69 lines
1.5 KiB
Python
69 lines
1.5 KiB
Python
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import os, sys, time
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lines = open(sys.argv[1], 'rb').readlines()
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time_limit = -1
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if len(sys.argv) > 2:
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time_limit = long(sys.argv[2])
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keys = ['write', 'read', 'hash', 'move', 'release', 'idle']
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# logfile format:
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# <time(ms)> <state>
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# example:
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# 34523 idle
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# 34722 write
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quantization = 5000
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out = open('disk_io.dat', 'wb')
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state = 'idle'
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time = 0
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i = 0
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state_timer = {}
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for k in keys: state_timer[k] = 0
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for l in lines:
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l = l[:-1].split(' ')
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if len(l) < 2:
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print l
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continue
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try:
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new_time = long(l[0])
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while new_time > i + quantization:
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i += quantization
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state_timer[state] += i - time
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time = i
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for k in keys: print >>out, state_timer[k],
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print >>out
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for k in keys: state_timer[k] = 0
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state_timer[state] += new_time - time
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time = new_time
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state = l[1]
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except:
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print l
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out.close()
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out = open('disk_io.gnuplot', 'wb')
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print >>out, "set term png size 1200,700"
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print >>out, 'set output "disk_io.png"'
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print >>out, 'set xrange [0:*]'
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print >>out, 'set ylabel "time (ms)"'
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print >>out, "set style data lines"
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print >>out, 'set title "disk io utilization per %s second(s)"' % (quantization / 1000)
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print >>out, "set key box"
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print >>out, "set style data histogram"
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print >>out, "set style histogram rowstacked"
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print >>out, "set style fill solid"
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print >>out, 'plot',
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i = 0
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for k in keys:
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if k != 'idle':
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print >>out, ' "disk_io.dat" using %d title "%s",' % (i + 1, keys[i]),
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i = i + 1
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print >>out, 'x=0'
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out.close()
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os.system('gnuplot disk_io.gnuplot');
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