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comparison light8/updatefreq.py @ 126:57809e0ef359

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more precision on output; fewer default sample count
author drewp
date Sat, 14 Jun 2003 14:47:34 +0000
parents b75bfbcf5979
children
comparison
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125:50001190b317 126:57809e0ef359
7 and then float() or str() the object to learn the updates per second. 7 and then float() or str() the object to learn the updates per second.
8 8
9 the samples param to __init__ specifies how many past updates will 9 the samples param to __init__ specifies how many past updates will
10 be stored. """ 10 be stored. """
11 11
12 def __init__(self,samples=40): 12 def __init__(self,samples=20):
13 self.times=[0] 13 self.times=[0]
14 self.samples=samples 14 self.samples=samples
15 15
16 def update(self): 16 def update(self):
17 17
22 def __float__(self): 22 def __float__(self):
23 23
24 """a cheap algorithm, for now, which looks at the first and 24 """a cheap algorithm, for now, which looks at the first and
25 last times only""" 25 last times only"""
26 26
27 hz=len(self.times)/(self.times[-1]-self.times[0]) 27 try:
28 hz=len(self.times)/(self.times[-1]-self.times[0])
29 except ZeroDivisionError:
30 return 0
28 return hz 31 return hz
29 def __str__(self): 32 def __str__(self):
30 return "%.1fHz"%float(self) 33 return "%.2fHz"%float(self)