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102 lines
2.5 KiB
102 lines
2.5 KiB
#! /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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