + ','.join(odata) + '\n')
-
-    def print_datasummary(self, ofile):
-        m = {}
-        for type in IPCEdge.DTYPES:
-            m[type] = [0, 0]
-        for k, v in self.edges.iteritems():
-            for t in IPCEdge.DTYPES:
-                m[t][0] += v.mtype(t)
-                m[t][1] += v.dtype(t)
-        tdata = 0
-        tmsgs = 0
-        for f in IPCEdge.DFLAVORS:
-            tdata += self.totals['D'+f]
-            tmsgs += self.totals['n'+f]
-        # we account for 0-sized messages differently
-        tmsgs += self.msgs[0]['std']
-        ofile.write("Nodes:{:d}\nEdges:{:d}\n".format(len(self.nodes),len(self.edges)))
-        ofile.write("Total Messages,{}\nTotal Data,{}\n".format(tmsgs, tdata))
-        ofile.write("Flavor,Messages,Data,\n")
-        for f in IPCEdge.DFLAVORS:
-            ofile.write("{:s},{:d},{:d}\n".format(f, self.totals['n'+f], self.totals['D'+f]))
-        ofile.write("Style,Messages,Data,\n")
-        for t in IPCEdge.DTYPES:
-            ofile.write("{:s},{:d},{:d}\n".format(t, m[t][0], m[t][1]))
-
-    def print_freqdata(self, ofile, gnuplot = False):
-        flavoridx = {}
-        ostr = "Message Size"
-        idx = 1
-        for f in IPCEdge.DFLAVORS:
-            ostr += ',{fmt:s} Freq,{fmt:s} CDF,{fmt:s} Data CDF,{fmt:s} Cumulative Data'.format(fmt=f)
-            idx += 1
-            flavoridx[f] = idx
-            idx += 3
-        ostr += ',#Unique SVC pairs\n'
-        ofile.write(ostr)
-
-        lastmsg = 0
-        maxmsgs = {}
-        totalmsgs = {}
-        Tdata = {}
-        for f in IPCEdge.DFLAVORS:
-            maxmsgs[f] = 0
-            totalmsgs[f] = 0
-            Tdata[f] = 0
-
-        for k, v in sorted(self.msgs.iteritems()):
-            lastmsg = k
-            _nmsgs = {}
-            for f in IPCEdge.DFLAVORS:
-                _nmsgs[f] = v[f]
-                if v[f] > maxmsgs[f]:
-                    maxmsgs[f] = v[f]
-                if k > 0:
-                    Tdata[f] += v[f] * k
-                    totalmsgs[f] += v[f]
-
-            cdf = {f:0 for f in IPCEdge.DFLAVORS}
-            dcdf = {f:0 for f in IPCEdge.DFLAVORS}
-            if k > 0: # Only use messages with data size > 0
-                for f in IPCEdge.DFLAVORS:
-                    if self.totals['n'+f] > 0:
-                        cdf[f] = int(100 * totalmsgs[f] / self.totals['n'+f])
-                    if self.totals['D'+f] > 0:
-                        dcdf[f] = int(100 * Tdata[f] / self.totals['D'+f])
-
-            ostr = "{:d}".format(k)
-            for f in IPCEdge.DFLAVORS:
-                ostr += ",{:d},{:d},{:d},{:d}".format(_nmsgs[f],cdf[f],dcdf[f],Tdata[f])
-            ostr += ",{:d}\n".format(len(v['enames']))
-            ofile.write(ostr)
-
-        if not gnuplot:
-            return
-
-        colors = [ 'blue', 'red', 'green', 'black', 'grey', 'yellow' ]
-        idx = 0
-        flavorcolor = {}
-        maxdata = 0
-        maxmsg = max(maxmsgs.values())
-        for f in IPCEdge.DFLAVORS:
-            flavorcolor[f] = colors[idx]
-            if self.totals['D'+f] > maxdata:
-                maxdata = self.totals['D'+f]
-            idx += 1
-
-        sys.stderr.write("Creating GNUPlot...\n")
-
-        cdf_data_fmt = """\
-        set terminal postscript eps enhanced color solid 'Courier' 12
-        set border 3
-        set size 1.5, 1.5
-        set xtics nomirror
-        set ytics nomirror
-        set xrange [1:2048]
-        set yrange [0:100]
-        set ylabel font 'Courier,14' "Total Message CDF\\n(% of total number of messages)"
-        set xlabel font 'Courier,14' "Message Size (bytes)"
-        set datafile separator ","
-        set ytics ( '0' 0, '10' 10, '20' 20, '30' 30, '40' 40, '50' 50, '60' 60, '70' 70, '80' 80, '90' 90, '100' 100)
-        plot """
-        plots = []
-        for f in IPCEdge.DFLAVORS:
-            plots.append("'{{csvfile:s}}' using 1:{:d} title '{:s} Messages' with lines lw 2 lt 1 lc rgb \"{:s}\"".format(flavoridx[f]+1, f, flavorcolor[f]))
-        cdf_data_fmt += ', \\\n'.join(plots)
-
-        dcdf_data_fmt = """\
-        set terminal postscript eps enhanced color solid 'Courier' 12
-        set border 3
-        set size 1.5, 1.5
-        set xtics nomirror
