ve to research that. Having the OS handle the
scheduling may be worth considering.
On Saturday, November 24, 2018 at 2:21:11 PM UTC-5, Jesse Alama wrote:
>
> Hi Brian,
>
> On 23 Nov 2018, at 21:46, Brian Adkins wrote:
>
> > I'm porting a web application from Ruby/Rails to
I'm glad to hear about the Racket web server's reliability! I'm still
working through the high level architecture, but it seems like one Racket
instance per core make sense to maximize cpu utilization, and then I may
spin up a thread per request w/in each process to maximize memory
utilization.
I'm porting a web application from Ruby/Rails to Racket, and I'd like
something to manage the Racket server processes.
In the Ruby world, I'm currently using Unicorn (
https://en.wikipedia.org/wiki/Unicorn_(web_server) ) prior to that I used
Nginx Passenger ( https://en.wikipedia.org/wiki/Phus
I like that. I really need to level up on Racket macros!
On Wednesday, November 21, 2018 at 3:19:55 PM UTC-5, Matthew Butterick
wrote:
>
>
> On Nov 21, 2018, at 9:30 AM, Brian Adkins > wrote:
>
> Thanks guys. I think I can live with:
>
> (for ([(i j) (in-di
the
> same result as the hash case.
>
> Vincent
>
>
> On Wed, 21 Nov 2018 10:55:23 -0600,
> Brian Adkins wrote:
> >
> > I thought it was possible to destructure a list in for, but I've been
> searching/experimenting for a while without success. I notice
I thought it was possible to destructure a list in for, but I've been
searching/experimenting for a while without success. I noticed this example
in the docs:
(for ([(i j) #hash(("a" . 1) ("b" . 20))])
(display (list i j)))
So, I assumed I could do this:
(for ([(i j) '(("a" 1) ("b" 20))])
to the current syntax
> transformer) to obtain the right lexical context.
>
> On Tue, Nov 20, 2018 at 8:26 AM Brian Adkins > wrote:
> >
> > I'm just beginning to dig in to Racket macros, so forgive the newbie
> question :) Is it possible to create a macro that wi
I'm just beginning to dig in to Racket macros, so forgive the newbie
question :) Is it possible to create a macro that will result in multiple
functions being defined?
I have a bunch of predicate functions, and I'm creating a parallel set of
assert functions that look like the following:
(defi
the port:
> https://docs.racket-lang.org/reference/port-buffers.html#(def._((quote._~23~25kernel)._file-stream-buffer-mode))
>
> -Philip
>
>
> On Thu, Nov 15, 2018 at 2:07 PM Brian Adkins > wrote:
>
>> That was it - thanks! I guess I was spoiled by Ruby's auto-flushing of
ppe
>
>
> Le jeu. 15 nov. 2018 à 19:51, Brian Adkins > a écrit :
>
>> I'm porting a Ruby application to Racket (will be deployed on Linux, but
>> I'm developing on OSX). It uses the s3270 terminal emulator to access a
>> mainframe. An exampl
I'm porting a Ruby application to Racket (will be deployed on Linux, but
I'm developing on OSX). It uses the s3270 terminal emulator to access a
mainframe. An example in Ruby is:
IO.popen('s3270 L:ssl3270.example.com:2023', 'r+') do |pipe|
pipe.puts "ascii"
puts (pipe.gets)
puts (pipe.gets
On Thursday, September 7, 2017 at 11:56:37 PM UTC-4, Jack Firth wrote:
> On Thursday, September 7, 2017 at 9:11:47 AM UTC-7, Brian Adkins wrote:
> > I'm considering having a group of programmers create micro-services in
> > various programming languages to be glued to
I'm considering having a group of programmers create micro-services in various
programming languages to be glued together into a single application. I would
like a communication mechanism with the following characteristics:
* Already supported by Racket, or relatively trivial to add
* More effic
On Tuesday, November 15, 2016 at 12:58:23 PM UTC-5, Brian Adkins wrote:
> On Tuesday, November 15, 2016 at 12:50:49 PM UTC-5, Brian Adkins wrote:
> > On Tuesday, November 15, 2016 at 11:53:37 AM UTC-5, johnbclements wrote:
> > > > On Nov 15, 2016, at 8:30 AM
On Tuesday, November 15, 2016 at 12:50:49 PM UTC-5, Brian Adkins wrote:
> On Tuesday, November 15, 2016 at 11:53:37 AM UTC-5, johnbclements wrote:
> > > On Nov 15, 2016, at 8:30 AM, Brian Adkins wrote:
> > >
> > > I'm working on a simple chess engine
On Tuesday, November 15, 2016 at 11:53:37 AM UTC-5, johnbclements wrote:
> > On Nov 15, 2016, at 8:30 AM, Brian Adkins wrote:
> >
> > I'm working on a simple chess engine in Racket as a learning exercise. I
> > initially wrote this function:
> >
> >
On Tuesday, November 15, 2016 at 11:30:54 AM UTC-5, Brian Adkins wrote:
> I'm working on a simple chess engine in Racket as a learning exercise. I
> initially wrote this function:
>
> (define (valid-queen-moves board idx is-opposite-color?)
