Please see the Backends talk from Google IO (http://www.youtube.com/watch?v=-kepYfCBg6w).
It is mentioned in this talk that a single thread is only able to use 2.4Ghz of cpu. This is why a B4 and B8 appear the to have the same amount of cpu time in your example. To take full advantage of the cpu available in a B8, you have to use the java runtime at the moment. It is important to note that a B8 also has twice the memory that a B4 has. This means you may still want to use a B8 python backend to take advantage of the 1GB of ram. On 13 May 2011 09:23, Robert Schuppenies <[email protected]> wrote: > And you could also use the timeit module > (http://docs.python.org/library/timeit.html): > """ > import timeit > print timeit.Timer('"喔喔".decode("utf-8")').timeit() > """ > On Fri, May 13, 2011 at 2:48 AM, Brandon Wirtz <[email protected]> wrote: >> >> Add 50 characters and double your loop amount. You aren't pushing it >> hard enough that you get an accurate number. >> >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of ?? >> Sent: Friday, May 13, 2011 2:07 AM >> To: Google App Engine >> Subject: [google-appengine] B8 vs B4 vs B2 vs B1 , B8 = B4 ? >> >> def test(i = 1000000): >> t = datetime.datetime.now() >> while i: >> i -= 1 >> '喔喔'.decode('utf-8') >> print datetime.datetime.now()-t >> >> test() >> >> >> B8 time: 0:00:01.520756 >> >> B4 time: 0:00:01.524307 >> >> B2 time: 0:00:02.342202 >> >> B1 time: 0:00:03.492686 >> >> >> B8 = B4 ? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/google-appengine?hl=en. >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/google-appengine?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-appengine?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
