92 lines
2.0 KiB
Python
Executable File
92 lines
2.0 KiB
Python
Executable File
#! /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(ms)> <key>: <value>
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# example:
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# 16434 read cache: 17
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key_order = ['receive buffer', 'send buffer', 'released send buffer', 'posted send buffer',
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'received send buffer', 'dispatched send buffer', 'queued send buffer',
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'write cache', 'read cache', 'hash temp']
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colors = ['30f030', '001070', '101080', '2040a0',
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'4070d0', '80a0f0', 'f03030',
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'80f080', 'f08080', '4040ff']
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keys = []
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fields = {}
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maximum = {}
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out = open('disk_buffer_log.dat', 'w+')
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field_sum = {}
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field_num_samples = {}
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field_timestamp = {}
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for c in key_order:
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keys.append(c)
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fields[c] = 0
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maximum[c] = 0
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field_sum[c] = 0
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field_num_samples[c] = 0
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field_timestamp[c] = 0
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last_t = 0
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for l in lines:
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try:
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t = int(l[0:l.find(' ')])
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c = l[l.find(' ')+1:l.find(':')]
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n = int(l[l.find(':')+1:-1])
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except:
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print l
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continue
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if last_t != t:
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print >>out, '%d\t' % last_t,
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for i in keys:
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print >>out, '%d\t' % maximum[i],
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print >>out, '\n',
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if not c in keys: continue
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field_sum[c] += fields[c] * float(t - field_timestamp[c])
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field_timestamp[c] = t
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fields[c] = n
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if n > maximum[c]: maximum[c] = n
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if last_t != t:
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last_t = t
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maximum = fields
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for i in keys:
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print '%s: avg: %f' % (i, field_sum[i] / last_t)
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print
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out.close()
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out = open('disk_buffer.gnuplot', 'wb')
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print >>out, "set term png size 1200,700"
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print >>out, 'set output "disk_buffer.png"'
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print >>out, 'set xrange [0:*]'
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print >>out, 'set xlabel "time (ms)"'
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print >>out, 'set ylabel "buffers"'
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print >>out, "set style data lines"
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print >>out, "set key box"
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print >>out, 'plot',
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count = 1 + len(keys)
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keys.reverse()
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for k in keys:
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expr = "$%d" % count
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for i in xrange(2, count): expr += "+$%d" % i
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count -= 1
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print >>out, ' "disk_buffer_log.dat" using 1:(%s) title "%s" with filledcurves x1 lt rgb "#%s",' % (expr, k, colors[count-1]),
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print >>out, 'x=0'
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out.close()
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os.system('gnuplot disk_buffer.gnuplot')
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