> (append (valid-bishop-moves b
On Tuesday, November 15, 2016 at 11:30:54 AM UTC-5, Brian Adkins wrote:
> I'm working on a simple chess engine in Racket as a learning exercise. I
> initially wrote this function:
>
> (define (valid-queen-moves board idx is-opposite-color?)
> (append (valid-bishop-moves b
I'm working on a simple chess engine in Racket as a learning exercise. I
initially wrote this function:
(define (valid-queen-moves board idx is-opposite-color?)
(append (valid-bishop-moves board idx is-opposite-color?)
(valid-rook-moves board idx is-opposite-color?)))
I didn't like t
On Jun 8, 2016, at 2:20 PM, John Clements wrote:
>
>
>> On Jun 7, 2016, at 1:07 PM, Brian Adkins wrote:
>>
>> Just out of curiosity, is anyone attending RacketCon, but not attending
>> Strange Loop?
>>
>> I'm probably in the minorit
I noticed that the 2015 RacketCon had a "RAC" group code for the hotel. I
already booked my hotel, but it's a changeable/cancelable reservation, so is
there going to be a group discount for the hotel for this year's conference
also? If so, what is it, and when is it active?
Brian
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On Tuesday, June 7, 2016 at 4:07:36 PM UTC-4, Brian Adkins wrote:
> Just out of curiosity, is anyone attending RacketCon, but not attending
> Strange Loop?
>
> I'm probably in the minority, but there don't seem to be enough compelling
> sessions this year for me (
g flying in for RacketCon only. Seems a bit odd, but
saving $625 pays for most of the plane ticket, so that's a nice bonus :)
Brian Adkins
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> On Apr 5, 2016, at 6:51 AM, antoine wrote:
>
> > I'm open to other ideas, but :variable is used in a number of routing
> > string patterns in other languages/frameworks and seems fairly standard.
>
> My point was being standard with other racket work not other web framework.
I'd like to sti
On Apr 4, 2016, at 8:15 PM, David Vanderson wrote:
>
> On 04/04/2016 02:08 PM, Brian Adkins wrote:
>> (routes
>> ("/" home-page)
>> ("/:org_shortname/product_image/:style/:filename" product-image #:verbs
>> (get)
>>#:
; #:constraints ([filename ".*\\.xml$"])
> ;; a guard that break optimisations and expand
> #:when (not (equal? "abc" org-shortname))
> #:controller my-controller)
The list style might disallow something like:
"/product/item-:id" e.g. /product/item-473
or
On Monday, April 4, 2016 at 3:39:13 PM UTC-4, Matt Jadud wrote:
> Hi Brian,
>
>
> This looks similar to what "dispatch" does?
>
>
> https://docs.racket-lang.org/web-server/dispatch.html
>
>
>
> I've never extended the bi-directional patterns that are available, but there
> is an extension m
I've been looking into an appropriate syntax for routing web requests. For each
route, I'll need the following information:
* URL Pattern (required) e.g.
"/"
"/:org_shortname/product_image/:style/:filename"
"/:org_shortname/products/(*id).json"
* Function to handle request (required)
* Ac
On Monday, March 21, 2016 at 11:19:18 AM UTC-4, Neil Van Dyke wrote:
> I propose that it's time for `#lang racket/base` to have a `define/provide`.
>
> (Out of all the possible combinations of definition forms and other
> things we might often want to do with the defined identifier(s) at the
> s
vide and define definep as define?
>
>
> That doesn't answer the question about black magic though.
