Author wangchun
Recipients wangchun
Date 2009-04-30.10:13:33
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Message-id <1241086416.5.0.850110966894.issue5885@psf.upfronthosting.co.za>
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Content
uuid.uuid1() currently uses two different ways to generate a uuid. If 
the system call "uuid_generate_time" is available, uuid1() uses the 
system call via the ctypes interface, otherwise, it uses pure Python 
code to generate a uuid. The problem is, the C interface 
"uuid_generate_time" is even slower than the Python code. The ctypes 
interface is too slow. According to my test, it took 55 microseconds to 
generate a uuid via ctypes interface but only 45 microseconds via the 
Python code. I also tried to test the performance of the 
"uuid_generate_time" C API itself. It takes C code 12 microseconds. Most 
of the time were wasted on ctypes. I believe we need to drop ctypes and 
write a Python extensions in C for this job.
History
Date User Action Args
2009-04-30 10:13:36wangchunsetrecipients: + wangchun
2009-04-30 10:13:36wangchunsetmessageid: <1241086416.5.0.850110966894.issue5885@psf.upfronthosting.co.za>
2009-04-30 10:13:35wangchunlinkissue5885 messages
2009-04-30 10:13:34wangchuncreate