-        set ytics nomirror
-        set xrange [1:32768]
-        set yrange [0:100]
-        set ylabel font 'Courier,14' "Total Data CDF\\n(% of total data transmitted)"
-        set xlabel font 'Courier,14' "Message Size (bytes)"
-        set datafile separator ","
-        set ytics ( '0' 0, '10' 10, '20' 20, '30' 30, '40' 40, '50' 50, '60' 60, '70' 70, '80' 80, '90' 90, '100' 100)
-        plot """
-        plots = []
-        for f in IPCEdge.DFLAVORS:
-            plots.append("'{{csvfile:s}}' using 1:{:d} title '{:s} Message Data' with lines lw 2 lt 1 lc rgb \"{:s}\"".format(flavoridx[f]+2, f, flavorcolor[f]))
-        dcdf_data_fmt += ', \\\n'.join(plots)
-
-        freq_data_fmt = """\
-        set terminal postscript eps enhanced color solid 'Courier' 12
-        set size 1.5, 1.5
-        set xrange [1:32768]
-        set yrange [0:9000]
-        set x2range [1:32768]
-        set y2range [0:{maxdata:d}]
-        set xtics nomirror
-        set ytics nomirror
-        set y2tics
-        set autoscale y2
-        set grid x y2
-        set ylabel font 'Courier,14' "Number of Messages"
-        set y2label font 'Courier,14' "Data Transferred (bytes)"
-        set xlabel font 'Courier,14' "Message Size (bytes)"
-        set datafile separator ","
-        set tics out
-        set boxwidth 1
-        set style fill solid
-        plot """
-        plots = []
-        for f in IPCEdge.DFLAVORS:
-            plots.append("'{{csvfile:s}}' using 1:{:d} axes x1y1 title '{:s} Messages' with boxes lt 1 lc rgb \"{:s}\"".format(flavoridx[f], f, flavorcolor[f]))
-            plots.append("'{{csvfile:s}}' using 1:{:d} axes x2y2 title '{:s} Data' with line lt 1 lw 2 lc rgb \"{:s}\"".format(flavoridx[f]+3, f, flavorcolor[f]))
-        freq_data_fmt += ', \\\n'.join(plots)
-        try:
-            new_file = re.sub(r'(.*)\.\w+$', r'\1_cdf.plot', ofile.name)
-            sys.stderr.write("\t{:s}...\n".format(new_file))
-            plotfile = open(new_file, 'w')
-            plotfile.write(cdf_data_fmt.format(lastmsg=lastmsg, maxdata=maxdata, maxmsg=maxmsg, csvfile=ofile.name))
-            plotfile.flush()
-            plotfile.close()
-
-            new_file = re.sub(r'(.*)\.\w+$', r'\1_dcdf.plot', ofile.name)
-            sys.stderr.write("\t{:s}...\n".format(new_file))
-            plotfile = open(new_file, 'w')
-            plotfile.write(dcdf_data_fmt.format(lastmsg=lastmsg, maxdata=maxdata, maxmsg=maxmsg, csvfile=ofile.name))
-            plotfile.flush()
-            plotfile.close()
-
-            new_file = re.sub(r'(.*)\.\w+$', r'\1_hist.plot', ofile.name)
-            sys.stderr.write("\t{:s}...\n".format(new_file))
-            plotfile = open(new_file, 'w')
-            plotfile.write(freq_data_fmt.format(lastmsg=lastmsg, maxdata=maxdata, maxmsg=maxmsg, csvfile=ofile.name))
-            plotfile.flush()
-            plotfile.close()
-        except:
-            sys.stderr.write("\nFailed to write gnuplot script!\n");
-        return
-
-
-def convert_raw_tracefiles(args):
-    if not args.raw or len(args.raw) < 1:
-        return
-
-    if not args.tracefile:
-        args.tracefile = []
-
-    for rawfile in args.raw:
-        sys.stderr.write("Converting RAW tracefile '{:s}'...\n".format(rawfile.name))
-        if args.tbfreq and len(args.tbfreq) > 0:
-            args.tbfreq = " -F " + args.tbfreq
-        else:
-            args.tbfreq = ""
-        tfile = re.sub(r'(.*)(\.\w+)*$', r'\1.ascii', rawfile.name)
-        cmd = 'trace -R {:s}{:s} -o {:s}'.format(rawfile.name, args.tbfreq, tfile)
-        if args.tracecodes and len(args.tracecodes) > 0:
-            cmd += " -N {}".format(args.tracecodes[0])
-        elif os.path.isfile('bsd/kern/trace.codes'):
-            cmd += " -N bsd/kern/trace.codes"
-        if args.traceargs and len(args.traceargs) > 0:
-            cmd += ' '.join(args.traceargs)
-        (ret, outstr) = RunCommand(cmd)
-        if ret != 0:
-            os.stderr.write("Couldn't convert raw trace file. ret=={:d}\nE: {:s}\n".format(ret, outstr))
-            sys.exit(ret)
-
-        if not os.path.isfile(tfile):
-            sys.stderr.write("Failure to convert raw trace file '{:s}'\ncmd: '{:s}'\n".format(args.raw[0].name, cmd))
-            sys.exit(1)
