BTree + CHK Inefficiencies

[John Arbash Meinel]

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John Szakmeister wrote:
> On Wed, Aug 4, 2010 at 2:55 PM, John Arbash Meinel
> <john at arbash-meinel.com> wrote:
> [snip]
>> So this cuts 152MB out of peak memory (62% peak vs orig, almost half). I
>> did time them, but the numbers are within noise margins at this point.
>>
>> Note that the peak memory numbers get even better for 64-bit machines.
>> The data types are fixed between 32/64bit machines, so we should always
>> scale at ~43bytes/record. (vs 234 that I measured before, vs ~400+ for
>> 64-bit machines.)
>>
>> I'm still tweaking it a bit, but the memory numbers are definitely there.
> 
> This is awesome stuff John.  Will this help with checkout as well?
> 
> Great job!
> 
> -John
> 

Yeah, it is actually written for checkout, but I could trigger the base
bug using 'bzr ls -R' without having to actually extract file content.

John
=:->
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