Re: minor pauses

27;s assuming there is something blocking for an extended period of time that is causing it. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts

Re: minor pauses

> * GC kicking in -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCTimeStamps Will tell you immediately. A couple of hundred ms seems very very plausible for GC. What is your target/desired maximum pause time? -- / Peter Schuller -- You received this message because you are subscribed to

Re: Getting clojure projects into maven central - aot vs sources, -javadoc and -sources artifacts

nts (a rapidly-growing category these days). Ok. Will see how far I take it once I get it working first. Thank you for the input, -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clo

Getting clojure projects into maven central - aot vs sources, -javadoc and -sources artifacts

plru [2] https://docs.sonatype.org/display/Repository/Sonatype+OSS+Maven+Repository+Usage+Guide -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that p

Re: java 7

expected to help much in the general case (but I am certainly no expert here). Would not multimethods be the main candidate for invokedynamic? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send emai

Re: The non-Enclojure Clojure plugin homepages are all rather hard to find.

> FYI, the main page of ccw is manually maintained and contains up to date > information wrt current plugin status. > That's maybe why you didn't have to /specifically/ complain 'bout ccw itself > ;-) Yes, it seems more "obviously maintained" than most :) -

Re: The non-Enclojure Clojure plugin homepages are all rather hard to find.

sh intro as to what it is etc. Again, just another POV. Take it with a grain of salt. But know that I'm speaking *as a developer*, just not as a developer *of those things* that I am trying to find/use/read about. -- / Peter Schuller -- You received this message because you are subscrib

Re: Time/size bounded cache?

s a LInkedArrayList, but if it matters to you do have it be persistent/immutable... -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new

Re: Python is way faster than Clojure on this task

Not that there is no reason to set ms=mx (there are reasons), but the need to do so tends to be over-stated in my opinion. But if I'm missing something I'd like to know about it :) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups

Re: Python is way faster than Clojure on this task

> For 30 second worth of calculations, this doesn't look to bad to me. If that was for all of the 30 seconds then yeah, GC is not the issue. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this gr

Re: Python is way faster than Clojure on this task

are not quite so bad in terms of time spent doing GC that the JVM throws an exception, yet bad enough to cause very frequent full GC:s at considerable cost in CPU time.) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To

Re: Some programs require much more memory in Clojure 1.3 alpha1

tGC -XX:+PrintGCDetails and look at the heap size after a full collection. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members a

Re: Is it possible in theory to write/modify a Clojure compiler that doesn't

invocation for performance reasons? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient

Re: Clojure 1.3: Integrating clj-stacktrace?

+1 on improving stack traces (though I haven't had experience with clj-stacktrace, other than what I have read on this list). -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send e

Re: Game development in Clojure

p-the-world GC. The likelyhood of this happening is higher the lower the pause time goal you specify. An starter command line to play with (preferably with jdk 1.7) might be: -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:MaxGCPauseMillis=15 -XX:GCPauseIntervalMillis=20 -- / Peter Schuller --

Re: slow raw io

ead, poorer cache locality, etc). (Note that I'm not arguing the point of whether or not it should be committed before 1.2, but I'm genuinely interested in why not reading one character (or byte) at a time would be a controversial change.) -- / Peter Schuller -- You received this me

Re: java.lang.OutOfMemoryError

ntext. I tried reproducing just now and I was not able to trigger any memory use beyond what I expected. Do you have a self-contained fully working example that you can point to (preferably with your actual data files + code, but otherwise just the code)? -- / Peter Schuller -- You receiv

Re: Programming Clojure: Snake: update-positions: What does the "do" do here?

creates an apple, and presumably an "apple" is something which is callable (probably a map, so that when called with the return-value of (alter snake move) it simply returns nil or some value associated with that key). -- / Peter Schuller -- You received this message because you are s

Re: Why no tail call optimization

ould suffer potentially very extreme performance impacts which aren't fixed by just avoiding allocation as is mentioned in the erjang wiki page. Or is this over-stating the problem? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure"

Re: fast development through clojure repl

s, is probably to install the swank-clojure package via ELPA: http://tromey.com/elpa/ There is something similar for vim (I'm sure a vim user will chime in). If you're rather looking for overall workflows/program structure/best practices etc - good question. :) -- / Peter Schuller --

