[racket-dev] [racket] "lab notebook on learning process" (was: Re: Macros baffle me)

From: Sam Tobin-Hochstadt (samth at cs.indiana.edu)
Date: Tue May 6 14:01:40 EDT 2014

Right, I don't think that any of Artyom's comments are about the issue
that Matthias was bringing up, but I do think that's it a real issue.


On Tue, May 6, 2014 at 1:55 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> I don't think those are the things being complained about. I read a
> complaint about non-incremental GC, a complaint about DrRacket IO
> (which is really quite slow because it uses an editor which is
> overkill for a stream of text), possibly a complaint about the FFI
> (but maybe there's more there?). And, possibly even hiding in there is
> the usual complaint about scrolling. There's lots of work to do. :)
> Robby
> On Tue, May 6, 2014 at 12:43 PM, Sam Tobin-Hochstadt
> <samth at cs.indiana.edu> wrote:
>> On Tue, May 6, 2014 at 12:14 PM, Matthias Felleisen
>> <matthias at ccs.neu.edu> wrote:
>>>> > Why does he think "Performance sucks"?
>>>> Because here's the list of things that are slow
>>> DrRacket is an operating system running on top of your other OS
>>> to make life for Racket developers simple. It was originally developed
>>> for beginners, but I eat my own dog food, and I find it good (tm) for
>>> every day Racket work.
>>> To evaluate performance, run the programs at the command line. Measure
>>> there. Compare with other dynamically typed languages and report back
>>> what you find. If you still report performance problems, try to be precise.
>>> We are proud of Matthew and how far he has pushed Racket's performance on
>>> real software, the kind you use on a daily basis, not just minibenchmarks.
>> I think ultimately that this answer isn't enough. If everyone who
>> tries out Racket in the way we suggest comes away with the impression
>> that it's really slow, suggestions on the mailing list to measure
>> differently won't eliminate the negative first impression, let alone
>> for all the people who _don't_ ask about it.
>> Could we
>> - warn people when they use `time` in DrRacket?
>> - provide a "performance" mode that runs programs out-of-process, or
>> just in another place?
>> - something else?
>> Sam
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