-        args.tracefile.append(open(tfile, 'r'))
-    # END: for rawfile in args.raw
-
-
-def parse_tracefile_line(line, exclude, include, exflags, incflags, active_proc, graph, base=16):
-    val = line.split()
-    if len(val) < 10:
-        return
-    if val[2] == "proc_exec" or val[2] == "TRACE_DATA_EXEC":
-        pid = int(val[3], base)
-        active_proc[pid] = val[9]
-    if val[2] == "MACH_IPC_kmsg_info":
-        sendpid = int(val[3], base)
-        destpid = int(val[4], base)
-        if sendpid == 0:
-            src = "kernel_task"
-        elif sendpid in active_proc:
-            src = active_proc[sendpid]
-        else:
-            src = "{:d}".format(sendpid)
-        if destpid == 0:
-            dst = "kernel_task"
-        elif destpid in active_proc:
-            dst = active_proc[destpid]
-        else:
-            dst = "{:d}".format(destpid)
-        if exclude and len(exclude) > 0 and (src in exclude or dst in exclude):
-            return
-        if include and len(include) > 0 and (not (src in include or dst in include)):
-            return
-        flags = int(val[6], 16)
-        if exflags or incflags:
-            if exflags and (flags & int(exflags[0], 0)):
-                return
-            if incflags and (flags & int(incflags[0], 0)) != int(incflags[0], 0):
-                return
-        # create a graph edge
-        if (flags & IPCEdge.F_TRACED):
-            graph.addmsg(src, sendpid, dst, destpid, val[5], val[6], float(val[0]))
-    # END: MACH_IPC_kmsg_info
-
-#
-# Main
-#
-def main(argv=sys.argv):
-    """ Main program entry point.
-
-        Trace file output lines look like this:
-        {abstime} {delta} MACH_IPC_kmsg_info {src_pid} {dst_pid} {msg_len} {flags} {threadid} {cpu} {proc_name}
-        e.g.
-        4621921.2  33.8(0.0)  MACH_IPC_kmsg_info  ac  9d  c  230002  b2e  1  MobileMail
-
-        Or like this:
-        {abstime} {delta} proc_exec {pid} 0 0 0 {threadid} {cpu} {proc_name}
-        e.g.
-        4292212.3  511.2  proc_exec c8  0  0  0  b44  0  voiced
-    """
-    global g_verbose
-
-    parser = argparse.ArgumentParser(description='Parse an XNU Mach IPC kmsg ktrace file')
-
-    # output a DOT formatted graph file
-    parser.add_argument('--printgraph', '-g', dest='graph', default=None, type=argparse.FileType('w'), help='Output a DOT connectivity graph from the trace data')
-    parser.add_argument('--graphname', dest='name', default='ipcgraph', help='A name for the DOT graph output')
-    parser.add_argument('--graphfollow', dest='follow', nargs='+', metavar='NAME', help='Graph only the transitive closure of services / processes which communicate with the given service(s)')
-
-    # output a CDF of message data
-    parser.add_argument('--printfreq', '-f', dest='freq', default=None, type=argparse.FileType('w'), help='Output a frequency distribution of message data (in CSV format)')
-    parser.add_argument('--gnuplot', dest='gnuplot', action='store_true', help='Write out a gnuplot file along with the frequency distribution data')
-
-    # output a simple summary of message data
-    parser.add_argument('--printsummary', '-s', dest='summary', default=None, type=argparse.FileType('w'), help='Output a summary of all messages in the trace data')
-
-    # Output a CSV grid of node data/messages
-    parser.add_argument('--printnodegrid', '-n', dest='nodegrid', default=None, type=argparse.FileType('w'), help='Output a CSV grid of all messages/data sent between nodes (defaults to # messages)')
-    parser.add_argument('--ngridtype', dest='ngridtype', default=None, choices=['msgs', 'data'], help='Used with the --printnodegrid argument, this option control whether the grid will be # of messages sent between nodes, or amount of data sent between nodes')
-    parser.add_argument('--ngridfilter', dest='ngridfilter', default=None, nargs='+', choices=IPCEdge.DTYPES, help='Used with the --printnodegrid argument, this option controls the type of messages or data counted')
-
-    parser.add_argument('--raw', '-R', dest='raw', nargs='+', type=argparse.FileType('r'), metavar='tracefile', help='Process a raw tracefile using the "trace" utility on the host. This requires an ssh connection to the device, or a manual specification of the tbfrequency.')