Re: java.lang.OutOfMemoryError

before second print (1 2 3 4 5 6) So; consuming a lazy data structure while retaining a reference to its head, will result in memory use similar to that which you may have expected if the data structure was not lazy to begin with. -- / Peter Schuller -- You received this message because you are subscr

Re: java.lang.OutOfMemoryError

y sure that's > making your sequence non-lazy. Correct me if I'm wrong but that should only apply to the list of list that concat is supposed to be concatenating; the contents of *those* lists would still be lazy (if the original list was lazy to begin with). -- / Peter Schuller --

Re: java.lang.OutOfMemoryError

urned by concat would be lazy in and of itself, ultimately there will be the non-lazy return value of Pattern.split() in memory. Also, is it considered idiomatic to rely on lazyness in cases like this, anyone? -- / Peter Schuller -- You received this message because you are subscribed to the

Re: filtering with multiple predicates

> Is there a more terse way to express the same thing?  I suspect there > is a mechanism similar to (or perhaps a generalization of) composition > for that, but I couldn't find it in the API docs. http://stackoverflow.com/questions/2822140/function-composition-clojure -- /

Re: Aleph and Conjure

n with node.js it's relevant to point out that no, clojure doesn't inherently get you massive concurrency even if you can most definitely do threading/asynch mixing with clojure like with most languages. -- / Peter Schuller -- You received this message because you are subscribed to th

Re: Aleph and Conjure

> You can build a scalable app with Conjure on Jetty.  You don't need an > evented server like Aleph or node.js to build a scalable app. Depends on what you mean by scalable. If you want to keep 250 000 concurrent mostly idle connections, you'll likely want to be event bas

Re: IDE agnostic question on user assistance (emacs/vimClojure users help appreciated too !)

as going on. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe

Re: IDE agnostic question on user assistance (emacs/vimClojure users help appreciated too !)

line history retained might make a fresh normalized REPL easily accessible in a way that doesn't involve re-typing lots of stuff (while clearly not preserving actual state other than history)? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups &

Re: persistent LRU cache (request for input)

structures though, with a similar inappropriateness for a functional interface, where full participation as a persistent data structure with respect to STM would be desirable. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To po

Re: persistent LRU cache (request for input)

rying to figure out the most idiomatic way of providing a convenient LRU cache for use in Clojure, with persistent semantics. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to cloju

Re: persistent LRU cache (request for input)

between that and my suggested side-effectful interface, it seems to me, is that while my first suggestion had the primary interface be functional but to provide a convenience interface that has side-effects, while this other variant would provide a side-effectful interface as its primary interface

persistent LRU cache (request for input)

cts to receive a ref, such that you can now do: (let [val (dosync (lru-get! c key))] ...) Instead of every potential caller having to do mostly the same thing anyway. What do you think? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups &qu

Re: Clojure 1.2 Beta 1

Hugely appreciated! -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your firs

Re: Building mixed clojure and java code

entical to leiningen's. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your

Re: ANN: Aleph, an asynchronous web server

s of other services, doing non-trivial control flow etc) in event-based form? Any comments on how it scales, in terms of development costs, as the size and complexity of the system grows? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Cl

Re: ANN: Aleph, an asynchronous web server

f an implementation where the underlying concurrency abstraction is in fact really efficient (in terms of stack sizes and in terms of switching overhead). In other words, the day where having a few hundred thousand concurrents connections does *not* imply that you must write your entire application

Re: Idiomatic Clojure namespace names

o keep it short *while* also meaningful, structured and non-clashing. +1 for clojure :) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from

Re: auto-indent in Counterclockwise

e I've used CCW a bit, I haven't used it enough to have a good feel for it. So my input above comes mostly from a general perspective. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email

Re: Link to API document in the cheat sheet

enient for newbies. While I don't disagree that links would be useful, FYI you can usually just do: (doc X) The exception seems to be special forms which give references to the web site. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups &quo

Re: Benchmarking clojure code

ations anyway, Oops, sorry. I started writing something and meant to discard it, but accidentally hit send... -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com No

Re: Benchmarking clojure code

WIth regards to benchmarking that accurately discounts loop overhead; it seems to me that even if you apply elaborate logic, if the thing you're benchmarking is so small that looping overhead becomes significant, you risk making the benchmark subject to subtle variations anyway, -- /

Re: Benchmarking clojure code

not meant for really serious benchmarking, but I think it would be a good thing to have in cases where one might now otherwise use (time ..). -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send emai

Re: Clojure 1.2: Unicode string length bug?

