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103 lines
2.5 KiB
103 lines
2.5 KiB
11 years ago
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#! /usr/bin/env python
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import os, sys, time
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lines = open(sys.argv[1], 'rb').readlines()
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# logfile format:
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# <time(us)> <key>: <value>
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# example:
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# 16434 read cache: 17
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keys = ['read', 'write', 'head movement', 'seek per read byte', 'seek per written byte',
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'read operations per second', 'write operations per second']
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colors = ['305030', '503030', '3030f0', '10a010', 'a01010', 'd0d040', 'd040d0']
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style = ['dots', 'points', 'lines', 'lines', 'lines', 'lines', 'lines']
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axis = ['x1y1', 'x1y1', 'x1y2', 'x1y2', 'x1y2', 'x1y2', 'x1y2']
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plot = [True, False, False, False, False, True, False]
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out = open('disk_access_log.dat', 'w+')
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time = 1000000
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last_pos = 0
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last_t = 0
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cur_movement = 0
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cur_read = 0
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cur_write = 0
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cur_read_ops = 0
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cur_write_ops = 0
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for l in lines:
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try:
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# strip newline
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l = l[0:-1].split(' ')
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t = int(l[0])
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k = l[1]
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n = int(l[2])
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except:
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print l
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continue
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read = '-'
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write = '-'
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movement = '-'
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amount_read = '-'
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amount_write = '-'
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read_ops = '-'
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write_ops = '-'
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if k == 'read':
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read = '%d' % n
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cur_read_ops += 1
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if k == 'write':
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write = '%d' % n
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cur_write_ops += 1
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if k == 'read_end': cur_read += n - last_pos
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if k == 'write_end': cur_write += n - last_pos
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cur_movement += abs(last_pos - n)
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last_pos = n
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if last_t + time <= t:
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movement = '%d' % cur_movement
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if cur_read > 0:
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amount_read = '%d' % (cur_movement / cur_read)
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if cur_write > 0:
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amount_write = '%d' % (cur_movement / cur_write)
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read_ops = '%d' % cur_read_ops
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write_ops = '%d' % cur_write_ops
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cur_movement = 0
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cur_read = 0
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cur_write = 0
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last_t = t
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cur_read_ops = 0
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cur_write_ops = 0
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print >>out, '%d\t%s\t%s\t%s\t%s\t%s\t%s\t%s' % (t, read, write, movement, amount_read, amount_write, read_ops, write_ops)
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out.close()
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out = open('disk_access.gnuplot', 'wb')
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print >>out, "set term png size 1200,700"
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print >>out, 'set output "disk_access.png"'
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print >>out, 'set xrange [*:*]'
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#print >>out, 'set y2range [0:*]'
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print >>out, 'set xlabel "time (us)"'
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print >>out, 'set ylabel "drive offset"'
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#print >>out, 'set y2label "bytes / %d second(s)"' % (time / 1000)
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print >>out, "set key box"
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print >>out, "set tics nomirror"
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print >>out, "set y2tics auto"
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print >>out, 'plot',
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count = 1
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for k in keys:
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count += 1
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if not plot[count-2]: continue
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print >>out, ' "disk_access_log.dat" using 1:%d title "%s" with %s lt rgb "#%s" axis %s,' \
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% (count, k, style[count-2], colors[count-2], axis[count-2]),
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print >>out, 'x=0'
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out.close()
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os.system('gnuplot disk_access.gnuplot')
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