Re: Time to compile

[Bram Moolenar]

>Derek Teaney wrote:

>> I have a list of about 40 files and it takes quite some time (12 s)=20
>> to decide what to do compile.  Would 400 files then take 2 minutes?

> A-A-P computes a checksum to find out if the file contents has=20
> changed.  If your processor is slow this may take a while.  I have=20
> worked with Aap and very many files without big delays.  It does=20
> depend on the speed of your machine, of course.  Only checking=20
> timestamps will be faster, but less accurate.  And after doing "touch=20
> file" a file may seem outdated, causing a lot of work to be done even=20
> when its contents didn't actually change.  That's wasting time then.

Just an idea.  Could checksums be computed only if timestamps
differ (regardless of ordering of timestamps)?  Size might also be=20
checked for a bit more safety, when timestamps are identical.  That=20
might speed up things for big projects, without adverse effects in=20
practice.

--=20
Fran=E7ois Pinard   http://pinard.progiciels-bpi.ca


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