Entry
How do I get those nicely formatted values that these programs show which indicate total and current bandwidth?
Mar 1st, 2009 17:00
osososo didididi, unknown unknown, Mike Fletcher
Here's the results of running the module in test mode:
p:\>p:\downloadprofiler.py
2.0 B/s total
2.0 B/s instant
257.2 B/s total
511.3 B/s instant
854.0 B/s total
2.0 KB/s instant
512.4 KB/s total
2.0 MB/s instant
409.8 MB/s total
2.0 GB/s instant
341.4 GB/s total
2.0 TB/s instant
Enjoy all, (this is largely untested, use at your own risk),
Mike
8<________ downloadprofiler.py _______
import time
KILOBYTES = 1024.0
MEGABYTES = KILOBYTES*1024
GIGABYTES = MEGABYTES*1024
TERABYTES = GIGABYTES*1024
SMALLTIME = 0.000000001
class DowloadProfiler:
displayTemplates = [
(TERABYTES, '%0.1f TB/s'), # ah, to have a
terabyte/second
network connection :)
(GIGABYTES, '%0.1f GB/s'),
(MEGABYTES, '%0.1f MB/s'),
(KILOBYTES, '%0.1f KB/s'),
(0, '%0.1f B/s'),
]
def __init__( self ):
self.received = 0L
def start( self ):
self.starttime = time.clock()
self.previoustime = self.starttime
self.instantaneous = 0
def more( self, amount ):
self.received = self.received + amount
self.instantaneous = amount/ ((time.clock() -
self.previoustime) or SMALLTIME)
self.previoustime = time.clock()
def displayTotal( self ):
return self._display( self.received/
((time.clock()-self.starttime) or SMALLTIME) )
def displayInstant( self ):
return self._display( self.instantaneous )
def _display( self, amount ):
for threshold, template in self.displayTemplates:
if amount > threshold:
if threshold:
amount = amount/threshold
return template % amount
def test():
d = DowloadProfiler()
d.start()
for data in (2, 512, 2*KILOBYTES, 2*MEGABYTES, 2*GIGABYTES,
2*TERABYTES ):
time.sleep( 1)
d.more( data )
print d.displayTotal(), 'total'
print d.displayInstant(), 'instant'
if __name__ == "__main__":
test()
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