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made log parser generate throughput graph as well

This commit is contained in:
Arvid Norberg 2007-09-17 08:54:12 +00:00
parent b5a2373bff
commit 0d03e5721a
1 changed files with 29 additions and 7 deletions
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36
parse_disk_log.py
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@ -2,11 +2,12 @@ import os, sys, time
lines = open(sys.argv[1], 'rb').readlines()
time_limit = -1
if len(sys.argv) > 2:
time_limit = long(sys.argv[2])
if len(sys.argv) < 2:
print "usage: parse_disk_log.py logfile [seconds]"
sys.exit(1)
keys = ['write', 'read', 'hash', 'move', 'release', 'idle']
throughput_keys = ['write', 'read']
# logfile format:
# <time(ms)> <state>
@ -14,14 +15,20 @@ keys = ['write', 'read', 'hash', 'move', 'release', 'idle']
# 34523 idle
# 34722 write
quantization = 5000
if len(sys.argv) > 2:
quantization = long(sys.argv[2]) * 1000
else:
quantization = 5000
out = open('disk_io.dat', 'wb')
out2 = open('disk_throughput.dat', 'wb')
state = 'idle'
time = 0
i = 0
state_timer = {}
throughput = {}
for k in keys: state_timer[k] = 0
for k in throughput_keys: throughput[k] = 0
for l in lines:
l = l[:-1].split(' ')
if len(l) < 2:
@ -35,21 +42,36 @@ for l in lines:
time = i
for k in keys: print >>out, state_timer[k],
print >>out
for k in throughput_keys: print >>out2, throughput[k] / 1000.,
print >>out2
for k in keys: state_timer[k] = 0
for k in throughput_keys: throughput[k] = 0
state_timer[state] += new_time - time
time = new_time
state = l[1]
if state in throughput_keys:
throughput[state] += long(l[2])
except:
print l
out.close()
out2.close()
out = open('disk_io.gnuplot', 'wb')
print >>out, "set term png size 1200,700"
print >>out, 'set output "disk_throughput.png"'
print >>out, 'set title "disk throughput per %s second(s)"' % (quantization / 1000)
print >>out, 'set ylabel "throughput (kB)"'
print >>out, 'plot',
i = 0
for k in throughput_keys:
print >>out, ' "disk_throughput.dat" using %d title "%s" with lines,' % (i + 1, throughput_keys[i]),
i = i + 1
print >>out, 'x=0'
print >>out, 'set output "disk_io.png"'
print >>out, 'set xrange [0:*]'
print >>out, 'set ylabel "time (ms)"'
print >>out, "set style data lines"
print >>out, 'set xrange [0:*]'
print >>out, 'set title "disk io utilization per %s second(s)"' % (quantization / 1000)
print >>out, "set key box"
print >>out, "set style data histogram"