Summary of memory consumption improvements

[John Arbash Meinel]

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John Arbash Meinel wrote:
> So I put together a checkpoint of where I'm at WRT memory and speed
> improvements for 'bzr branch'. The numbers here are for local branching,
> with both bzr.dev and bzr/2.0. I did a local branch of both 'bzr.dev'
> and 'launchpad' repository, on my local machine and on a 64-bit machine
> from Vincent.
> 

Some updated numbers for bzr.dev now that the chk_map updates have
landed. Note that on the 64-bit machine, it is currently running a few
other processes (I think the babune slaves?) so the time info probably
doesn't compare with the previous values.

> 
> 64-bit bzr.dev
>     568MB   1m22s   bzr 2.0.1
>     411MB   1m16s   bzr.dev @4759
> 

      571MB   1m46s   bzr 2.0.1
      389MB   1m32s   bzr.dev @4771

> 64-bit launchpad
>     1301MB   7m9s   bzr 2.0.1
>      954MB   5m30s  bzr.dev @4759

      1301MB   7m14s  bzr 2.0.1
       858MB   6m30s  bzr.dev @4771

> 
> 32-bit bzr.dev
>     388MB   1m51s   bzr 2.0.1
>     224MB   1m40s   bzr.dev @4759
> 

      412MB   2m15s   bzr 2.0.1
      206MB   2m02s   bzr.dev @4771

> 32-bit launchpad
>     901MB   10m24s  bzr 2.0.1
>     548MB   8m39s   bzr.dev @4759

      903MB   10m55s  bzr 2.0.1
      455MB   8m39s   bzr.dev @4771

John
=:->
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