RFC: startup time - again

John Arbash Meinel john at arbash-meinel.com
Tue Sep 9 22:41:43 BST 2008


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Robert Collins wrote:
> On Tue, 2008-09-09 at 16:23 -0500, John Arbash Meinel wrote:
>> So even if 'import locale' is only 12.4ms, it is 12.4ms / 48.9ms of
>> the time
>> to 'import bzrlib'. And it is *much* slower on win32. (rocks is 500ms
>> versus
>> 82.8ms)
> 
> You forgot
> 
> TIMEIT "python -c ''"
> 
> :)
> 
> -Rob

On linux, 8.87ms. Though it can also 'peak' at 39ms.

If/when I reboot, I can give some numbers for Windows and cygwin on this machine.

I'll also mention:

TIMEIT "/bin/true"
1.86ms

TIMEIT "git --help >/dev/null"
2.36ms

So a compiled app does have a significant benefit for raw startup.

John
=:->
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