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annotate light8/updatefreq.py @ 120:b75bfbcf5979
new modules: dmxclient provides a very convenient way for clients to talk to the
new modules: dmxclient provides a very convenient way for clients to talk to the
dmxserver; updatefreq stores event times and computes a report about how frequently
they occur
| author | drewp |
|---|---|
| date | Fri, 13 Jun 2003 14:00:36 +0000 |
| parents | 45b12307c695 |
| children | 57809e0ef359 |
| rev | line source |
|---|---|
| 0 | 1 """calculates your updates-per-second""" |
| 2 | |
| 3 import time | |
| 4 | |
| 5 class Updatefreq: | |
| 6 """make one of these, call update() on it as much as you want, | |
| 7 and then float() or str() the object to learn the updates per second. | |
| 8 | |
| 9 the samples param to __init__ specifies how many past updates will | |
| 10 be stored. """ | |
| 11 | |
|
120
b75bfbcf5979
new modules: dmxclient provides a very convenient way for clients to talk to the
drewp
parents:
0
diff
changeset
|
12 def __init__(self,samples=40): |
| 0 | 13 self.times=[0] |
| 14 self.samples=samples | |
| 15 | |
| 16 def update(self): | |
| 17 | |
| 18 """call this every time you do an update""" | |
| 19 self.times=self.times[-self.samples:] | |
| 20 self.times.append(time.time()) | |
| 21 | |
| 22 def __float__(self): | |
| 23 | |
| 24 """a cheap algorithm, for now, which looks at the first and | |
| 25 last times only""" | |
| 26 | |
|
120
b75bfbcf5979
new modules: dmxclient provides a very convenient way for clients to talk to the
drewp
parents:
0
diff
changeset
|
27 hz=len(self.times)/(self.times[-1]-self.times[0]) |
| 0 | 28 return hz |
| 29 def __str__(self): | |
|
120
b75bfbcf5979
new modules: dmxclient provides a very convenient way for clients to talk to the
drewp
parents:
0
diff
changeset
|
30 return "%.1fHz"%float(self) |