>
>
> On Mon, Mar 21, 2016 at 10:51 AM, Brian Adkins wrote:
> I've been porting my friend's Elixir code to Racket with great success. When
> I asked what th
On Friday, March 18, 2016 at 8:03:29 AM UTC-4, Neil Van Dyke wrote:
> Could anyone currently working through or teaching SICP please try out
> the new `#lang sicp` support, in Jens Axel Sogaard's `sicp` package in
> the new package system?
>
> http://docs.racket-lang.org/sicp-manual/
>
> If you
I've been porting my friend's Elixir code to Racket with great success. When I
asked what the equivalent of (provide my-func) was in Elixir, they mentioned
that you can define a private function with defp instead of def. For example:
defmodule MyModule do
def foo(a) do
...
end
defp ba
On Saturday, March 19, 2016 at 11:56:37 AM UTC-4, Brian Adkins wrote:
> On Saturday, March 19, 2016 at 11:45:46 AM UTC-4, Brian Adkins wrote:
> > I've put together a very simple (31 lines) example of parallel task
> > execution here:
> >
> > https://gist.githu
On Saturday, March 19, 2016 at 11:45:46 AM UTC-4, Brian Adkins wrote:
> I've put together a very simple (31 lines) example of parallel task execution
> here:
>
> https://gist.github.com/lojic/6cee4fcd4220e2788ece
>
> The example contains a lot of boilerplate (only a fe
I've put together a very simple (31 lines) example of parallel task execution
here:
https://gist.github.com/lojic/6cee4fcd4220e2788ece
The example contains a lot of boilerplate (only a few lines are specific to the
problem), so before I go about eliminating the boilerplate myself, I thought
I'
lumn) records the position of a queen in the
> column (or row). This reduces the computation of time O(f(N^2)) to O(f(N)),
> because only rows (or cullums) are considered, not all N^2 squares of the
> board.
> Jos
>
> -Original Message-
> From: Brian Adkins [mailto:lojicdo
0 gc time: 0
> (expt 10 4) : cpu time: 0 real time: 0 gc time: 0
> (expt 10 5) : cpu time: 0 real time: 0 gc time: 0
> (expt 10 6) : cpu time: 63 real time: 47 gc time: 32
> (expt 10 7) : cpu time: 203 real time: 140 gc time: 15
> (expt 10 8) : cpu time: 3183 real time: 2543 gc time: 1123
&
On Friday, March 11, 2016 at 9:01:38 PM UTC-5, Brian Adkins wrote:
> On Friday, March 11, 2016 at 7:42:22 PM UTC-5, Brian Adkins wrote:
> > I coded up a sequential and parallel version of N-Queens, then did a ton of
> > benchmark runs of 13-Queens to compare the time. For eac
On Friday, March 11, 2016 at 7:42:22 PM UTC-5, Brian Adkins wrote:
> I coded up a sequential and parallel version of N-Queens, then did a ton of
> benchmark runs of 13-Queens to compare the time. For each configuration
> (sequential or parallel w/ M workers), I ran the programs 6 tim
I coded up a sequential and parallel version of N-Queens, then did a ton of
benchmark runs of 13-Queens to compare the time. For each configuration
(sequential or parallel w/ M workers), I ran the programs 6 times, threw out
the high two & low two and averaged the middle two numbers.
The spread
to keep expanding the `for` macro to do more and more
>> towards the Lisp `do` macro is a bad move, IMHO, because it is so much more
>> complicated and non-orthogonal. It's better to make a test system that
>> integrates well with the rest of the language and to just
st system that
> integrates well with the rest of the language and to just use the language's
> features for extensibility.
>
> Jay
>
>
> On Tue, Mar 8, 2016 at 1:35 PM, Brian Adkins wrote:
> Not exactly. I'm looking for a way to run a function before *each*, of
On Tuesday, March 8, 2016 at 5:10:45 PM UTC-5, Brian Adkins wrote:
> I'm toying around with porting a small Elixir program to Racket. The
> following gist has both programs:
>
> https://gist.github.com/lojic/66c00514dab54b84c56e
>
> One thing that's quite awkward
I'm toying around with porting a small Elixir program to Racket. The following
gist has both programs:
https://gist.github.com/lojic/66c00514dab54b84c56e
One thing that's quite awkward in my Racket version is the need for the extra
place channels (ch1, ch2).
