On Apr 28, 2011, at 4:50 PM, Charles Oliver Nutter wrote:
> On Thu, Apr 28, 2011 at 9:17 AM, Christian Thalinger
> wrote:
>> I have now a patch that makes the command line switch tweaking superfluous
>> and the default performance looks pretty good (see below, 32-bit x86).
>
> That's excellent!
Le 27 avr. 2011 à 22:01, Charles Oliver Nutter a écrit :
> On Wed, Apr 27, 2011 at 2:54 PM, Rémi Forax wrote:
>> Yes, 100% agree.
>> Coroutine can also be used to implement generators in Java,
>> introducing yield in the release that introduce lambda make a lot of
>> sense for me.
>
> Yeah, th
On Apr 28, 2011, at 9:58 PM, Charles Oliver Nutter wrote:
> I'm trying to figure out why polymorphic dispatch is incredibly slow
> in JRuby + indy. Take this benchmark, for example:
>
> class A; def foo; end; end
> class B; def foo; end; end
>
> a = A.new
> b = B.new
>
> 5.times { puts Benchmark
Am 2011-04-28 15:00, schrieb Mark Roos:
Of course I would love to see the low level infrastructure in jdk7
binaries.
Well, that would be cool, but I think the scope for JDK7 is very much
fixed by now, and it's a much too short timeframe anyway...
My thought was to use coroutines to emulate Smal
Changeset: 3a27124ba8fa
Author:jrose
Date: 2011-04-29 03:59 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/hotspot/rev/3a27124ba8fa
meth-conv: recursive MHs
! meth-conv-6939861.patch
! series
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Changeset: 931df9b18ac1
Author:jrose
Date: 2011-04-29 04:00 -0700
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/931df9b18ac1
doc: apply more JSR 292 comments
! meth-doc-7014005.patch
Changeset: 2471d29f121b
Author:jrose
Date: 2011-04-29 04:01 -0700
URL: http://h
On Apr 28, 2011, at 3:19 PM, Charles Oliver Nutter wrote:
> On Thu, Apr 28, 2011 at 5:16 AM, Christian Thalinger
> wrote:
>> I took a look at it. I used 64-bit x86 since the code is a bit smaller than
>> with 32-bit.
>>
>> The code is almost identical but three things popped into my eye (the ou
ricochet rulez ?
Rémi
On 04/29/2011 01:01 PM, john.r.r...@oracle.com wrote:
> Changeset: 931df9b18ac1
> Author:jrose
> Date: 2011-04-29 04:00 -0700
> URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/931df9b18ac1
>
> doc: apply more JSR 292 comments
>
> ! meth-doc-7014005.patch
>
On 04/29/2011 01:09 PM, Christian Thalinger wrote:
> On Apr 28, 2011, at 3:19 PM, Charles Oliver Nutter wrote:
>> On Thu, Apr 28, 2011 at 5:16 AM, Christian Thalinger
>> wrote:
>>> I took a look at it. I used 64-bit x86 since the code is a bit smaller
>>> than with 32-bit.
>>>
>>> The code is a
On 04/28/2011 09:58 PM, Charles Oliver Nutter wrote:
> I'm trying to figure out why polymorphic dispatch is incredibly slow
> in JRuby + indy. Take this benchmark, for example:
>
> class A; def foo; end; end
> class B; def foo; end; end
>
> a = A.new
> b = B.new
>
> 5.times { puts Benchmark.measure
I've uploaded a new build and all the jdk/test/java/lang/invoke test pass:
http://www.concord.org/~sbannasch/mlvm/java-1.7.0-internal-mlvm-2011_04_29.tar.gz
$ jtreg -XX:+UnlockExperimentalVMOptions -XX:+EnableInvokeDynamic
-jdk:build/bsd-amd64/j2sdk-image -v:summary
jdk/test/java/lang/invoke/
On 04/28/2011 08:28 PM, Charles Oliver Nutter wrote:
[...]
> * Fixnum overflow checks in + and - operations
>> Do you specialize the overflow check depending on the callsite ?
>> for fib(n - 1), you just have to check if n is different from
>> Integer.MIN_INT,
>> for fib(n - 2), if n is<= to
Changeset: 76c1e87d8341
Author:Lukas Stadler
Date: 2011-04-29 16:44 +0200
URL: http://hg.openjdk.java.net/mlvm/mlvm/hotspot/rev/76c1e87d8341
meth: small fix, distinct arg names
! meth-conv-6939861.patch
Changeset: d3a3a7977609
Author:Lukas Stadler
Date: 2011-04-29 18:11
Changeset: abe7e564b727
Author:Lukas Stadler
Date: 2011-04-29 18:22 +0200
URL: http://hg.openjdk.java.net/mlvm/mlvm/jdk/rev/abe7e564b727
coro: rebase and small fix to series file
! coro.patch
! series
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I'm now getting this error building:
build-bootstrap-javac:
[mkdir] Created dir:
/Users/stephen/dev/java/src/mlvm/sources/build/bsd-amd64/langtools/build/bootstrap/gensrc
[mkdir] Created dir:
/Users/stephen/dev/java/src/mlvm/sources/build/bsd-amd64/langtools/build/bootstrap/classes
[
Hi,
Given that creating GWTs are expensive, is it a really bad idea to
create them and bind them on a cache miss then? My current logic for
call sites look something like this:
invoke call site
if fallback, check if current morphism is < 10.
If so, create a new GWT with the
I think my strategy is going to be something like this:
* Bind first method encountered straight through with a new GWT
* Upon encountering nth new method, rebuild GWT chain to check first,
second, nth PIC-style
* For some N encountered methods, failover to a simple IC
Some variation of these (pr
I have seen a stack map issue with ASM 4 as well. In my case it was dead
( unreachable ) code which had
a return instruction in it. Seemed to confuse the next stack map
computation. I am allowing ASM 4 to compute
the maps on its own.
I replaced it (the return) with no ops and the problem went
On Apr 29, 2011, at 6:19 AM, Rémi Forax wrote:
> ricochet rulez ?
>
> Rémi
Haz ricochet.
Here are some comments on this stuff.
Curry's original BCKW system of combinators
(http://en.wikipedia.org/wiki/B,C,K,W_system) is similar to the MH api.
B(f,g) = λ x . f(g(x)) // MHs.filterArguments(f
Rémi and I confirmed that it is in fact dead code (JRuby's fault) which is
causing a problem for ASM 4 (ASM's fault). He's looking into a fix, and I'll
try to eliminate the dead code.
Hopefully it can be fixed in ASM soon, since the code in question is being
generated by a particularly gnarly p
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