Hello,
I noticed the performance in one of my python scripts has really bad
performance, so I started profiling different sections of the script to find
out where the issue is. It turns out, the exception handle seems to add
the biggest chunk of time. I've fairly new to the Python language, so if
there is a better way to do what I'm doing, then please let me know.
Below is the code that I'm executing, followed by the output I received with
the timings. Notice that when the rate is "X" or a numeric value, the
script execution is much faster than when I enter the exception handler.
I'm running the following version of IronPython: IronPython 2.6.1
(2.6.10920.0) on .NET 4.0.30319.1
[CODE]
from System.Diagnostics import Stopwatch
t = Stopwatch()
s = Stopwatch()
e = Stopwatch()
t.Start()
s.Start()
Rate = PH.GetFieldString("RATE")
s.Stop()
rateGet = s.Elapsed.TotalMilliseconds
s.Reset();
if Rate == "X":
s.Start()
#Sets some values...
s.Stop()
rateSet = s.Elapsed.TotalMilliseconds
else:
try:
e.Start()
fRate = float(Rate)
e.Stop()
if fRate > 15:
s.Start()
#Sets some values...
s.Stop();
rateSet = s.Elapsed.TotalMilliseconds
else:
s.Start()
#Sets some values...
s.Stop();
rateSet = s.Elapsed.TotalMilliseconds
except ValueError:
e.Stop()
s.Start()
#Sets some values...
s.Stop();
rateSet = s.Elapsed.TotalMilliseconds
t.Stop()
print "Total: " + str(t.Elapsed.TotalMilliseconds) + " RateGet: " +
str(rateGet) + " RateSets: " + str(rateSet) + " Exception Handle: " +
str(e.Elapsed.TotalMilliseconds) + " Rate: " + str(Rate)
s.Reset()
t.Reset()
[Output]
Total: 55.402 RateGet: 0.4303 RateSets: 7.5158 Exception Handle: 37.335
Rate: B
Total: 10.026 RateGet: 0.1507 RateSets: 0.38 Exception Handle: 0.1118 Rate:
30
Total: 1.1308 RateGet: 0.1442 RateSets: 0.3553 Exception Handle: 0.0838
Rate: 25
Total: 19.9077 RateGet: 0.145 RateSets: 0.3954 Exception Handle: 18.8591
Rate: A
Total: 18.8859 RateGet: 0.147 RateSets: 1.427 Exception Handle: 16.8182
Rate: A
Total: 18.2704 RateGet: 0.2301 RateSets: 0.6179 Exception Handle: 16.6897
Rate: A
Total: 17.5447 RateGet: 0.1401 RateSets: 0.3707 Exception Handle: 16.5629
Rate: A
Total: 17.43 RateGet: 0.147 RateSets: 0.3796 Exception Handle: 16.4166 Rate:
B
Total: 17.3939 RateGet: 0.1377 RateSets: 0.3602 Exception Handle: 16.4227
Rate: B
Total: 17.3923 RateGet: 0.1418 RateSets: 0.3788 Exception Handle: 16.3627
Rate: B
Total: 1.1993 RateGet: 0.1134 RateSets: 0.6827 Exception Handle: 0.0 Rate: X
Total: 18.6249 RateGet: 0.1057 RateSets: 0.3808 Exception Handle: 17.6504
Rate: A
Total: 17.0674 RateGet: 0.0745 RateSets: 0.3229 Exception Handle: 16.3526
Rate: L
Total: 17.4021 RateGet: 0.0867 RateSets: 0.3521 Exception Handle: 16.6277
Rate: B
Total: 17.4973 RateGet: 0.0741 RateSets: 0.4258 Exception Handle: 16.5078
Rate: A
Total: 17.4251 RateGet: 0.0842 RateSets: 0.3391 Exception Handle: 16.652
Rate: A
Total: 17.3559 RateGet: 0.0757 RateSets: 0.3253 Exception Handle: 16.6212
Rate: A
Total: 17.885 RateGet: 0.0765 RateSets: 0.3277 Exception Handle: 17.1354
Rate: A
Total: 17.898 RateGet: 0.0769 RateSets: 0.4226 Exception Handle: 16.8992
Rate: A
Total: 17.9381 RateGet: 0.0773 RateSets: 0.3257 Exception Handle: 17.2023
Rate: A
Total: 17.6204 RateGet: 0.0786 RateSets: 0.3444 Exception Handle: 16.851
Rate: B
Total: 22.097 RateGet: 0.2589 RateSets: 0.4376 Exception Handle: 20.3052
Rate: B
Total: 16.817 RateGet: 0.0782 RateSets: 0.3249 Exception Handle: 16.0783
Rate: A
Total: 18.1557 RateGet: 0.0798 RateSets: 0.3715 Exception Handle: 17.3765
Rate: A
Total: 17.3117 RateGet: 0.0765 RateSets: 0.4347 Exception Handle: 16.3117
Rate: A
Total: 17.3433 RateGet: 0.0854 RateSets: 0.3415 Exception Handle: 16.5674
Rate: A
Total: 17.8072 RateGet: 0.0741 RateSets: 0.3602 Exception Handle: 17.0503
Rate: A
Total: 21.0285 RateGet: 1.312 RateSets: 1.9955 Exception Handle: 17.2302
Rate: A
Total: 17.4693 RateGet: 0.0733 RateSets: 0.269 Exception Handle: 16.7947
Rate: A
Total: 17.1699 RateGet: 0.0806 RateSets: 0.2666 Exception Handle: 16.4798
Rate: A
Total: 17.2841 RateGet: 0.083 RateSets: 0.2649 Exception Handle: 16.6168
Rate: A
Total: 17.5892 RateGet: 0.0773 RateSets: 0.3731 Exception Handle: 16.7914
Rate: L
Total: 16.9316 RateGet: 0.0761 RateSets: 0.3233 Exception Handle: 16.0309
Rate: L
Total: 17.3713 RateGet: 0.0725 RateSets: 0.254 Exception Handle: 16.7209
Rate: L
Total: 17.1828 RateGet: 0.0794 RateSets: 0.2686 Exception Handle: 16.505
Rate: L
Total: 17.302 RateGet: 0.0786 RateSets: 0.2556 Exception Handle: 16.6391
Rate: A
Total: 17.319 RateGet: 0.0757 RateSets: 0.3314 Exception Handle: 16.413
Rate: A
Total: 17.0678 RateGet: 0.0794 RateSets: 0.269 Exception Handle: 16.3802
Rate: A
Total: 0.8533 RateGet: 0.0749 RateSets: 0.3889 Exception Handle: 0.0522
Rate: 30
Total: 17.6281 RateGet: 0.0725 RateSets: 0.3298 Exception Handle: 16.8968
Rate: A
Total: 17.6294 RateGet: 0.0769 RateSets: 0.2556 Exception Handle: 16.9576
Rate: A
Total: 18.3972 RateGet: 0.0725 RateSets: 0.2698 Exception Handle: 17.708
Rate: L
Total: 17.7363 RateGet: 0.0822 RateSets: 0.3196 Exception Handle: 16.8319
Rate: L
Total: 17.8036 RateGet: 0.0798 RateSets: 0.2807 Exception Handle: 17.1071
Rate: L
Total: 17.3473 RateGet: 0.0761 RateSets: 0.2544 Exception Handle: 16.6857
Rate: L
_______________________________________________
Users mailing list
Users@lists.ironpython.com
http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