So, for example, the size function
suite > A nested test suite > Another test
> Another test
> FAILURE
> name: check-equal?
> location: unsaved-editor:17:26
> actual: 1
> expected: 2
> . Check failure
>
> (Before #f)
> 1 success(es) 1 failure(s) 0 error(s) 2 test(s)
and I don't feel that you should, you could
> look at current-check-around and do something like:
>
>
> (let ([old (current-check-around)])
> (parameterize ([current-check-around (lambda (c) (before!) (old c)
> (after!))])
> (check-equal? )
> (check-eq
Does RackUnit provide a facility similar to the setup & teardown functions of
other unit testing frameworks? In other words, I'd like to execute some code
before each test w/o coding each test to call a setup function or having to
create my own macro given how common this is.
As far as I can te
On Thursday, March 3, 2016 at 12:23:28 PM UTC-5, Brian Adkins wrote:
> On Thursday, March 3, 2016 at 12:15:27 PM UTC-5, antoine wrote:
> > There is the fastcgi protocol http://www.fastcgi.com/drupal/ (maybe it
> > is underlying rack and wsgi).
> > I have done basic tes
t; I haven't found any racket implementation so far.
>
> On 03/03/2016 04:16 PM, Brian Adkins wrote:
> > Is there anything analogous to Rack (Ruby) or WSGI (Python), i.e. a
> > standard protocol between web servers and web applications, in the Racket
> > worl
Is there anything analogous to Rack (Ruby) or WSGI (Python), i.e. a standard
protocol between web servers and web applications, in the Racket world?
http://rack.github.io/
https://www.python.org/dev/peps/pep-/#abstract
Thanks,
Brian
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>
> Vincent
>
>
>
>
> On Wed, 02 Mar 2016 11:50:56 -0600,
> Brian Adkins wrote:
>>
>> This is very premature, but out of curiosity, when is the deadline for
>> submitting talk proposals for Racketcon? I'd like to use the date as a
>>
On Saturday, February 27, 2016 at 8:15:41 PM UTC-5, Neil Van Dyke wrote:
> OK, I've moved 23 of my Racket packages from PLaneT to the new package
> system, and I plan to move several more. Exactly what's been moved, and
> is planned to move, is tracked at "http://www.neilvandyke.org/racket/";.
>
This is very premature, but out of curiosity, when is the deadline for
submitting talk proposals for Racketcon? I'd like to use the date as a
motivational tool to help me make enough progress on the web framework to be
talk-worthy!
Thanks,
Brian
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On Wednesday, March 2, 2016 at 12:17:55 AM UTC-5, Neil Van Dyke wrote:
> Brian Adkins wrote on 03/01/2016 11:31 PM:
> > Are there any particular license issues that I should be aware of in this
> > regard?
>
> I don't know. Looks like core Racket is now LGPLv3, which i
I've finally begun a project to create a web framework for Racket. Are there
any particular license issues that I should be aware of in this regard?
The MIT License is used by both Rails and Phoenix, and I've used it for other
side projects, so I'm inclined to use it for this new framework unles
If any of you happen to be in the Triangle area of NC, I created a Lisp &
Scheme meetup today:
http://www.meetup.com/Triangle-Lisp-Scheme/
I founded TriFunc in 2009 here, but the broad scope & niche interest has always
been a problem (especially after the Clojure (headquartered in the Triangle)
On Thursday, February 25, 2016 at 9:02:07 AM UTC-5, Robert Herman wrote:
> On Thursday, February 25, 2016 at 8:49:41 PM UTC+7, Brian Adkins wrote:
> > On Thursday, February 25, 2016 at 8:36:22 AM UTC-5, Robert Herman wrote:
> > > Cool, Brian!
> > >
> > > I am n
On Thursday, February 25, 2016 at 8:36:22 AM UTC-5, Robert Herman wrote:
> Cool, Brian!
>
> I am not able to scroll past the page view. The scroll is bottomed out, but
> clearly there is more text on your page. I am using Firefox to view.
>
> Just curious about your experience with pony lang? I
What is the process for providing additions to Racket's standard library? Do
people just submit pull requests, or is there a particular vetting process, to
determine whether a function is generally useful enough to warrant inclusion in
the standard library, that should happen first to avoid clut
On Wednesday, February 24, 2016 at 2:40:23 PM UTC-5, Robby Findler wrote:
> Scheme is great. Racket isn't Scheme, although it draws a ton of
> inspiration from the language and it's design. Viva Scheme! Viva
> Racket!
