Pre-proposal discussion: add a version of dropWhileEnd with different laziness properties to Data.List

[John Lato]

So I'm understanding this properly, there is a fast version of find-conduit
that uses RawFilePath, and the regular find-conduit that uses
system-filepath? Are there benchmarks published that compare the two?
On Sep 29, 2014 3:11 PM, "Greg Weber" <greg at gregweber.info> wrote:

> Yep, I didn't understand what was going on. The fast version of
> find-conduit was using a raw file path
> —
> Sent from Mailbox <https://www.dropbox.com/mailbox>
>
>
> On Mon, Sep 29, 2014 at 2:50 PM, Bardur Arantsson <spam at scientician.net>
> wrote:
>
>> On 2014-09-29 23:31, Greg Weber wrote:
>> >>
>> >>
>> >>> Do you mean system-filepath [1]?
>> >>
>> >> No. The api is ok, but performance is terrible because everything is a
>> >> String. Traversing large directories in Haskell is orders of magnitude
>> >> slower than it should be (unless you use posix-paths, which obviously
>> isn't
>> >> portable). I mean something that internally uses a RawFilePath on
>> posix
>> >> systems and some windows-specific thing on Windows.
>> >>
>> >>
>> > I don't know how to reconcile this statement with how find-conduit was
>> > benchmarked to operate about as fast as GNU grep since it uses
>> > system-filepath. I am probably missing something important.
>> >
>> http://hackage.haskell.org/package/find-conduit-0.4.1/docs/Data-Conduit-Find.html#t:FileEntry
>> >
>>
>> I'm not seeing exactly what "grep" has to do with "find"...?
>>
>> Did you mean to compare GNU find with "find-conduit"?
>>
>> Regards,
>>
>>
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