Displaying 20 results from an estimated 6000 matches similar to: "[LLVMdev] Sources on optimization and debugging"
2011 Sep 13
4
[LLVMdev] Strategy for leveraging llvm optimizations in vm
Hi --
I'm still very much a newbie with llvm, but am looking (hopefully) to use it to compile into native intel code a set of source that is a combination of byte codes for my own custom vm and intel code that has been coded in assembly language directly.
In an earlier exchange, I already discovered that llvm does not do any optimizations on intel assembly language code. This would be an
2011 Oct 06
4
[LLVMdev] LLVM IR is a compiler IR
Hi Folks --
Let me go ahead and pose a question similar to the one Joachim poses below. I too am trying to evaluate whether LLVM will be of use to me in building a compiler and garbage collection mechanism for a byte code vm that I have built. Although there are multiple types of code that can be created with this system, all of them eventually translate to execution of one or more of these
2011 Oct 06
0
[LLVMdev] LLVM IR is a compiler IR
Michael Clagett <mclagett at hotmail.com> writes:
> There's about 32 core op codes that constitute the basic instruction
> set and I can envision mapping each of these to some sequence of LLVM
> IR. There's also a whole lot more "extended opcodes" that are
> executed by the same core instruction execution loop but which are
> coded using the built-in Intel
2011 Sep 13
0
[LLVMdev] Strategy for leveraging llvm optimizations in vm
If you x86 assembly is sufficiently simple, I don't see any reason why
you couldn't programmatically raise it back up to LLVM IR. People
have tried this in the past (qemu, I think? I can't remember), and it
usually results in some considerable slowdowns. I'd imagine that if
your asm is sufficiently restricted, such as not needing to worry
about arithmetic flags, the x87 FPU
2010 Dec 02
1
[LLVMdev] Is anyone working on a Windows VmKit port?
Curious as to whether any work is in progress on this? Thanks.
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2011 Oct 06
0
[LLVMdev] FW: LLVM IR is a compiler IR
Sorry for the noise, but this is the message I meant to send to the list rather than replying to David directly. Unfortunately, I just sent his message to me before.
From: mclagett at hotmail.com
To: greened at obbligato.org
Subject: RE: [LLVMdev] LLVM IR is a compiler IR
Date: Thu, 6 Oct 2011 19:44:11 +0000
Thanks for your prompt reply. My answers are below at the end of your message.
2011 Sep 02
1
[LLVMdev] Best way to use LLVM with byte code vm
Hi --
I'm wondering if some of you old hands might offer me some guidance. I've been working for some time with a virtual machine platform that is based loosely on the instruction set of a Forth hardware processor that Charles Moore designed sometime back. He used what he called a "MISC" or "Minimal Instruction Set Computer" and the original instruction set I was
2011 Sep 13
0
[LLVMdev] Strategy for leveraging llvm optimizations in vm
On 9/13/11 9:22 AM, Michael Clagett wrote:
> Oooohhh! That's interesting. Does the optimizer just work around
> these inline fragments? Is there documentation for this facility?
CC'ing the mailing list.
The inline assembly feature is described in the LLVM Language Reference
Manual (http://llvm.org/docs/LangRef.html). I'm not really familiar
with what the LLVM optimizers
2015 Jun 09
6
newbie question on installation over existing Linux
On 6/8/2015 5:08 PM, g wrote:
> ie, partition for boot, partition for swap, partition for /, partition
> home, partition for usr, partition for var, partition for home2,
> partition for what ever.
that model is not generally recommended anymore, at least not putting
/usr on its own partition, there's just too many issues with that
nowdays. I don't like putting /var in its
2006 Jan 18
2
Help with plot.svm from e1071
Hi.
I'm trying to plot a pair of intertwined spirals and an svm that
separates them. I'm having some trouble. Here's what I tried.
> library(mlbench)
> library(e1071)
Loading required package: class
> raw <- mlbench.spirals(200,2)
> spiral <- data.frame(class=as.factor(raw$classes), x=raw$x[,1], y=raw$x[,2])
> m <- svm(class~., data=spiral)
> plot(m,
2003 May 20
4
How many X100P's in a system..