>
> Robby
I agree, but I have mixed emotions. The lisp community is better than
On Wednesday, February 24, 2016 at 12:24:59 PM UTC-5, Vincent St-Amour wrote:
> If we add up the "Racket" and "Scheme" numbers (the latter being, I
> suspect, mostly Racket), the total is pretty close to Ruby. I find that
> amusing. :)
>
> Actually, I'm curious what the numbers look like if you co
I began compiling very crude statistics on programming language popularity back
in 2009, and just kept doing it periodically. Initially I did it manually, but
I finally got smart and wrote the following Racket program to scrape the
results automatically:
https://gist.github.com/lojic/83fff86aee
On Friday, February 19, 2016 at 11:46:17 AM UTC-5, Neil Van Dyke wrote:
> BTW, I now intend to move my packages to the new package system shortly,
> and I'll then stop supporting the PLaneT ones.
>
> (There's some urgency to moving now, so I'm going to punt on workarounds
> for the version-relat
On Wednesday, February 17, 2016 at 1:53:56 PM UTC-5, Matthew Flatt wrote:
> At Wed, 17 Feb 2016 10:45:26 -0800 (PST), Brian Adkins wrote:
> > On Wednesday, February 17, 2016 at 10:28:48 AM UTC-5, Ben Greenman wrote:
> > > You should be able to install html-parsing now.
>
On Wednesday, February 17, 2016 at 10:28:48 AM UTC-5, Ben Greenman wrote:
> You should be able to install html-parsing now.
I'm no longer getting connection refused, but now I'm getting a 403.
$ raco pkg install html-parsing
Resolving "html-parsing" via
https://download.racket-lang.org/releases/
On Wednesday, February 17, 2016 at 10:35:44 AM UTC-5, Brian Adkins wrote:
> On Wednesday, February 17, 2016 at 10:20:21 AM UTC-5, Neil Van Dyke wrote:
> > Brian Adkins wrote on 02/17/2016 10:04 AM:
> > > http://www.neilvandyke.org/racket-html-parsing/
> > >
> >
On Wednesday, February 17, 2016 at 10:20:21 AM UTC-5, Neil Van Dyke wrote:
> Brian Adkins wrote on 02/17/2016 10:04 AM:
> > http://www.neilvandyke.org/racket-html-parsing/
> >
> > takes me to Neil's page with a more recent history: PLaneT 3:0 — 2015-04-24
>
I'm looking for an html parser that can handle real world web pages that are
typically invalid (similar to Ruby's Nokogiri). I came across recommendations
for the html-parsing package, so I went to:
https://pkgs.racket-lang.org/
I couldn't find it via the parsing or parser tags, but using my b
I'm trying to install the html-parsing package, and I'm getting a connection
refused error. Is this just a transient issue?
$ raco pkg install html-parsing
Resolving "html-parsing" via
https://download.racket-lang.org/releases/6.4/catalog/
tcp-connect: connection failed
address: mirror.racket-
On Sunday, January 31, 2016 at 1:05:17 PM UTC-5, Alexis King wrote:
> > On Jan 29, 2016, at 21:55, Brian Adkins wrote:
> >
> > Was any consensus reached on this? I've been working through some exercises
> > in Racket that a friend is implementing in Elixir, and I ju
Is there an advantage to having assoc return the associated list vs. the tail
of the associated list? Wouldn't it be better for it to behave more like
hash-ref ? Do folks typically just define their own function such as the
following ?