> I'm on Snow Leopard. I think there's something wrong with Terminal So my guess is that for some reason the terminal is not using the same encoding as whatever is expected by Java (presumably Java looks at LANG and friends). -- / Peter Schuller -- You received this message be

Re: Clojure 1.2: Unicode string length bug?

tive system encoding being, say, shift_JIS or something which is then interpreted as, say, UTF-8 and luckily/unluckily not failing, instead producing a valid unicode string of length 27. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure&qu

Re: Clojure's n00b attraction problem

;s a whole other matter. I can see the IDE issues, but presumably the python/ruby situation is not very good there unless you're heavily into cygwin or something. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To

Re: slow raw io

> I can register another account (no problem), but what implications are > there on the fact that I wrote 'scode' on the contributor agreement I > mail:ed Rich? I just registered "peterschuller". -- / Peter Schuller -- You received this message because you are su

Re: slow raw io

, but what implications are there on the fact that I wrote 'scode' on the contributor agreement I mail:ed Rich? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@google

Re: How does contains? work?

g PersistentList, it seems contains() always returns false - which makes sense if you consider that lists are not functions of indexes (while vectors and java arrays are). -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" gr

Re: slow raw io

be thread-safe or not, but in any case I think it is good default behavior to always strive to do I/O chunk-wise, regardless of whether the expectation is that the underlying stream is fast (for some definition of fast). -- / Peter Schuller -- You received this message because you are subscribed

Re: slow raw io

28: 2.92 seconds 1024: 2.88 seconds 4096: 3.12 seconds -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - p

Re: Enhanced Primitive Support

rds, you should be able to run: ant ci-build And that should install (although it does so very silently) clojure into your (user) local maven repository: ls -ltr ~/.m2/repository/org/clojure/clojure/1.2.0-master-SNAPSHOT -- / Peter Schuller -- You received this message because you are subs

Re: Miscellaneous noob questions

m not sure whether it will help, but this part of "Practical Common Lisp" may be useful even though the book is about Common Lisp: http://www.gigamonkeys.com/book/syntax-and-semantics.html -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "

Re: Why does clojure-http stores cookies in a ref instead of an atom

realize I totally misread it... *atom*, not var... Please ignore my response. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new member

Re: Why does clojure-http stores cookies in a ref instead of an atom

bly HTTP is expensive enough anyway that eliminating the overhead associated with a ref can be considered an irrelevant overhead. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to cloj

Re: Quick question

I might be missing something about the intent. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be pati

Re: Quick question

> Does anybody know how I can produce a sorted-set from a list without > overflowing the stack on a list of up to 20 items? I'm thinking I must be misunderstanding the question, but (apply sorted-set lst)? -- / Peter Schuller -- You received this message because you are subscr

Re: java -server

haps higher memory usage. (Personally I've never been in a situation where I wanted the client VM, in spite of the supposed recommentation for GUI:s... I never got that. I prefer just running with -server and perhaps turning on CMS/G1. Maybe if I were severely memory constrained...) -- /

Re: question about agent implementation

t;non-empty" can be atomically detected by enqueue(), allowing it to determine whether or not it was responsible for such a state transition, in which case it schedules the action for execution. -- / Peter Schuller -- You received this message because you are subscribed to the Google Grou

Re: question about agent implementation

tion with simple CAS loops to great effect.) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please

Re: question about agent implementation

> Unless I am misunderstanding the context in which the code runs, I Which I was. Please ignore my previous post (sorry, think before I post... think before I post...) and consider me joined in the OP's question. -- / Peter Schuller -- You received this message because you are subsc

Re: question about agent implementation

d nothing queued. doRun() itself keeps itself running until it manages to empty the queue, at which point a future enqueue() will once again re-start execution. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to

Re: promoting contrib.string to clojure, feedback requested

> Personally, I like the lstrip/strip/rstrip, but that's just because > I'm used to them. strip is fine too IMO; I'm neutral between *strip and *trim. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" gro

Re: promoting contrib.string to clojure, feedback requested

ng makes it nice and tidy. While I recognize the perl (or whatever the original is) precedent from chomp/chop, there is precedent for trim/left trim/right trim too. What *would* one call trim/ltrim to make them consistent with chomp? -- / Peter Schuller -- You received this message because you

Re: Actors not good for concurrency model

eed, overall, with the originally posted article. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be p

Re: Actors not good for concurrency model

state in an erlang actor. The claim is rather that the intended fundamental model implemented by an actor is not one of shared mutable state. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send emai

Re: Actors not good for concurrency model

s not mean that you cannot use them to build something on top that *is* susceptible to deadlock/races. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that

Re: Actors not good for concurrency model

ang, and that there is no other means to avoid deadlock, meaning that while you will not deadlock in the message passing system you can cause memory exhaustion. Disclaimer: While I've played with erlang I'm not really that into it, please correct me someone if I've misrepresented any

Re: Why is JLine better than just command-line?

