[asdf-devel] Fwd: Faster loading for deployed systems?

[Erik Pearson]

Hi Robert,

On Sun, Apr 22, 2012 at 3:24 PM, Erik Pearson <erik at defun-web.com> wrote:

> Hi Robert,
>
> Thanks for the Sunday afternoon reply.
>
> On Sun, Apr 22, 2012 at 2:31 PM, Robert Goldman <rpgoldman at sift.info>wrote:
>
>> On 4/22/12 Apr 22 -3:47 PM, Faré wrote:
>> > Dear Erik,
>> >
>>
>> >> ASDF assumes that since the system def file has not changed, the system
>> >> hasn't been changed either (I know there has been discussion of this
>> >> assumption.) But lets assume that at least part of the reason for that
>> is
>> >> because it is very time consuming to check the entire set of files
>> every
>> >> time the developer wants to recompile and load just a single file.
>> >>
>> > I don't think that's true, but my head hurts just thinking about it
>>
>
Sorry, this was me being confused by my own tracing of asdf operations, and
not thinking before I typed. I had placed a debugging line in the call to
"safe-file-write-date" to see how ofen this is called in during a load. I
thought it was not being called on source files just .asd files, but this
was incorrect. I had probably already changed something, or been confused
about the multiple calls made on systems -- the first call will get the
file write date on both source and compiled (if any), but subsequent calls
only on the compiled.

Erik.
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