I know the recommendation it to not run more than 2 T/E100P's in a system but what about X100P's..
Usually there are 5 PCI slots in a system, has anyone tried 5 x X100P's in a system?
Later..
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2009 Jan 02
1
FreeBSD 7.1 svn186551
Hi All!
I have the question, why reverted the ICH10 support from 7.1?
This is the svn commit:
http://svnweb.freebsd.org/viewvc/base/releng/?pathrev=186551
What is the PR number of the base of this commit or what is the
problem description?
I have a motherboard with ich10r with 3 sata2 disc (hitachi) + 1 sata
dvd-rw (samsung), without any problem.
Sorry for bad spelling or english
2018 Aug 29
6
gencache.tdb size and cache flush
Hi all,
I have a midsize AD domain with some 50k users but only 100 workstations
joined.
Sometimes I find server CPU throttling at 100%. In order to let it drop
and have smooth performance I delete cache:
systemctl stop samba
net cache flush
systemctl start samba
First of all, is it needed a samba stop to flush the cache?
Even if cache flush does the job to restore performance, I am clueless
2010 Jul 14
0
[LLVMdev] Debugging docs wrong?
On Jul 14, 2010, at 1:51 AM, Renato Golin wrote:
> On 13 July 2010 17:54, Devang Patel <devang.patel at gmail.com> wrote:
>> Yes. Thanks for catching this.
>> Fixed r108246.
>
> Most welcome. ;)
>
> Btw, the 2.6 debug information (referred from the blog) doesn't warn
> users that it's deprecated, nor it links to the new info (in an
> obvious
2018 Sep 04
3
authentication performance with 4.7.6 -> 4.7.8 upgrade (was: Re: gencache.tdb size and cache flush)
On Wed, 2018-08-29 at 15:36 +0200, Peter Eriksson via samba wrote:
> For what it’s worth you are not alone in seeing similar problems with Samba and gencache.
>
> Our site has some 110K users (university with staff & students (including former ones), and currently around 2000 active (SMB) clients connecting to 5 different Samba servers (around 400-500 clients per server). When we
2010 Jul 14
2
[LLVMdev] Debugging docs wrong?
On 13 July 2010 17:54, Devang Patel <devang.patel at gmail.com> wrote:
> Yes. Thanks for catching this.
> Fixed r108246.
Most welcome. ;)
Btw, the 2.6 debug information (referred from the blog) doesn't warn
users that it's deprecated, nor it links to the new info (in an
obvious manner, at least), that is completely different. That happens
with the release notes that
2004 Jan 21
2
how about auth users without a password?
Hi, from a generally pleased new rsync user.
I have setup a number of services to be accessible via SSH.
For most of them, it has been possible to arrange that clients
can use a key agent and ssh's level 2 protocol to gain access
without the need of entering passwords more than once, at
the start of a session (assuming their keys are not stored in
the clear).
Most of these services can be
2009 Jun 16
2
YCbCr <-> RGB conversion question
Hi,
I coded some routines for YCbCr <-> RGB conversion, both using
floating point numbers and using integer arithmetics, code is
attached.
Let's say I want to convert from RGB to YCbCr and back. First the
integer arithmetics:
In [1]: from colors import *
In [2]: a = [255, 0, 255]
In [3]: RGB2YCbCr(a)
Out[3]: (107, 202, 222)
In [4]: YCbCr2RGB(RGB2YCbCr(a))
Out[4]: array([255, 1,
2015 Jul 18
4
[LLVMdev] Any objections to turning on -Wunused-parameter? (and any other -Wunused-* that are off?)
LLVM and Clang both have lots of objects that are passed through many
different API boundaries. Things like AliasAnalysis in LLVM or Sema in
Clang get threaded all over the place.
Over times, refactoring can often cause the parameters (or local variables,
or member variables, etc) to become dead. If we notice this, we can often
un-thread the interface through our APIs, sometimes even reducing
2011 Apr 17
1
Description of how CELT packs into Ogg?
Is there are description somewhere of how CELT packs into the .oga file?
Trying to reverse engineer it from the intertwined celtenc code is
suboptimal.
-a