On Tue, Nov 27, 2012 at 7:25 PM, Nicolas Trangez wrote:
> Michael,
>
> On Tue, 2012-11-27 at 17:14 +0200, Michael Snoyman wrote:
> > I think the stm-conduit package[1] may be helpful for this use case.
> > Each time you get a new command, you can fork a thread and give it the
> > TBMChan to write
https://github.com/dlthomas/tzcache
A small bit of code, but seems likely to be useful enough that I figured I
should share.
I've a few notes/questions:
1) Does this already exist somewhere I missed?
2) It seems silly to make this its own library - any suggestions where it
could be added?
3) I
On 12-11-27 04:40 AM, kudah wrote:
On Tue, 27 Nov 2012 02:20:35 -0500 "Albert Y. C. Lai"
wrote:
When "cabal build" succeeds, it always says:
(older) "registering -"
(newer) "In-place registering -"
That's what it says. But use ghc-pkg and other tests to verify that
no registration whatsoever
On Tue, Nov 27, 2012 at 9:45 PM, Jeff Shaw wrote:
> On 11/27/2012 2:45 PM, Gershom Bazerman wrote:
>>
>> HDBC-odbc has long used the wrong type of FFI imports, resulting in
>> long-running database queries potentially blocking all other IO. I just
>> checked, and apparently a patch was made to the
On 11/27/2012 2:45 PM, Gershom Bazerman wrote:
HDBC-odbc has long used the wrong type of FFI imports, resulting in
long-running database queries potentially blocking all other IO. I
just checked, and apparently a patch was made to the repo in September
that finally fixes this [1], but apparentl
Great, thanks for this great work!
One of the things I _love_ about haskell and it's community is that
"language-x" packages. I really love playing with source code and compiling
to other languages. And working with Haskell, thanks to that "language-x"
packages, make this a joy.
And recently I al
* Mike Meyer [2012-11-27 13:40:17-0600]
> Lazyness, on the other hand ... I haven't thought about. I suspect you
> need to force the evaluation of everything you're going to need before
> you start the critical region, but I wonder if that's enough? Has
> anyone out there investigated this?
I don
http://hackage.haskell.org/packages/archive/base/4.6.0.0/doc/html/System-Mem.html#v:performGC
On Tue, Nov 27, 2012 at 5:52 PM, wrote:
> What triggers GC in haskell? We obviously aren't using Java's method of GC
> as needed(for good reasons, Java's method is terrible because you get slow
> downs
On 11/27/2012 06:46 PM, Alfredo Di Napoli wrote:
Thanks for the effort!
Now, what about some documentation? :P
Sure ! Fork away, and send pull requests :-)
--
Vincent
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What triggers GC in haskell? We obviously aren't using Java's method of GC
as needed(for good reasons, Java's method is terrible because you get slow
downs when you need speed the most). But we should be able to learn
something from Java and have a gc::IO() method that one could call BEFORE a
On 11/27/12 2:17 PM, Jason Dagit wrote:
Based on that I would check the FFI imports in your database library.
In the best case (-threaded, 'safe', and thread-safe odbc), I think
you'll find that N of these can run concurrently, but here your number
of requests is likely to be much greater tha
On Tue, Nov 27, 2012 at 3:45 AM, Gregory Collins
wrote:
> If you have a hard real-time requirement then a garbage-collected
> language may not be appropriate for you.
This is a common meme, but frankly, it isn't true. When writing
real-time code, you just need to make sure that everything that
ha
On Tue, Nov 27, 2012 at 11:17 AM, Jason Dagit wrote:
>
>
> On Tue, Nov 27, 2012 at 11:02 AM, Jeff Shaw wrote:
>
>> Hello Timothy and others,
>> One of my clients hosts their HTTP clients in an Amazon cloud, so even
>> when they turn on persistent HTTP connections, they use many connections.
>> U
On Tue, Nov 27, 2012 at 11:02 AM, Jeff Shaw wrote:
> Hello Timothy and others,
> One of my clients hosts their HTTP clients in an Amazon cloud, so even
> when they turn on persistent HTTP connections, they use many connections.
> Usually they only end up sending one HTTP request per TCP connectio
Hello Timothy and others,
One of my clients hosts their HTTP clients in an Amazon cloud, so even
when they turn on persistent HTTP connections, they use many
connections. Usually they only end up sending one HTTP request per TCP
connection. My specific problem is that they want a response in 12
Thanks for the effort!
Now, what about some documentation? :P
Cheers,
A.
On 27 November 2012 18:26, Vincent Hanquez wrote:
> Hi Cafe,
>
> with the approval of Niklas, the original author and maintainer, i'll be
> maintaining language-java for now. I've uploaded a new version on hackage
> [1] wit
Hi Cafe,
with the approval of Niklas, the original author and maintainer, i'll be
maintaining language-java for now. I've uploaded a new version on
hackage [1] with some minor improvements and the repository is now
hosted on github [2].
Thanks Niklas for language-java !
