DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2008-01-09 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2008-01-09 11:54 ---
Created an attachment (id=21368)
 -- (http://issues.apache.org/bugzilla/attachment.cgi?id=21368action=view)
java.nio changes against Ant 1.7.0, in unified diff format

I have modified the original NIO changes and applied them against Ant 1.7.0.
These changes work with the new Resources framework.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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[EMAIL PROTECTED] changed:

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  Attachment #21368|0   |1
is obsolete||




--- Additional Comments From [EMAIL PROTECTED]  2008-01-09 12:06 ---
Created an attachment (id=21369)
 -- (http://issues.apache.org/bugzilla/attachment.cgi?id=21369action=view)
java.nio changes against Ant 1.7.0, in unified diff format


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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2008-01-09 Thread bugzilla
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[EMAIL PROTECTED] changed:

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  Attachment #21368|java.nio changes against Ant|[faulty] java.nio changes
description|1.7.0, in unified diff  |against Ant 1.7.0, in
   |format  |unified diff format




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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-09-08 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-09-08 17:12 ---
I do not think that we need to make a version
of FileUtils for java 1.3, 1.4, 5, 6, 7 etc. It is far too
big for that. The
only difference that I can see in the patch
is part of the (overlong) copyfile method - the raw
file copy without filtering.
This part could be extracted from FileUtils.copyFile and
it could use a runtime found implemention of the most efficient
RawFileCopy class for this particular JVM.



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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-09-08 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-09-08 18:37 ---
Agreed Peter.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-04-20 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-04-20 07:54 ---
(In reply to comment #13)
 It could be a compile-time-optional part of the runtime, something that is 
 only
 delegated to when the runtime is 1.4+. Which means that we'd need an
 interface/facade to the operations and then an original+nio implementation, 

(pushed here from Antoine on the dev list ...)

I've started looking into this and I can see that we need an interface of the
current FileUtils class (minus static methods) and then a factory to select the
implementation, and 2+ implementations, original/classic (ie what we have right
now), NioFileUtils (such as this code here in this bug report) and
Java6FileUtils (for all the file permission goodies).

I'm not sure how to resolve the problem that *a lot* of the current code
presumes a lot about FileUtils (ie that certain methods are static etc).  Since
we have to maintain bwc, this will probably have to mean that the interface
contains definitions of all instance methods, and the original FileUtils will
have to keep the static methods (as they are public) and any new implementation
will have to delegate to the original for these methods.

Is this a sensible strategy?
Kev

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-04-20 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-04-20 15:32 ---
Can static methods just execute non-static methods on util's singleton?

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-04-20 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-04-20 18:30 ---
(In reply to comment #15)
 Can static methods just execute non-static methods on util's singleton?

Definetely,

We could even use the singleton  / constructor as factory and turn the FileUtils
into a proxy with embedded factory.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-01-12 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-01-12 11:36 ---
It could be a compile-time-optional part of the runtime, something that is only
delegated to when the runtime is 1.4+. Which means that we'd need an
interface/facade to the operations and then an original+nio implementation, the
default behaviour being to use nio on 1.4+, though with a switch to override
that so that the original code can still be tested.

This is a lot of effort; the speedup would have to be tangible. Are the any
measurements, both for local and remote filesystems?

There is some justification for doing such a facade, and it isnt just possible
speedup -the facade could also offer access to the file permissions stuff coming
in Java6.0, letting ant tasks work with permissions properly on the 6.0
platform, as and when it comes out. 

-steve

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-01-11 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 18:52 ---
Created an attachment (id=17385)
 -- (http://issues.apache.org/bugzilla/attachment.cgi?id=17385action=view)
java.nio changes against Ant 1.6.5, in unified diff format

I've used the original modified source files attached to this bug and create a
patch against 1.6.5 from them.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-01-11 Thread bugzilla
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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 18:53 ---
Created an attachment (id=17386)
 -- (http://issues.apache.org/bugzilla/attachment.cgi?id=17386action=view)
lazy init changes against Ant 1.6.5, in unified diff format

I've used the original modified source files attached to this bug and create a
patch against 1.6.5 from them.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-01-11 Thread bugzilla
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[EMAIL PROTECTED] changed:

   What|Removed |Added

  Attachment #17385|java.nio changes against Ant|[faulty] java.nio changes
description|1.6.5, in unified diff  |against Ant 1.6.5, in
   |format  |unified diff format




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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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  Attachment #17385|1   |0
   is patch||
  Attachment #17385|0   |1
is obsolete||




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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 19:21 ---
The second patch is completely irrelevant to Ant HEAD... one might argue the
second patch could be structured into Ant HEAD in more valuable ways as well.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 19:24 ---
(From update of attachment 17385)
Patch fails on copying large files; need to change transfer size in
transferTo() call to a lower value.


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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2006-01-11 Thread bugzilla
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  Attachment #17385|0   |1
   is patch||
  Attachment #17385|1   |0
is obsolete||




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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 19:27 ---
Created an attachment (id=17388)
 -- (http://issues.apache.org/bugzilla/attachment.cgi?id=17388action=view)
java.nio changes against Ant 1.6.5, in unified diff format

I've used the original modified source files attached to this bug and created a

patch against 1.6.5 from them.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 19:29 ---
Can't say I disagree with Matt Benson there; but I just wanted to make sure that
the original submitter's changes were both available in patch format rather than
modified Java code. In all fairness, the lazy init calls patch should not be in
this bug but in a feature request of its own.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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is obsolete||




--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 19:38 ---
Created an attachment (id=17389)
 -- (http://issues.apache.org/bugzilla/attachment.cgi?id=17389action=view)
java.nio changes against Ant 1.6.5, in unified diff format

I've used the original modified source files attached to this bug and created a
patch against 1.6.5 from them.

One last time, to fix transferTo() buffer size.
Apologies for the attachment spam.

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--- Additional Comments From [EMAIL PROTECTED]  2006-01-11 19:47 ---
(In reply to comment #5)
 The second patch is completely irrelevant to Ant HEAD... one might argue the
 second patch could be structured into Ant HEAD in more valuable ways as well.

correction: the second occurrence of second should be first.


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--- Additional Comments From [EMAIL PROTECTED]  2006-01-12 01:53 ---
java.nio are only available as part of Java 1.4+, to accept this into the trunk
would mean a dependency on 1.4+ compiler to build ant - is this ok?  My
understanding was that we should try to preserve bwc within ant (as a tool) and
for building ant itself - is this no longer a concern?

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--- Additional Comments From [EMAIL PROTECTED]  2006-01-12 07:35 ---
(In reply to comment #11)
 java.nio are only available as part of Java 1.4+, to accept this into the 
 trunk
 would mean a dependency on 1.4+ compiler to build ant [...]

Could probably be solved by adding to build.xml#needs.jdk1.4+ something like

filename name=${util.package}/NioFileUtils.java/

meaning if compiled on JDK 1.3 the optimization would be unavailable.

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

2004-07-17 Thread bugzilla
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Performance enhancements using java.nio  lazy calls

[EMAIL PROTECTED] changed:

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Version|1.6.2beta1  |1.6.2

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DO NOT REPLY [Bug 30094] - Performance enhancements using java.nio lazy calls

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http://issues.apache.org/bugzilla/show_bug.cgi?id=30094

Performance enhancements using java.nio  lazy calls





--- Additional Comments From [EMAIL PROTECTED]  2004-07-14 07:17 ---
Created an attachment (id=12110)
Sources and a jar containing the patch

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