[Info-vax] improve performance of /EXCLUDE

[David Froble]

Phillip Helbig (undress to reply) wrote:
> In article <8$08X6aM9z$G at eisner.encompasserve.org>,
> cornelius at eisner.decus.org (George Cornelius) writes: 
> 
>> DIRECTORY, at least, seems to not know to only access to the file header
>> when turns out it will actually need information from the header, although
>> it does know how to do it in the simple case, i.e., without a qualifier
>> like /size .
>>
>> Apparently it goes all the way through to accessing the header for all
>> files being considered in the second case before checking whether the
>> /EXCLUDE would have applied.
> 
> Right.
> 

I'm thinking that the usage of a feature might have some bearing on 
additional work on that feature.

How many times in a second do you perform such operations?

I can understand wanting arithmetic operations that are repeated 
millions of time in a program to need optimization.

For a one time interactive operation, maybe not so much ....

When I was young, lo those many years ago, each fall the mail order 
companies would send out their "Christmas Catalogs", and we'd pour 
through them wishing on all kinds of things.  Is this what the emergence 
of VSI means to some, the opportunity to wish on all kinds of things?