dmdz

[Andrei Alexandrescu]

On 03/18/2010 02:36 PM, Walter Bright wrote:
> BCS wrote:
>> Hello Andrei,
>>
>>> The idea is to not extract the files every time you build. If they are
>>> in place already, the tool should recognize that.
>>
>> The difference in speed between disk IO and CPU /might/ be high enough
>> that (unless the uncompressed file is cached or you round trip it back
>> to the disk) reading from the zip may be faster. I know that on linux
>> there is a way to pass a stream as a file name (I forget what happens
>> under the hood, but bash uses the ">(cmd)" syntax to do it) so you
>> could work with that.
>
>
> I'd argue that for this case, caching the extracted files is not worth
> the effort, complexity, or speed. If you're in an edit/compile/debug
> loop, I can't see working off of a zip file of the sources.

Of course not, but the typical scenario is to just run a program off its 
.zip file every so often. In that case, extraction makes for an 
unpleasant latency.

FWIW, for rdmd caching makes a big, big difference.


Andrei