jiigen666/libtorrent
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

improve disk stats logging to include cache hits

Browse Source
This commit is contained in:
Arvid Norberg
2010-01-31 21:13:52 +00:00
parent e154d56c1f
commit 238f7e38f5
6 changed files with 48 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
parse_disk_access.py
View File

@@ -5,25 +5,28 @@ import os, sys, time
lines = open(sys.argv[1], 'rb').readlines()
# logfile format:
# <time(ms)> <key>: <value>
# <time(us)> <key>: <value>
# example:
# 16434 read cache: 17
keys = ['read', 'write', 'head movement', 'seek per read byte', 'seek per written byte']
colors = ['70e070', 'e07070', '3030f0', '10a010', 'a01010']
style = ['linespoints', 'points pointtype 2', 'lines', 'lines', 'lines']
axis = ['x1y1', 'x1y1', 'x1y2', 'x1y2', 'x1y2']
plot = [True, False, False, False, False]
keys = ['read', 'write', 'head movement', 'seek per read byte', 'seek per written byte',
'read operations per second', 'write operations per second']
colors = ['305030', '503030', '3030f0', '10a010', 'a01010', 'd0d040', 'd040d0']
style = ['dots', 'points', 'lines', 'lines', 'lines', 'lines', 'lines']
axis = ['x1y1', 'x1y1', 'x1y2', 'x1y2', 'x1y2', 'x1y2', 'x1y2']
plot = [True, False, False, False, False, True, False]
out = open('disk_access_log.dat', 'w+')
time = 1000
time = 1000000
last_pos = 0
last_t = 0
cur_movement = 0
cur_read = 0
cur_write = 0
cur_read_ops = 0
cur_write_ops = 0
for l in lines:
try:
@@ -41,8 +44,14 @@ for l in lines:
movement = '-'
amount_read = '-'
amount_write = '-'
if k == 'read': read = '%d' % n
if k == 'write': write = '%d' % n
read_ops = '-'
write_ops = '-'
if k == 'read':
read = '%d' % n
cur_read_ops += 1
if k == 'write':
write = '%d' % n
cur_write_ops += 1
if k == 'read_end': cur_read += n - last_pos
if k == 'write_end': cur_write += n - last_pos
@@ -55,26 +64,30 @@ for l in lines:
amount_read = '%d' % (cur_movement / cur_read)
if cur_write > 0:
amount_write = '%d' % (cur_movement / cur_write)
read_ops = '%d' % cur_read_ops
write_ops = '%d' % cur_write_ops
cur_movement = 0
cur_read = 0
cur_write = 0
last_t = t
cur_read_ops = 0
cur_write_ops = 0
print >>out, '%d\t%s\t%s\t%s\t%s\t%s' % (t, read, write, movement, amount_read, amount_write)
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)
out.close()
out = open('disk_access.gnuplot', 'wb')
print >>out, "set term png size 1200,900"
print >>out, "set term png size 1200,700"
print >>out, 'set output "disk_access.png"'
print >>out, 'set xrange [*:*]'
#print >>out, 'set y2range [0:*]'
print >>out, 'set xlabel "time (ms)"'
print >>out, 'set ylabel "file position"'
print >>out, 'set xlabel "time (us)"'
print >>out, 'set ylabel "drive offset"'
#print >>out, 'set y2label "bytes / %d second(s)"' % (time / 1000)
print >>out, "set key box"
print >>out, "set tics nomirror"
#print >>out, "set y2tics 100"
print >>out, "set y2tics auto"
print >>out, 'plot',
count = 1
for k in keys: