.
Pavel Afremov
On 11/17/06, *Geir Magnusson Jr.* [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
Not surprising :-) The last big stack relatad checkin in 2018.
Its comment
notes say that Gregory actually saw the failure of StackTest
that it was an external exclude
list :)
But I guess that works. How do we exclude for more than 1 platform?
It's impossible, as I understand.
Pavel Afremov
geir
Rana Dasgupta wrote:
Hi,
Sadly, I still run or debug any of this yet. But my suggestion and
request would be that we commit
Hi Alex,
This is good, thanks. Please see below...
On 11/15/06, Alex Astapchuk [EMAIL PROTECTED] wrote:
Hi all,
Among other things listed on the JIT Dev tasks, there is a need for
calling convention (CC) fix-up for IA-32 [1].
Current problems are:
1. The calling convention(s) used are
Not surprising :-) The last big stack relatad checkin in 2018. Its comment
notes say that Gregory actually saw the failure of StackTest and the new
FinalizeStackTest...
On 11/16/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
First test that fails is the most cherished and beloved StackTest,
Thanks for the clarifications Alex.
On 11/16/06, Alex Astapchuk [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
So does this mean one specific convention, fastcall, for C helpers and
a
second custom DRLVM convention for managed code?
Right.
I'm going to implement both - the IA-32 fastcall
Sadly I am sans a 64 bit Linux box at least temporarily. Sounds hard to
believe, I know...
On 11/16/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
Not surprising :-) The last big stack relatad checkin in 2018. Its
comment
notes say that Gregory actually saw
On 11/13/06, Pavel Afremov [EMAIL PROTECTED] wrote:
Hello
I think that Stack test should print pass if no stack overflow error is
happened.
Test should check processing of this error but not existing of it.
I think that this makes sense. StackTest should be intended to detect
correct
reports/jitrino.jet/html/index.html, there are no errors!
On 11/15/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
I think that a problem with the junit tests is that some failures spit
out
to the console, but show up in the test run results as passed. I find
this
very
On 11/14/06, Robin Garner [EMAIL PROTECTED] wrote:
Whether this helps performance depends on the cache policy of the
multiprocessor. I'm not sufficiently versed in cache architectures to
say, but I would expect that machines with sufficiently weak memory
models will make this cheap, those
cores info for
multicore systems and the NUMA api's on Linux are a different bunch
altogether.
Thanks,
Rana
On 11/1/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
Very informative! Thanks, Rana.
-xiaofeng
On 11/2/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
On Windows, there is a bunch of bugs
Great. Thanks Weldon. Does this mean that it is to be verified on Windows?
On 11/8/06, Weldon Washburn [EMAIL PROTECTED] wrote:
1558 has been committed. It took two commits since I forgot to svn add
4
files. All in all, one hundred and twenty one files were committed.
Following the
On 11/9/06, Gregory Shimansky [EMAIL PROTECTED] wrote:
Actually it is more than that. In debug mode TRACE statements are
compiled and therefore produce executable code. There may also be some
bugs in compiler generating code in different modes (although this
usually happens for release).
I
Identifying an end to end alogirithm is of course necessary, and the
discussions on the other thread are great. But what were we voting on here?
My understanding was that we were voting on the approach of using:
1. vtable objects( Aleksey )
2. per heap space/generation boolean marker on the
I can understand that the contributor may not have access to multiple
platforms, but surely he can test using both debug and release builds :-)
What do we gain by asking the contributor to test less?
Rana
On 11/9/06, Pavel Ozhdikhin [EMAIL PROTECTED] wrote:
+1 for debug testing before
happen one page before protected page on the
stack.
It's it.
I ran all tests, and everything was OK. But strange misprint was fount in
the new test.
So I attach new fixed patch.
Pavel Afremov.
On 11/8/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
Though I tried several times, I could not repro
On 11/7/06, Weldon Washburn [EMAIL PROTECTED] wrote:
All,
It looks like the debate on class unloading has concluded.
Let's vote on implementing Robin's proposal.
+1
Weldon
PS -- When class unloading gets implemented and committed is a seperate
issue.
+1 I think it's the best proposal
+1
This makes more sense than putting a sudden unannounced stop to new
features. Possibly Weldon means on a case by case basis after risk
assessment. However, announced stability periods at the end of milestones
is a good practice. For example, since we have been focussing on development
for a
It's worth a lot, since you have implemented this in SableVM yourself.
Thanks.
On 11/7/06, Etienne Gagnon [EMAIL PROTECTED] wrote:
For what it's worth, I'll add my humble +1.
Etienne
Xiao-Feng Li wrote:
Agreed, so plus me.
Thanks,
xiaofeng
On 11/8/06, Rana Dasgupta [EMAIL PROTECTED
Though I tried several times, I could not repro 2070 or Alexey's specific
problems. The test attached to 2018 repros, and that I think is enough.
Pavel,
1. The patch looks good, but I could not apply and try it since my Linux
box is down.
2. Did you run all tests ( smoke, cuint, kernel, and
status of the problem?
With best regards,
Alexei Fedotov,
Intel Java XML Engineering
-Original Message-
From: Rana Dasgupta [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 18, 2006 4:27 AM
To: harmony-dev@incubator.apache.org
Subject: Re: [drlvm] [testing] Excluding commit tests until
Jet is a startup fast compilation path, not a seperate pluggable jit. So,
while modularity and seperation are important requirements, they may not be
needed here.
Also, Mikhail and Alex are the best people to decide on this.They are
literally the two people who know this code best :-)
On 11/5/06, Weldon Washburn [EMAIL PROTECTED] wrote:
On 11/5/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
first, can we also use this test for gcv4.1?
Yes. The test is a Java test. The reason I placed it in gc_gen is that it is
intended to stress allocation fastpath and corresponding
Yes, I use a gcc version 4.0.2 on RHEL. I have no problems building +
running it now
I can confirm that gcc 4.1.1 compiled this patch without any problems.
As I've written, patchlevel shouldn't matter here, and if gcc 4.1.0
worked, 4.1.1 should work as well (with very rare exceptions).
Since we have accepted GCV4.1 as the default and GCV5 as the development GC
based on several list discussions, I think that we may be OK with announcing
that GCv4 is deprecated, and maybe taken out of the active tree by end of
2006?
Patches that are still coming in that only work with GCV4,
RI behaviour on Linux. Anyway, I will recheck.
Thanks for closing the other two.
On 11/3/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
Hi,
I did not want to start a new thread for this. Could someone please
close
JIRA issues 1109, 1662, 1830? These have been fixed
Yes, I actually think that setting an announced date for taking away
deprecated features is a good idea Mikhail. IMHO, dead code also creates
some risk.
On 11/3/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
On 11/3/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
From that argument, I'm now
/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
On Windows, there is a bunch of bugs.
- On W2003 SP1, Vista, XP-64 GetLogicalProcessorInformation() is the
recommended api. It returns # of cores on AMD and # of logical procs
on
Intel.
- GetSystemInfo() is on XP-32 and Windows Server
not a big
deal.
On 11/2/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
No problem with them being both on the Wiki and the JIRA, I think.
Other than getting out of sync it just makes sense to use the
issue tracking system for... issue tracking :)
geir
On 02 Nov 2006
On 11/2/06, Aleksey Ignatenko [EMAIL PROTECTED] wrote:
Hi, everyone.
I've splitted Harmony-2000 (see details:
http://issues.apache.org/jira/browse/HARMONY-2000) patch with automatic
class unloading implementation into 2 independent parts:
1. cleaning native resources
If the code is not being exercised by day to day tests and maintained, or if
we are not developing it, we can drop it I think. GCV4.1 is in the first
category, and GCV5 the second. GCV4 doesn't fit either. Dropping it doesn't
stop one from pulling it out of an old svn revision for personal use.
Right, it is in the default code path. So it is regularly exercised, tested,
fixed. v5 is the one in development. If gcv4 is neither being fixed, nor
developed why keep it? Sorry for the double negatives :-)
On 11/2/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
I don't grok what you mean
On 11/2/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
Robin, thanks for all the clarifications. Now it seems clear to me and
I am convinced by this proposal. :-)
Yes, this proposal is the simplest and has the least perf impact. Thanks
Robin.
Hi,
I did not want to start a new thread for this. Could someone please close
JIRA issues 1109, 1662, 1830? These have been fixed by recent changes in the
stack and exception handling. In any case, none of them repro. Comments on
teh JIRA.
Thanks,
Rana
On 10/25/06, Volynets, Vera [EMAIL
On Windows, there is a bunch of bugs.
- On W2003 SP1, Vista, XP-64 GetLogicalProcessorInformation() is the
recommended api. It returns # of cores on AMD and # of logical procs on
Intel.
- GetSystemInfo() is on XP-32 and Windows Server. It does not work in
wow mode. I think
Robin,
The basic difference of this with Etienne's method is that the flag is
on the vtable, instead of the CL instance. Do I understand correctly ? The
GC perf impact is therefore reduced because you need to lookup
object-vtable instead of object-class-CLinstancewhen tracing the heap.
The
Mikhail,
Wonderful :-) Yes, we are still missing some hoisting opportunities, I saw
that in VTune( the old scores I ran are also with JET since the jitrino WB
was no yet in svn and I was lazy ). We shoule be able to match RI on
allocation rate, we use Appel's algorithm for the allocation of
I created a basic debugging page for debugging with the VS debugger on
windows.
Mikhail and others, make whatever changes you like :-)
Rana
On 10/24/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
On 24 Oct 2006 22:42:22 +0700, Egor Pasko [EMAIL PROTECTED] wrote:
- Debugging on Windows -
I created an MMTk page off the DRLVM core VM development page and put in
Weldon's list.
On 10/23/06, Gregory Shimansky [EMAIL PROTECTED] wrote:
Weldon, can you make a subpage to Rana's list and link it to the MMTK
integration item?
On 10/31/06, Etienne Gagnon [EMAIL PROTECTED] wrote:
Yet:
1- You do need pinning, so you rule out some of the simplest GCs (e.g.
simple, non-generational copying without pinning.) [Apparently, for
some very large heaps, simple copying a can be quite difficult to beat,
efficiency wise, if you
The point is not that it is unimportant because it is an optimization. It is
1) it seems something that is be good to have, but is not urgent
immediately 2) that given the nature of our best solution ( java tables etc.
) is risky, we may not want to experiment with it in the main branch. We
Hi,
Does anyone have an accessible reference to the OOPSLA paper An efficient
parallel heap compaction algorithm by Abuaiadh, Ossia, Petrank,
Silbershtein that is cited as a reference in the paper Xiao Feng points
to below? All my google searches lead to the ACM Portal :-)
Thanks,
Rana
On
Perfect, thanks Mikhail
On 10/30/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
Is it the same?
http://citeseer.ist.psu.edu/630853.html
or
http://www.cs.technion.ac.il/~erez/Papers/parallel-compaction.ps
On 10/30/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
Hi,
Does anyone have an accessible
Etienne,
This is a good design, thanks. Conceptually, reference counting in the VM
is somewhat similar to Aleksey's proposal 1, if I understand correctly. This
design also requires quite a few hand-offs between the VM and GC. In DRLVM,
the problem is that we have quite a few GC's, not all within
Hi Yuri,
Since you invited questions, here are a few from me...
What is the basic profiling mechanism...instrumentation or sampling?
What are the different types of profiles we are capturing ?
How are the profiles currently being persisted?
Is there any existing documentation on this?
Have
Xiao Feng,
I will read the reference to understand what are the compressor
advantages, and how the algorithm is implemented, thanks.
Even when you have 1GB of physical memory, is there not an overhead of page
faults?
Is it an option to compact the heap in parts and/or to increase the number
of
On 10/28/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
On 10/28/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
On 10/27/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
Yes. That's also my opinion. The _design_ of class unloading is the
focus of the discussion.
I think that before doing
Aleksey,
Thanks for the answers, please see inline.
On 10/26/06, Aleksey Ignatenko [EMAIL PROTECTED] wrote:
Rana,
- One example is Eclipse, when you build something with ant. E.g.
building
kernel classes with ant in Eclipse will create separate class loader
every
time developer performs
management
was not really urgent. I know that IIS does this, I am not sure about httpd.
I am not sure about other host environments.
On 10/27/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
Aleksey,
I had a couple of questions.
You state that DRLVM does not implement
Hi,
I ran a simple test that allocates and discards a large number of objects repeatedly on multiple threads. These should all be gen zero objects( none survive ) that are repeatedly collected. So the test is of effective allocation rate( I set heap size for all the gc's to 64M and 256 M ). I
PROTECTED] wrote:
Rana Dasgupta wrote:
My knowledge in this area is limited. But my understanding was that
web
servers and other similar hosts recycled processes periodically as
standard procedure, thereby tearing down all associated resources.
Yes, but that has nothing to do with what would
Aleksey,
I had a couple of questions.
You state that DRLVM does not implement the class unloading optimization,
and this may create memory pressure on some applications that load many
classes. Do we have a real case / example where an application is stuck for
insufficient memory because it
Yes, I thought about this breaking MMTk too. BTW, I don't know if Jikes does
class unloading, but they may get automatic unloading almost for free since
it is all java?
I am not very knowledgeable regarding other methods, but I think you can
always count manually to figure out when the loader
On 10/25/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
any comments? any at all?
Geir,
Sorry about my confusion. Is this synonymous with or a part of the
process of applying to Apache to graduate us from incubator status?
Thanks,
Rana
I see, thanks. The TLP proposal looks good to me.
Rana
On 10/25/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Rana Dasgupta wrote:
On 10/25/06, *Geir Magnusson Jr.* [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
any comments? any at all?
Geir,
Sorry about
The ideal way would be for acceptance tests like build test to always pass
and to catch and roll back the patch that breaks this invariant, rather than
to disable the tests. But I agree with Vera, it is important to keep a
running set up as acceptance tests, so disabling the well known failures
About 1916,
This is a Widows debugheap overrun issue in the awt code( don't know when
this was introduced ). The debug heap marks all allocations with a FD FD FD
FD before and after the allocation. During free() it checks to see is that
guardarea has been trampled on. If so, it complains with a
On 20 Oct 2006 19:15:46 +0700, Egor Pasko [EMAIL PROTECTED] wrote:
To sum up my thoughts:
* debugging_VM_and_JIT
+ is outdated
+ covers both linux and windows debugging tips intermixed
+ has instructions for JET tracing (quite valid)
* Let's make make it 2 separate docs: Linux debugging and
I thought that we are doing IPF first with the interpreter?
Rana
Hi Weldon,
I am sorry to to see that you may be still having problems with the
VS.Net debugger. I use it all the time, and everything( BP's, watch, memory
and thread windows ) works as expected. If you haven't done so alread, could
you please give this a shot?
devenv /debugexe
+1
On 10/20/06, Gregory Shimansky [EMAIL PROTECTED] wrote:
But you are right, the dependencies graph of all VM internal headers is
a huge
tangle which should be untangled somehow. Hopefully the Class.h cleanup
which
Pavel is doing now will make a first step in the right direction.
Is this
On 10/17/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
On 10/18/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
Pavel's looks like more flexible, but I have a question with the
special interface approach: is it possible that sometimes we want to
call a library native method in fast way? If
Alex,
Thanks for the information about Intel64 conventions for long mode. I
spoke losely and inaccurately below. I am the collector of the
development items, not the originator of all items :-) It may be a good
idea to write a short document describing the calling conventions we support
on
I added the VM dev tasks to
http://wiki.apache.org/harmony/CoreVmDevelopmentItems
off Gregory's currently empty page. Please change as necessary.
Rana
On 18 Oct 2006 20:11:14 +0700, Egor Pasko [EMAIL PROTECTED] wrote:
now this is done:
Gregory had already created an entry on the front page ( see his comments
above ).
On 19 Oct 2006 10:55:43 +0700, Egor Pasko [EMAIL PROTECTED] wrote:
On the 0x207 day of Apache Harmony Rana Dasgupta wrote:
I added the VM dev tasks to
http://wiki.apache.org/harmony/CoreVmDevelopmentItems
Hi Gregory,
It is a good idea to put up a live list, thanks. Here are some
suggestions on the contents for development items in the VM/JIT. A few may
be almost done. We can fine tune...and add other work items as well
JIT Items
==
- GC related: WB support in Jitrino.opt
Implement
Mikhail,
Makes sense. BTW, we need to change the IA-64 to IPF( IA-64 is not an
external term ) on any posted list. IA32 to x86-32 bit and Intel 64 to
x86-64 bit. Sorry for the typo's.
Rana
On 10/17/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Mikhail Fursov wrote:
Rana,
the JIT
Mikhail,
All this looks reasonable to me. At least to go ahead. Regarding 2A,
could the jit cache this information for re-use?
Alternatively, the JIT can do all this at startup...by going thru the
contract class of fastpath java methods and querying the component manager
for the native
discussed on the JIRA. The Stacktest and all other stack related tests now
pass.
I'll submit the patch against 1786 in the next few hours after running
acceptance tests.
Rana
On 10/16/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
On 10/16/06, Gregory Shimansky [EMAIL PROTECTED] wrote
On 10/16/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
We're a volunteer project, so supported is based on interest in
community. Lets be clear by writing down a set of platforms that we as
a community commit to support.
I think we can define support as - one or more people in the
On 10/16/06, Gregory Shimansky [EMAIL PROTECTED] wrote:
On Tuesday 17 October 2006 00:01 Geir Magnusson Jr. wrote:
I tried to put some back. StackTest still doesn't work. It's hard to
believe... so I gave up and just kept going :)
I wonder if the test or the implementation are wrong.
On 10/16/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
So since I don't have Win 2003, I gotta just commit and let someone else
test?
Any committer have win 2003?
I think that it may be hard to find a test at this point that fails on
Windows Server 2003, but passes on XP. But perf etc.
Hi,
Is there any known bug related to this issue?
Rana
On 10/15/06, Weldon Washburn [EMAIL PROTECTED] wrote:
After thinking about it a while, how about the following course of
action:
1)
First phase is to modify hysem_wait() and any other hy blocking
functions to test if, in
This is a good document, thanks Svetlana. Even if a lot of custom gc's don't
get written, it helps in understanding the current collecor farmework and
how it plugs into DRLVM.
Rana
On 10/16/06, Konovalova, Svetlana [EMAIL PROTECTED] wrote:
Folks,
I took a close look at Hot to Write GC
My indentation is messed up, but it's too late to correct it..
On 10/12/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
On 10/12/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
3) The problem: Is the signature for gc_alloc method : gc_alloc(int
objSize,
int allocationHandle) is universal for all
On 10/13/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
This is just one more argument for doing IPF porting in a separate
branch,
at least since some point.
I admit that maintaining quality and checking for regressions on new
platforms is a separate big problem but I believe we
Hi,
There is incomplete support for IPF platforms in the DRLVM codebase, as
many may have seen. It would be nice to complete it. There are a couple of
issues on how to start this. IPF specific changes are likely to be quite
significant, including changes in the JIT, garbage collector(s),
I think that over time, we will start seeing IPF specific code files
appearing ... eg., quite a different jit, IPFhelpers.cpp,
IPFexception_filters.cpp, IPFnativestack.cpp, IPFprofiledrivers.cpp etc.
That is my impression of how most IPF ports go. Even in the main codebase
they will virtually
Makes sense, using a standard barrier invocation fastpath. But I assume that
the MMTk WB helper that it will call needs to be inlined too.
Thanks
On 10/10/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
Weldon,
I thought about slightly different approach.
Why not to write fast-path VM helper
On 10/6/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
A major design concept in this revision that was not made very clear
in previous submissions is space. GC is a concept of a full (or
standalone) garbage collector design. One GC can have multiple spaces,
each of which can employ different
On 10/6/06, Pavel Ozhdikhin [EMAIL PROTECTED] wrote:
If we agree on common testing configs we can make sure the Harmony
will be stable on at least this set of configurations. This does not
mean we won't fix problems on other configurations. The goal is to
gain and maintain general stability.
+1
And the JIRA has logging properties as well. On several threads now, email
patches have just caused more confusion, with participants asking if these
are examples or live code.
On 10/4/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
I do not like JIRA too, but sending patches by email is
MIkhail,
Are you going to keep these files ( sln and projects ) updated, since
they are now becoming a part of the main codebase?
Thx,
Rana
On 10/4/06, Mikhail Fursov [EMAIL PROTECTED] wrote:
Geir,
I created this package to have a common place with other MSVC users in
JIRA
and I did
Yes, this makes sense. In that case, my vote would be to apply Atrem's patch
new_queued_cond_var.patch in H-1519. Let's run with this and the new
thread.c( that we have already applied from H-1457 ) for a while. If we
discover no new issues, we can go chat about them on the APR list?
Thanks,
I looked at it( gc.LOS hang ) for a while and my findings are somewhat
similar to Alexey's. The problem occurs for me all the time irrespective of
where the trace statement apprears( ref: Weldon's comment ). On breaking in,
the call stack at hang is:
ntdll.dll!7c90eb94()
ntdll.dll!7c90ea53()
Hi Weldon/Geir,
Looks like we have quite a few Windows failures. Could one of you folks
please add in the the new file:
patches/win/APR/threadproc/win32/thread.c
that is in 1457, but possibly got dropped from the commit?
We also need H-1340 to fix the assert in the fat monitor. H-1519 may
I am not very familiar with this section of the code. But if this is in
general true, and the classlib dependency on the hythread_XXX api's is
small, what Andrey says above makes sense to me. Why not replace them(
monitor enter/exit, TLS access etc. ) with the portability layer macrodefs
from
On 9/19/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
Hi, a new attachment is submitted to GCv5 as an update to JIRA 1428.
(https://issues.apache.org/jira/browse/HARMONY-1428), which is a
mark-compaction GC. This GC is going to be connected with last
submission (the trace-forwarding GC) into a
On 9/20/06, Weldon Washburn [EMAIL PROTECTED] wrote:
On 9/20/06, Xiao-Feng Li [EMAIL PROTECTED] wrote:
On 9/21/06, Rana Dasgupta [EMAIL PROTECTED] wrote:
Very nice and fast Xiao Feng :-) I read through your first
submission
and
had a couple of thoughts on how this could progress
On 15 Sep 2006 11:26:40 +0700, Egor Pasko [EMAIL PROTECTED] wrote:
On the 0x1E4 day of Apache Harmony Mikhail Fursov wrote:
This would be the best solution to test if an optimization works as
expected.
We can create the following framework inside Jitrino compiler to test
individual
Hi Egor,
An optimization is a functionality that can regress like anything else.
The functionality is the perf gain, which is the point of the optimization.
How would any committer confirm that the submitted code does perform the
optimization ...other than the developer's word that it is
Hi Pavel,
Platform specific optimizations can be accomodated in the scheme
described by doing a cpuid check in the test and automatically passing it or
disabling on all other platforms. That shouldn't be too hard.
I understand that some jit optimizations are deeper and more abstract,
but
Weldon,
It may be a little early to guard for architectural impact of large parts
of the VM being written in Java? I don't think that we are quite there yet
or need to consciously design to enable this till we have completed the MMTk
integration and done exhaustive perf work.
In addition to
Does this apply to bug fixes as well? For significant fixes that have an
architectural impact, certainly we need to inform the dev list, specially if
there has been some discussion already. But for more local fixes, is it
enough to add a comment to the issue on JIRA, stating current ownership,
It might be OK to disable the event notification on loopback for these
thread/threadgroup java methods only? Would the misses of notification for
such methods in CompiledMethodLoad be a major issue?
Thanks,
Rana
Thanks Xiao Feng.
Weldon, are you going to put it somewhere like drlvm/trunk/vm/gcv5 if there
are no objections?
Thanks,
Rana
Geir,
Good question. The init_stack_info() is really a misnomer. It is an
initialization needed for the overflow exception handling machinery only.
That does not mean that it could not be initialized in a single location
eg., when the vm thread is attached, but it is a somewhat more local
Yes, could you please mark it, as you see best when you apply your changes?
Thanks.
Rana
On 9/8/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
Ok - sounds good. I assume putting in a TODO in the code reminding
ourselves would be reasonable?
geir
Rana Dasgupta wrote:
Geir,
Good question
Hi Mikhail,
Sorry I left this thread for a while. Are you implementing VMMagic
support in .OPT currently, and prototyping with bump allocation? I am just
trying to understand in what order we are doing this.
Would it be possible to list the fastpath helpers so that the java
interfaces to
On 8/22/06, Geir Magnusson Jr. [EMAIL PROTECTED] wrote:
it also exhibited the same problem on Ubuntu 5 running in Parallels on a
mac.
the tgz can be found here :
http://people.apache.org/~geirm/incubator-harmony-jre-r433739-linux-x86-32-snapshot
.tar.gz
if someone wants to try it on some
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