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#!/usr/bin/env python
##
## chewie.py
## chews browser http log. draws graph of connections
## Be sure there is only one pageload in the log.
##
## you'll want to
## sudo apt-get install python-matplotlib
## before running this
##
import sys, pylab
# can't just use a dict, because there can be dups
class Queue:
def __init__(self):
self.queue = []
def add(self, url, time):
self.queue.append([url, time])
def get(self, url):
for x in range(len(self.queue)):
rec = self.queue[x]
if rec[0] == url:
del self.queue[x]
return rec[1]
## pull out request lag -- queue to start to done
def lag():
font = {'color': '#909090', 'fontsize': 6}
extractMe = {
'RequestQueue.queueRequest': "Q",
'Connection.openHttpConnection()': "O",
'Request.sendRequest()': "S",
'Request.requestSent()': "T",
'processRequests()': 'R',
'Request.readResponse():': "D", # done
'clearPipe()': 'U', # unqueue
'Request.readResponse()': 'B', # read data block
'Request.readResponseStatus():': 'HR', # read http response line
'hdr': 'H', # http header
}
keys = extractMe.keys()
f = open(sys.argv[1], "r")
t0 = None
# thread, queued, opened, send, sent, reading, read, uri, server, y
# 0 1 2 3 4 5 6 7 8 9
vals = []
queued = Queue()
opened = {"http0": None,
"http1": None,
"http2": None,
"http3": None,
"http4": None,
"http5": None}
active = {"http0": [],
"http1": [],
"http2": [],
"http3": [],
"http4": [],
"http5": []}
connectionCount = 0
byteCount = 0
killed = [[], []]
while (True):
line = f.readline()
if len(line) == 0: break
splitup = line.split()
# http only
if splitup[0] != "V/http": continue
x = splitup[3:]
# filter to named lines
if x[2] not in keys: continue
x[2] = extractMe[x[2]]
# normalize time
if t0 == None: t0 = int(x[0])
x[0] = int(x[0]) - t0
thread, action = x[1], x[2]
if action == "Q":
time, url = x[0], x[3]
queued.add(url, time)
elif action == "O":
# save opened time and server for this thread, so we can stuff it in l8r
time, thread, host = x[0], x[1], x[4]
opened[thread] = [time, host, connectionCount]
connectionCount += 1
elif action == "S":
time, thread, url = x[0], x[1], x[3]
opentime, host, connection = opened[thread]
qtime = queued.get(url)
record = [thread, qtime, opentime, time, None, None, None, url, host, connection]
active[thread].append(record)
elif action == "T":
time, thread = x[0], x[1]
record = active[thread][-1]
record[4] = time
elif action == "R":
print x
if x[3] in ["sleep", "no", "wait"]: continue
time, thread, = x[0], x[1]
record = active[thread][0]
record[5] = time
elif action == 'U':
thread = x[1]
record = active[thread][0]
killed[0].append(record[9])
killed[1].append(x[0])
queued.add(record[7], record[1])
del active[thread][0]
elif action == "D":
time, thread = x[0], x[1]
record = active[thread][0]
record[6] = time
vals.append(record)
del active[thread][0]
print record
# print record[3] / 1000, record[6] / 1000, record[7]
elif action == "B":
byteCount += int(x[3])
elif action == "HR":
byteCount += int(x[2])
f.close()
rng = range(connectionCount)
opened = []
drawn = [False for x in rng]
for val in vals:
y= val[9]
if not drawn[y]:
drawn[y] = True
opened.append(val[2])
pylab.text(0, y - 0.25, "%s %s %s" % (val[9], val[0][4], val[8]), font)
# define limits
# pylab.plot([vals[-1][6]], rng)
print opened, rng
pylab.plot(opened, rng, 'ro')
pylab.plot(killed[1], killed[0], 'rx')
for val in vals:
thread, queued, opened, send, sent, reading, read, uri, server, y = val
# send arrow
arrow = pylab.Arrow(send, y, sent - send, 0)
arrow.set_facecolor("g")
ax = pylab.gca()
ax.add_patch(arrow)
# read arrow
arrow = pylab.Arrow(reading, y, read - reading, 0)
arrow.set_facecolor("r")
ax = pylab.gca()
ax.add_patch(arrow)
caption = \
"\nrequests: %s\n" % len(vals) + \
"byteCount: %s\n" % byteCount + \
"data rate: %s\n" % (1000 * byteCount / vals[-1][6])+ \
"connections: %s\n" % connectionCount
pylab.figtext(0.82, 0.30, caption, bbox=dict(facecolor='lightgrey', alpha=0.5))
# print lines, [[x, x] for x in range(len(vals))]
# pylab.plot(lines, [[x, x] for x in range(len(vals))], 'r-')
pylab.grid()
pylab.show()
if __name__ == '__main__': lag()
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