[1] http://hackage.h
FWIW, some very core libraries do this:
http://hackage.haskell.org/packages/archive/bytestring/0.10.2.0/doc/html/src/Data-ByteString.html
(see very top of linked source file)
Perhaps a more general solution would be for GHC to take the internet
explorer route and require a special javascript in
Michael,
On Tue, 2012-11-27 at 17:14 +0200, Michael Snoyman wrote:
> I think the stm-conduit package[1] may be helpful for this use case.
> Each time you get a new command, you can fork a thread and give it the
> TBMChan to write to, and you can use sourceTBMChan to get a source to
> send to the c
On 11/27/2012 04:18 PM, Heinrich Apfelmus wrote:
> Nathan Hüsken wrote:
>> Hey,
>>
>> When writing games in other (imperative) languages, I like to separate
>> the game logic from the rendering. For this I use something similar to
>> the observer pattern.
>>
>> With rendering I mean anything only r
Could you give us more info on what your constraints are? Is it necessary
that you have a certain number of connections per second, or is it necessary
that the connection results very quickly after some other message is
received?
-- Původní zpráva --
Od: Johan Tibell
Datum: 27
Nathan Hüsken wrote:
Hey,
When writing games in other (imperative) languages, I like to separate
the game logic from the rendering. For this I use something similar to
the observer pattern.
With rendering I mean anything only related to how objects are drawn to
the screen. Animation state for e
I think the stm-conduit package[1] may be helpful for this use case. Each
time you get a new command, you can fork a thread and give it the TBMChan
to write to, and you can use sourceTBMChan to get a source to send to the
client.
Michael
[1] http://hackage.haskell.org/package/stm-conduit
On Tue
Kazu and Andreas, could this be IO manager related?
On Monday, November 26, 2012, Jeff Shaw wrote:
> Hello,
> I've run into an issue that makes me think that when the GHC GC runs while
> a Snap or Warp HTTP server is serving connections, the GC prevents or
> delays TCP connections from forming. M
Dnia wtorek, 27 listopada 2012, Gregory Collins napisał:
> Did you pass the option to criterion asking it to do a GC between
> trials?
Yes.
> You might be measuring a GC pause.
>
> On Tue, Nov 27, 2012 at 2:41 PM, Janek S. wrote:
> > Dnia wtorek, 27 listopada 2012, Jake McArthur napisał:
> >>
Did you pass the option to criterion asking it to do a GC between
trials? You might be measuring a GC pause.
On Tue, Nov 27, 2012 at 2:41 PM, Janek S. wrote:
> Dnia wtorek, 27 listopada 2012, Jake McArthur napisał:
>> I once had a problem like this. It turned out that my laptop was stepping
>> th
Dnia wtorek, 27 listopada 2012, Jake McArthur napisał:
> I once had a problem like this. It turned out that my laptop was stepping
> the cpu clock rate down whenever it got warm. Disabling that feature in my
> BIOS fixed it. Your problem might be similar.
I just check - I disabled frequency scaling
I once had a problem like this. It turned out that my laptop was stepping
the cpu clock rate down whenever it got warm. Disabling that feature in my
BIOS fixed it. Your problem might be similar.
On Nov 27, 2012 7:23 AM, "Janek S." wrote:
> I tested the same code on my second machine - Debian Sque
Hey!
I'd like to invite you to the 1st São Paulo Haskell Meeting! It's
going to be something simple, we just want to meet each other and talk
about Haskell =). We already have 9 people confirmed on the Google+
event [1], so come join us already!
Cheers,
PS: We still didn't set the place yet.
I tested the same code on my second machine - Debian Squeeze (kernel 2.6.32)
with GHC 7.4.1 - and
the results are extremely surprising. At first I was unable to reproduce the
problem and got
consistent runtimes of about 107us:
benchmarking FFI/C binding
mean: 107.3837 us, lb 107.2013 us, ub 10
All,
I've written a library to implement servers for some protocol using
Conduit (I'll announce more details later).
The protocol supports pipelining, i.e. a client can send a 'command'
which contains some opaque 'handle' chosen by the client, the server
processes this command, then returns some
Nathan Hüsken wrote:
> > In fact it could be a (free) monad:
> >
> > myApp :: MyWire a (GameDelta ())
> >
> > someDelta :: GameDelta ()
> > someDelta = do
> > randomPos <- liftA2 (,) getRandom getRandom
> > replicateM_ 4 (addCreature randomPos)
> > getPlayerPos
GHC has a "stop the world" garbage collector, meaning that while major
GC is happening, the entire process must be halted. In my experience
GC pause times are typically low, but depending the heap residency
profile of your application (and the quantity of garbage being
produced by it), this may not
On Tue, 27 Nov 2012 02:20:35 -0500 "Albert Y. C. Lai"
wrote:
> When "cabal build" succeeds, it always says:
>
> (older) "registering -"
> (newer) "In-place registering -"
>
> That's what it says. But use ghc-pkg and other tests to verify that
> no registration whatsoever has happened.
It doesn
On 11/27/2012 07:12 AM, Ertugrul Söylemez wrote:
> Nathan Hüsken wrote:
>
>> When writing games in other (imperative) languages, I like to separate
>> the game logic from the rendering. For this I use something similar to
>> the observer pattern.
>>
>> [...]
>>
>> So I am wondering: Is there (or
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