Martin Geisler <[EMAIL PROTECTED]> writes: > [...] This means that an empty Deferred occupies about 210 bytes in > memory. Adding a callback right away [...] increases the size per > Deferred to about 500 bytes.
Looking at the definition of the Deferred class one sees that it is quite simple: class Deferred: called = 0 paused = 0 timeoutCall = None _debugInfo = None debug = False def __init__(self): self.callbacks = [] # ... lots of methods ... Counting 4 bytes for the integers (called, paused), 4 bytes for the object references (timeoutCall, _debugInfo, callbacks), 1 byte for the boolean (debug) I get this to be about 21 bytes. But to this we must add quite a lot of overhead as explained here: http://groups.google.dk/group/comp.lang.python/msg/4e0f9800c5898334 Using the heuristic there, an integer takes up 32 bytes and an empty list takes up 40 bytes! Ugh... -- Martin Geisler _______________________________________________ viff-devel mailing list (http://viff.dk/) viff-devel@viff.dk http://lists.viff.dk/listinfo.cgi/viff-devel-viff.dk