(define daynums (map list
'(sunday mon
On Wednesday, October 7, 2015 at 11:18:41 PM UTC-4, Sam Tobin-Hochstadt wrote:
> A few thoughts:
>
> 1. This is a great idea -- one of the reasons that I think Racket has
> avoided lots of little dialects despite syntactic flexibility is
> standardizing the community on one thing. I'm glad you're
On Thursday, January 28, 2016 at 5:30:57 PM UTC-5, Brian Adkins wrote:
> I'm sure this is a really bad idea, but I couldn't resist after finding
> section 3.3.8 in the Dr. Racket documentation - what fun :)
>
> (define (∃ member list)
> (cond [ (∅? list) ∅ ]
>
I'm sure this is a really bad idea, but I couldn't resist after finding section
3.3.8 in the Dr. Racket documentation - what fun :)
(define (∃ member list)
(cond [ (∅? list) ∅ ]
[ (≡ member (α list)) list ]
[ else (∃ member (ω list)) ]))
(∃ 8 '(3 9 8 5))
Using "alpha" for "car
On Tuesday, January 26, 2016 at 6:55:26 PM UTC-5, Brian Adkins wrote:
> On Tuesday, January 26, 2016 at 6:52:14 PM UTC-5, olopierpa wrote:
> > On Wed, Jan 27, 2016 at 12:46 AM, Brian Adkins wrote:
> >
> > > Ok, this is odd, it works with both Chrome and Safari *if* they&#x
On Tuesday, January 26, 2016 at 6:52:14 PM UTC-5, olopierpa wrote:
> On Wed, Jan 27, 2016 at 12:46 AM, Brian Adkins wrote:
>
> > Ok, this is odd, it works with both Chrome and Safari *if* they're not
> > already open when (help filter) is evaluated. If they are alread
On Tuesday, January 26, 2016 at 6:42:43 PM UTC-5, Brian Adkins wrote:
> On Tuesday, January 26, 2016 at 6:39:23 PM UTC-5, olopierpa wrote:
> > On Wed, Jan 27, 2016 at 12:35 AM, Brian Adkins wrote:
> >
> > > Just out of curiosity, does this work for anyone else? In other
On Tuesday, January 26, 2016 at 6:39:23 PM UTC-5, olopierpa wrote:
> On Wed, Jan 27, 2016 at 12:35 AM, Brian Adkins wrote:
>
> > Just out of curiosity, does this work for anyone else? In other words, in
> > the Dr. Racket repl:
> >
> > (require racket/help)
>
On Tuesday, January 26, 2016 at 6:30:59 PM UTC-5, Brian Adkins wrote:
> On Tuesday, January 26, 2016 at 6:21:13 PM UTC-5, Brian Adkins wrote:
> > On Tuesday, January 26, 2016 at 6:15:41 PM UTC-5, Brian Adkins wrote:
> > > On Tuesday, January 26, 2016 at 6:03:41 PM UTC-5, R
On Tuesday, January 26, 2016 at 6:21:13 PM UTC-5, Brian Adkins wrote:
> On Tuesday, January 26, 2016 at 6:15:41 PM UTC-5, Brian Adkins wrote:
> > On Tuesday, January 26, 2016 at 6:03:41 PM UTC-5, Robby Findler wrote:
> > > In DrRacket you can type f1 when your insertion po
On Tuesday, January 26, 2016 at 6:15:41 PM UTC-5, Brian Adkins wrote:
> On Tuesday, January 26, 2016 at 6:03:41 PM UTC-5, Robby Findler wrote:
> > In DrRacket you can type f1 when your insertion point is on the word "help".
> >
> > Robby
>
> Awesome - thanks.
up a more relevant page - the
search results for searching help with filter; where the command-line repl
opens up the page with the help for filter - the command-line (help) form
appears to expect a procedure symbol and shows the specific help for it.
> On Tue, Jan 26, 2016 at 4:28 PM, Brian
I was doing some reading on Scheme, and I came across the following page:
http://bastibe.de/2012-09-20-story-about-schemes.html
The author mentions:
"That said, I found plt-racket to be a joy to work with. (help filter) will
open your browser with the appropriate help page for filter. Amazing.
