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  1. Bug #593560
  2. Comment #18

Comment 18 for bug 593560

Revision history for this message
John A Meinel (jameinel) wrote : Re: [Bug 593560] Re: Slow performance for many operations on the gcc code import branches

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Loïc Minier wrote:
> time bzr co 4.4 test1
> bzr co 4.4 test1 1484,59s user 69,65s system 93% cpu 27:38,51 total
>
> (bzr remove-tree)
>
> time bzr co --lightweight --lsprof-file colw-nosourcewt.lsprof test1 test2
> Profile data written to "colw-nosourcewt.lsprof".
> bzr co --lightweight --lsprof-file colw-nosourcewt.lsprof test1 test2 172,49s user 33,52s system 76% cpu 4:28,71 total
>

I'm having a hard time parsing your 'time' output, but it at least looks
like:

bzr co 4.4 test1 ... 27:38,51
bzr co --lightweight ... test1 test2 4:28,71

Which says it is about 6-7x faster to do the checkout without having a
source working tree... (And that is even while running --lsprof.)

Certainly it looks like we may want a way to tell bzr *not* to look at
source working trees when building a new WT.

John
=:->
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