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digitalmars.D.announce - Visual D 0.3.34 released - powered by a precise garbage collector

reply Rainer Schuetze <r.sagitario gmx.de> writes:
Hi,

after struggling with memory issues for too long, the newest version of 
Visual D enjoys the benefits of a pretty precise garbage collector. This 
isn't the only new feature of this release, here are some more:

* linker error messages can now be decompressed and demangled (thanks to 
Benjamin Thaut for providing the tool)
* optlink is now called directly with file monitoring: this allows 
passing library path and detecting library and source dependencies
* various improvements to the parser and completion
* fixed installation for VS2012

The full changelog can be read here: 
http://www.dsource.org/projects/visuald/wiki/VersionHistory

Visual D is a Visual Studio package providing both project management 
and language services for the D programming language. It works with 
Visual Studio 2005-12 as well as the free Visual Studio Shells.

The Visual D installer can be downloaded from its website at 
http://www.dsource.org/projects/visuald

Rainer
Oct 12 2012
next sibling parent reply "thedeemon" <dlang thedeemon.com> writes:
On Friday, 12 October 2012 at 17:37:09 UTC, Rainer Schuetze wrote:

 after struggling with memory issues for too long, the newest 
 version of Visual D enjoys the benefits of a pretty precise 
 garbage collector.


Great news!
I'm a happy thankful user of VisualD. I really like the fact that 
the new precise GC is being tested on a real world project, and 
that it happens in Windows, not yet another unix-only development.

What are your thoughts on current state of precise_gc2? How 
stable and how fast is it? What are the current plans for it?
Oct 13 2012
parent reply Rainer Schuetze <r.sagitario gmx.de> writes:
On 10/13/2012 10:19 AM, thedeemon wrote:

 On Friday, 12 October 2012 at 17:37:09 UTC, Rainer Schuetze wrote:

 after struggling with memory issues for too long, the newest version
 of Visual D enjoys the benefits of a pretty precise garbage collector.


 Great news!
 I'm a happy thankful user of VisualD. I really like the fact that the
 new precise GC is being tested on a real world project, and that it
 happens in Windows, not yet another unix-only development.

 What are your thoughts on current state of precise_gc2? How stable and
 how fast is it? What are the current plans for it?


I have only done a few benchmarks from the druntime/benchmark folder and 
the dmd test suite, but these are more biased towards lots of 
allocations than collections. For those, the overall performance is 
about 20-30% slower, because there is some more work to done in allocations.

Within Visual D, it seems that collections are quite a bit faster, but 
as the parser and semantic analysis which uses most memory, is delegated 
to another process, you probably won't notice it anyway.

My impression is that the branch on github 
(https://github.com/rainers/druntime/tree/precise_gc2) is pretty stable. 
There are still a number of unprecisely scanned memory areas:

- data and bss segment (Visual D uses a dmd/druntime a patch to 
implement precise scanning for these too, but it does not integrate very 
well and is Windows-specific so far)
- closures
- some structures in associative arrays, as there is no combined 
typeinfo available to be passed to the GC
- "emplaced" objects if memory is allocated with "new void[]"

The GC interface needs to be extended with a function to specify type 
info for an arbitrarily memory range to improve some of the above.
Oct 13 2012
parent Rainer Schuetze <r.sagitario gmx.de> writes:
On 10/13/2012 2:37 PM, Rainer Schuetze wrote:

 My impression is that the branch on github
 (https://github.com/rainers/druntime/tree/precise_gc2) is pretty stable.


I should add that you can expect running into linker problems because 
RTInfo for associative arrays is often not generated by dmd. My current 
workaround is to add "alias AssociativeArray!(Key,Value) _workaround;" 
somewhere if the linker complains about missing symbols for type 
"Value[Key]". The new demangling feature in Visual D is quite helpful 
here ;-)
Oct 13 2012
prev sibling next sibling parent reply "Nicholas Londey" <londey gmail.com> writes:
Chrome is flagging the download as 'This file appears malicious.' 
for me. Have you run into this?

On Friday, 12 October 2012 at 17:37:09 UTC, Rainer Schuetze wrote:

 Hi,

 after struggling with memory issues for too long, the newest 
 version of Visual D enjoys the benefits of a pretty precise 
 garbage collector. This isn't the only new feature of this 
 release, here are some more:

 * linker error messages can now be decompressed and demangled 
 (thanks to Benjamin Thaut for providing the tool)
 * optlink is now called directly with file monitoring: this 
 allows passing library path and detecting library and source 
 dependencies
 * various improvements to the parser and completion
 * fixed installation for VS2012

 The full changelog can be read here: 
 http://www.dsource.org/projects/visuald/wiki/VersionHistory

 Visual D is a Visual Studio package providing both project 
 management and language services for the D programming 
 language. It works with Visual Studio 2005-12 as well as the 
 free Visual Studio Shells.

 The Visual D installer can be downloaded from its website at 
 http://www.dsource.org/projects/visuald

 Rainer
Oct 13 2012
next sibling parent Rainer Schuetze <r.sagitario gmx.de> writes:
On 10/13/2012 10:31 AM, Nicholas Londey wrote:

 Chrome is flagging the download as 'This file appears malicious.' for
 me. Have you run into this?


I have downloaded and installed Chrome, and it does not complain. But 
Windows 8 SmartScreen does, probably because the installer is not 
signed. You can still allow installation by clicking "Details".
Oct 13 2012
prev sibling parent Lubos Pintes <lubos.pintes gmail.com> writes:
Not in Firefox, downloaded yesterday.
Dňa 13. 10. 2012 10:31 Nicholas Londey  wrote / napísal(a):

 Chrome is flagging the download as 'This file appears malicious.' for
 me. Have you run into this?

 On Friday, 12 October 2012 at 17:37:09 UTC, Rainer Schuetze wrote:

 Hi,

 after struggling with memory issues for too long, the newest version
 of Visual D enjoys the benefits of a pretty precise garbage collector.
 This isn't the only new feature of this release, here are some more:

 * linker error messages can now be decompressed and demangled (thanks
 to Benjamin Thaut for providing the tool)
 * optlink is now called directly with file monitoring: this allows
 passing library path and detecting library and source dependencies
 * various improvements to the parser and completion
 * fixed installation for VS2012

 The full changelog can be read here:
 http://www.dsource.org/projects/visuald/wiki/VersionHistory

 Visual D is a Visual Studio package providing both project management
 and language services for the D programming language. It works with
 Visual Studio 2005-12 as well as the free Visual Studio Shells.

 The Visual D installer can be downloaded from its website at
 http://www.dsource.org/projects/visuald

 Rainer
Oct 13 2012
prev sibling parent Walter Bright <newshound2 digitalmars.com> writes:
On 10/12/2012 10:37 AM, Rainer Schuetze wrote:

 The Visual D installer can be downloaded from its website at
 http://www.dsource.org/projects/visuald


On github:

https://github.com/rainers/visuald
Oct 13 2012