On Thursday, January 21, 2016 at 6:54:54 PM UTC-5, Neil Van Dyke wrote:
> If I understand correctly, you're ultimately looking for a general way
> that you can write this kind of record processing code simply in the
> future. And that, right now, you're investing some one-time
> experimental ef
On Thursday, January 21, 2016 at 2:53:48 PM UTC-5, Brian Adkins wrote:
>
> Ok, so the huge place channel for each worker isn't the main issue. I changed
> the code so the output process sends a message to the main process every N
> messages, and the main process waits on a
On Thursday, January 21, 2016 at 2:26:50 PM UTC-5, antoine wrote:
> To make it clear here is what i have in mind:
>
> #lang racket
>
> ;; dummy function, just remplace by A
> (define (do-stuff shared-data data-length)
> (values
>(make-bytes data-length 65)
>data-length))
>
> (define p
On Thursday, January 21, 2016 at 2:12:51 PM UTC-5, Brian Adkins wrote:
> On Wednesday, January 20, 2016 at 11:47:57 PM UTC-5, Brian Adkins wrote:
> > On Wednesday, January 20, 2016 at 11:28:59 PM UTC-5, Brian Adkins wrote:
> > > My initial experiment with places is a
On Wednesday, January 20, 2016 at 11:47:57 PM UTC-5, Brian Adkins wrote:
> On Wednesday, January 20, 2016 at 11:28:59 PM UTC-5, Brian Adkins wrote:
> > My initial experiment with places is a bit disappointing:
> >
> > Sequential version: cpu time: 2084 real time: 2091 gc tim
On Thursday, January 21, 2016 at 12:50:26 PM UTC-5, antoine wrote:
> Bonjour,
>
> Maybe for avoiding transforming mutable data to immutable data you could use
> make-shared-bytes and transfer the data by this mean? Don't know the
> underlying
> implementation of make-shared-bytes it didn't seem t
On Thursday, January 21, 2016 at 10:58:51 AM UTC-5, Sam Tobin-Hochstadt wrote:
> Hi Brian,
>
> A few suggestions:
>
> 1. You really want to use synchronization to determine when to end,
> not sleeping. Have each place write a message back to its parent when
> it is done, and have the parent wait
On Thursday, January 21, 2016 at 7:48:44 AM UTC-5, Robby Findler wrote:
> It may be the overhead of communicating the data is dominating the
> time spent working.
>
> Would it work to the main place open the file, count the number of
> lines, and then just tell the worker places which chunks of th
On Thursday, January 21, 2016 at 7:48:44 AM UTC-5, Robby Findler wrote:
> It may be the overhead of communicating the data is dominating the
> time spent working.
>
> Would it work to the main place open the file, count the number of
> lines, and then just tell the worker places which chunks of th
On Wednesday, January 20, 2016 at 11:28:59 PM UTC-5, Brian Adkins wrote:
> My initial experiment with places is a bit disappointing:
>
> Sequential version: cpu time: 2084 real time: 2091 gc time: 91
>
> Places version: cpu time: 16895 real time: 3988 gc time: 4244
>
>
My initial experiment with places is a bit disappointing:
Sequential version: cpu time: 2084 real time: 2091 gc time: 91
Places version: cpu time: 16895 real time: 3988 gc time: 4244
Using 8x the CPU time seems quite high.
And more importantly, the places version only wrote 128,541 lines to the
On Tuesday, January 19, 2016 at 1:13:44 AM UTC-5, Brian Adkins wrote:
> I've finalized the sequential version of my program to convert a large
> fixed-length field file into two distinct output files (one per table)
> suitable for bulk import into postgres.
>
> https://g
I've finalized the sequential version of my program to convert a large
fixed-length field file into two distinct output files (one per table) suitable
for bulk import into postgres.
https://gist.github.com/lojic/413f972bcaf1a6b156e2
On a single core, the runtime is 5.35x longer than the C progr
On Monday, January 18, 2016 at 11:23:37 AM UTC-5, Brian Adkins wrote:
> [...]
> Thanks. Yes, I have a lot of cleanup to do - I basically hacked this together
> as fast as I could to experiment.
>
> I had wondered about caching the soundex values in the past, so I just coded
>
>
> *** I tried a few more changes that avoid allocating intermediate
> bytes, but they are more complex and with 200K rows I estimate that
> the difference in run time would be only 0.02s. If I find something
> bigger, I'll write again.
>
> Gustavo
>
> PS: How man
On Sunday, January 17, 2016 at 2:54:39 PM UTC-5, Brian Adkins wrote:
> On Sunday, January 17, 2016 at 2:50:19 PM UTC-5, Brian Adkins wrote:
> >
> > With built-in string-trim, the lowest of three runs was 10293. Using your
> > string-trim the lowest of three runs was 76
On Sunday, January 17, 2016 at 2:50:19 PM UTC-5, Brian Adkins wrote:
>
> With built-in string-trim, the lowest of three runs was 10293. Using your
> string-trim the lowest of three runs was 7618, so it reduced the runtime by
> 26%.
Although, I probably should've menti
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