;ctrl-p" gives me the line I just wrote, etc. For me, being used to primarily sitting at the zsh command line,I would not be able to use the plain REPL without it or I'd go nuts ;) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups

Re: How do I run a script? This has me stumped.

said file contain actual data not valid clojure, or was it just an empty file? If the latter, no output is expected, as you point out. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to

Re: How do I run a script? This has me stumped.

;(println "test")' > test.clj % java -cp /usr/local/share/java/classes/clojure.jar clojure.main test.clj test -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clo

Re: How do I run a script? This has me stumped.

346) at clojure.lang.RestFn.invoke(RestFn.java:413) at clojure.lang.Var.invoke(Var.java:359) at clojure.lang.AFn.applyToHelper(AFn.java:173) at clojure.lang.Var.applyTo(Var.java:476) at clojure.main.main(main.java:37) -- / Peter Schuller -- You received this m

Re: code review request: clojure.java.io

s API, but I failed to confirm it. In that case, I suggest putting a huge warning in the documentation at least, as to the potential destructiveness of the operation. (Ant's trick with canonical names feels shaky in the context of something as general-purpose as delete-file) -- / Peter Sc

Re: code review request: clojure.java.io

> i.e. I agree with you, but am also against allowing this behaviour as > an option, unless others feel it's a good option to have. I can definitely buy that. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" g

Re: code review request: clojure.java.io

. The simplest "fix" (assuming everyone agrees it's a problem) is to simply change it not to, but I suggested the option to allow for both - but the default should presumably be to *not* follow symlinks. -- / Peter Schuller -- You received this message because you are subscribed

Re: code review request: clojure.java.io

e for inclusion I'd be interested in having a stab at it (it's a nicely bite-sized opportunity to write some clojure). -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clo

Re: Cyclical refs fail on Clojure 1.2?

in the REPL in both 1.1 and 1.2 because of the after-eval printing of the result, but the alters do succeed. In other words, *printing* a, @a, b or @b may give you difficulties due to infinite recursion. But is one of the (dosync ...) blocks really failing? -- / Peter Schuller -- You received t

Re: code review request: clojure.java.io

them)? An admittedly Unix biased expected behavior would be, I believe, to not do that by default, but maybe have an option to do so. (Did you want feedback here or on assembla?) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" gro

Re: another concurrency question: could there be contention for allocation (consing etc.)?

http://research.sun.com/techrep/2000/smli_tr-2000-88.pdf Of course both CMS and G1 will have changed since the original publications of the papers, but they should offer good insight. -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure&

Re: Prepping clojure for packaging (was: Re: Clojure for system administration)

solved the problem of not downloading during build. One should probably look into doing something similar for other packaging systems then. Guess I need to bite the bullet and learn Maven ;) -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "

Re: Prepping clojure for packaging (was: Re: Clojure for system administration)

t then what about GPL libraries and similar license hassles? Actually, how is this dealt with in the Maven community? -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegrou

Re: Prepping clojure for packaging (was: Re: Clojure for system administration)

erface with the infrastructure of the language. And any random blackbox doesn't cut it; certain demands are imposed on the blackbox in order for it to play nice with the packaging infrastructure. At this time I haven't thought this through enough in the case of Clojure to offer a prac

Prepping clojure for packaging (was: Re: Clojure for system administration)

ser experience once package maintainers start picking this up, just like the case is with Python and Ruby. I'd be interested in looking into getting some kind of draft implementation of this, if people think it's a good idea (though I can't make time commitments - busy busy busy). --

Re: Exception handling functional style

nse for that particular API (such as read-line). -- / Peter Schuller -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please

Re: Question about Responsiveness of Garbage Collection

ay to do it or anything. The -XX:+DisableExplicitGC is because some software authors try to be "smart" and insert System.gc() calls at "appropriate" points. They tend to fail, so if you select a GC that actually does handle your case with minimal pauses you also want to disable