Also, which version of Racket are you using? With v6.1.1 and
`in-range`, I get
cpu time: 745 real time: 744 gc time: 0
cpu time: 205 real time: 205 gc time: 0
cpu time: 782 real time: 782 gc time: 0
cpu time: 205 real time: 206 gc time: 0
but with v6.2 and `in-range`, I get
cpu time: 209
Hi,
A little stress test seems to suggest that the JIT is currently not able to
optimize closures with static arguments:
https://gist.github.com/Metaxal/4beb286cacc0966b433a
That's a simplified version of some cases of mine where several complex
procedures that look very much alike, so I'd
I think you want to use `in-range`. On my machine, adding `in-range`
makes each loop run 20 times faster --- which means that the original
loops are just testing the performance of the generic sequence case of
`for`.
(Probably we should make `for` recognize and specialize literal
integers, and I
Laurent wrote on 07/31/2015 09:05 AM:
That's a simplified version of some cases of mine where several
complex procedures that look very much alike, so I'd really like to
avoid copy/paste/maintain, but these procedures are also inside
intensive loops, so I'd really like to not sacrifice speed.
Oh wow, this makes a huge difference indeed! (both in-range and v6.2)
Congrats for the efforts put in the new version!
I don't really understand why `in-range` makes such a difference. It looks
like the kind of sequence iterator is tested at each step, whereas I was
expecting it to be tested only
In particular, I often have a keyword #:update? to modify (set!) some
variables, a keyword #:debug? to print some values on screen and perform
some tests, and without these keywords the procedure is completely
functional.
So I suspect that the non-update non-debug version would be much faster if
On 29/07/2015 17:46, Vincent St-Amour wrote:
The full program of (fifth RacketCon) is now available! [1] Don't
forget
to register! [2]
For those not able to go to St Louis, will this be videotaped?
Thanks.
--
Paulo Matos
--
You received this message because you are subscribed to the
Yes, the plan is to both videotape and live stream the talks, like we
did in previous years.
You're welcome to hop on IRC (#racket on Freenode) during RacketCon and
join the discussions!
Vincent
On Thu, 30 Jul 2015 03:16:58 -0500,
Paulo Matos wrote:
On 29/07/2015 17:46, Vincent St-Amour
Yes indeed (and thanks all).
My question still holds though: Can I expect the JIT to optimize the cases
of my primary concern? (Or are these cases unlikely to be a bottleneck?)
I'm unsure about how to set up correct stress tests as the JIT does a good
job at optimizing a number of things and then
Suppose I have a macro (experiment ...) which is intended, among other things,
to be composed of uses of a macro (collect ...).
For instance:
(experiment
(collect ...)
(collect ...) ...)
To my understanding, collect is not a literal. Can I turn the collect macro
itself into a syntax class
You might want to specify collect in #:datum-literals if it is not a
defined name.
Can you describe some usage examples? That may lead to better insight
for the implementation.
On Fri, Jul 31, 2015 at 11:49 AM, Deren Dohoda deren.doh...@gmail.com wrote:
Suppose I have a macro (experiment ...)
At Fri, 31 Jul 2015 15:03:53 +0100, Laurent wrote:
I don't really understand why `in-range` makes such a difference. It looks
like the kind of sequence iterator is tested at each step, whereas I was
expecting it to be tested only at the beginning of the loop, since this
sequence iterator kind
Hi Stephen,
At the moment, collect is syntax, itself defined through syntax-parse. So
you suggest making collect a literal and changing the underlying macro
name?
It's part of a #lang experiment I'm writing which manages a series of
actions from a controller. The file, when required, provides a
On Fri, Jul 31, 2015 at 5:40 PM, Matthew Flatt mfl...@cs.utah.edu wrote:
At Fri, 31 Jul 2015 15:03:53 +0100, Laurent wrote:
I don't really understand why `in-range` makes such a difference. It
looks
like the kind of sequence iterator is tested at each step, whereas I was
expecting it to
On Monday, July 27, 2015 at 1:15:31 AM UTC-7, mazert wrote:
Le 27/07/2015 04:13, Jason Yeo a écrit :
Hi Everyone!
For anyone out there who finds IRC too daunting and difficult to use,
there's a slack team created just for racketlang at
http://racket.slack.com. Get invites to the team
Wow, is it two way then?
On Fri, Jul 31, 2015 at 9:03 AM, Jack Firth jackhfi...@gmail.com wrote:
On Monday, July 27, 2015 at 1:15:31 AM UTC-7, mazert wrote:
Le 27/07/2015 04:13, Jason Yeo a écrit :
Hi Everyone!
For anyone out there who finds IRC too daunting and difficult to use,
16 matches
Mail list logo