-    parser.add_argument('--tbfreq', '-T', dest='tbfreq', default=None, help='The value of sysctl hw.tbfrequency run on the device')
-    parser.add_argument('--device', '-D', dest='device', nargs=1, metavar='DEV', help='The name of the iOS device reachable via "ssh DEV"')
-    parser.add_argument('--tracecodes', '-N', dest='tracecodes', nargs=1, metavar='TRACE.CODES', help='Path to a custom trace.codes file. By default, the script will look for bsd/kern/trace.codes from the current directory)')
-    parser.add_argument('--traceargs', dest='traceargs', nargs='+', metavar='TRACE_OPT', help='Extra options to the "trace" program run on the host')
-
-    parser.add_argument('--psfile', dest='psfile', nargs='+', type=argparse.FileType('r'), help='Process list file output by ios_trace_ipc.sh')
-
-    parser.add_argument('--exclude', dest='exclude', metavar='NAME', nargs='+', help='List of services to exclude from processing. Any messages sent to or originating from these services will be discarded.')
-    parser.add_argument('--include', dest='include', metavar='NAME', nargs='+', help='List of services to include in processing. Only messages sent to or originating from these services will be processed.')
-    parser.add_argument('--exflags', dest='exflags', metavar='0xFLAGS', nargs=1, help='Messages with any of these flags bits set will be discarded')
-    parser.add_argument('--incflags', dest='incflags', metavar='0xFLAGS', nargs=1, type=int, help='Only messages with all of these flags bits set will be processed')
-
-    parser.add_argument('--verbose', '-v', dest='verbose', action='count', help='be verbose (can be used multiple times)')
-    parser.add_argument('tracefile', nargs='*', type=argparse.FileType('r'), help='Input trace file')
-
-    args = parser.parse_args()
-
-    g_verbose = args.verbose
-
-    if not args.graph and not args.freq and not args.summary and not args.nodegrid:
-        sys.stderr.write("Please select at least one output format: [-gfsn] {file}\n")
-        sys.exit(1)
-
-    convert_raw_tracefiles(args)
-
-    graph = IPCGraph(args.name, args.tbfreq)
-
-    nfiles = len(args.tracefile)
-    idx = 0
-    while idx < nfiles:
-        active_proc = {}
-        # Parse a ps output file (generated by ios_trace_ipc.sh)
-        # This pre-fills the active_proc list
-        if args.psfile and len(args.psfile) > idx:
-            sys.stderr.write("Parsing {:s}...\n".format(args.psfile[idx].name))
-            for line in args.psfile[idx]:
-                if line.strip() == '':
-                    continue
-                parse_tracefile_line(line.strip(), None, None, None, None, active_proc, graph, 10)
-        # END: for line in psfile
-
-        sys.stderr.write("Parsing {:s}...\n".format(args.tracefile[idx].name))
-        for line in args.tracefile[idx]:
-            if line.strip() == '':
-                continue
-            parse_tracefile_line(line.strip(), args.exclude, args.include, args.exflags, args.incflags, active_proc, graph)
-        # END: for line in tracefile
-        idx += 1
-    # END: foreach tracefile/psfile
-
-    if args.graph:
-        if args.follow and len(args.follow) > 0:
-            sys.stderr.write("Writing follow-graph to {:s}...\n".format(args.graph.name))
-            graph.print_follow_graph(args.graph, args.follow)
-        else:
-            sys.stderr.write("Writing graph output to {:s}...\n".format(args.graph.name))
-            graph.print_graph(args.graph, args.follow)
-    if args.freq:
-        sys.stderr.write("Writing CDF data to {:s}...\n".format(args.freq.name))
-        graph.print_freqdata(args.freq, args.gnuplot)
-    if args.summary:
-        sys.stderr.write("Writing summary data to {:s}...\n".format(args.summary.name))
-        graph.print_datasummary(args.summary)
-    if args.nodegrid:
-        nm = args.ngridtype
-        sys.stderr.write("Writing node grid data to {:s}...]\n".format(args.nodegrid.name))
-        graph.print_nodegrid(args.nodegrid, args.ngridtype, args.ngridfilter)
-
-if __name__ == '__main__':
-    sys.exit(main())