Here is the updated patch:
http://jmmc.fr/~bourgesl/share/webrev-8010297.2/
Fixed inconsistencies between FINE / FINER log statements:
- XScrollbarPeer
- XWindowPeer
Laurent
2013/4/2 Anthony Petrov <anthony.pet...@oracle.com
<mailto:anthony.pet...@oracle.com>>
1. Sergey: I believe this is for purposes of better formating the
log output and making it more readable by separating or highlighting
some sections. I don't think this should be changed.
2. Laurent: can you please address this issue and send us a new patch?
--
best regards,
Anthony
On 4/1/2013 16:08, Sergey Bylokhov wrote:
Hi, Anthony
Only two comments:
1 Why we need some special text in the log output like "***" and
"###"
2 XScrollbarPeer.java:
+ if (log.isLoggable(__PlatformLogger.FINEST)) {
+ log.finer("KeyEvent on scrollbar: " + event);
+ }
On 4/1/13 12:20 PM, Anthony Petrov wrote:
Awt, Swing, Net engineers,
Could anyone review the fix please? For your convenience:
Bug: http://bugs.sun.com/view_bug.__do?bug_id=8010297
<http://bugs.sun.com/view_bug.do?bug_id=8010297>
Fix:
http://cr.openjdk.java.net/~__anthony/8-55-isLoggable-__8010297.0/
<http://cr.openjdk.java.net/%7Eanthony/8-55-isLoggable-8010297.0/>
--
best regards,
Anthony
On 3/22/2013 2:26, Anthony Petrov wrote:
Hi Laurent,
The fix looks great to me. Thank you very much.
We still need at least one review, though. Hopefully
net-dev@ and/or swing-dev@ folks might help us out a bit.
--
best regards,
Anthony
On 3/20/2013 15:10, Anthony Petrov wrote:
Hi Laurent,
Thanks for the patch. I've filed a bug at:
http://bugs.sun.com/view_bug.__do?bug_id=8010297
<http://bugs.sun.com/view_bug.do?bug_id=8010297>
(should be available in a day or two)
and published a webrev generated from your patch at:
http://cr.openjdk.java.net/~__anthony/8-55-isLoggable-__8010297.0/
<http://cr.openjdk.java.net/%7Eanthony/8-55-isLoggable-8010297.0/>
I'm also copying swing-dev@ and net-dev@ because the
fix affects those areas too. I myself will review
the fix a bit later but am sending it now for other
folks to take a look at it.
On 3/19/2013 15:29, Laurent Bourgès wrote:
I am sorry I started modifying PlatformLogger
and reverted changes to this class as it is
another topic to be discussed later: isLoggable
performance and waste due to HashMap<Integer,
Level> leads to Integer allocations (boxing).
I saw your message to core-libs-dev@, so I just
dropped all changes to the PlatformLogger from this
patch.
Finally, I have another question related to the
WrapperGenerator class: it generates a lot of
empty log statements (XEvent):
log
<http://grepcode.com/file/__repository.grepcode.com/java/__root/jdk/openjdk/6-b14/sun/__awt/X11/XWrapperBase.java#__XWrapperBase.0log
<http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/sun/awt/X11/XWrapperBase.java#XWrapperBase.0log>>.finest
<http://grepcode.com/file/__repository.grepcode.com/java/__root/jdk/openjdk/6-b14/java/__util/logging/Logger.java#__Logger.finest%28java.lang.__String%29
<http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/util/logging/Logger.java#Logger.finest%28java.lang.String%29>>("");
Is it really useful to have such statements ? I
would keep logs with non empty messages only.
See WrapperGenerator:753:
String s_log =
(generateLog?"log.finest(\"\")__;":"");
I believe they're used for log formatting purposes
to separate numerous events in a log (e.g. think of
mouse-move events - there can be hundreds of them in
a raw).
Please note that the hg export format is not that
useful unless you're assigned an OpenJDK id already
(please see Dalibor's message for details) because I
can't import it directly. So for the time being you
could send just raw patches (i.e. the output of hg
diff only - and there's no need to commit your
changes in this case). Also, please note that the
mailing lists strip attachments. The reason I got it
is because I was listed in To: of your message. So
when sending patches you can:
1) post them inline, or
2) attach them and add a person to To: of your
message, or
3) upload them somewhere on the web.
However, it would be best if you could generate a
webrev for your changes and upload it somewhere.
Currently this is the standard format for reviewing
fixes in OpenJDK.
--
best regards,
Anthony
Regards,
Laurent
2013/3/19 Laurent Bourgès
<bourges.laur...@gmail.com
<mailto:bourges.laur...@gmail.com>
<mailto:bourges.laurent@gmail.__com
<mailto:bourges.laur...@gmail.com>>>
Hi antony,
FYI I started reviewing and fixing all
PlatformLogger use cases (not
too many as I thought first) mainly used by
awt / swing projects to
provide you a patch on latest JDK8 source code:
I am adding the log level check when it is
missing:
if (...log.isLoggable(__PlatformLogger.xxx)) {
log...
}
I will not change the String + operations to
use the message format
syntax in this patch.
Do you accept such patch / proposed
contribution ?
Regards,
Laurent
2013/3/18 Laurent Bourgès
<bourges.laur...@gmail.com
<mailto:bourges.laur...@gmail.com>
<mailto:bourges.laurent@gmail.__com
<mailto:bourges.laur...@gmail.com>>>
Hi antony,
2 different things:
1/ PlatformLogger was patched (doLog
method) to avoid string
operations (message formatting) for
disabled logs (patch
submiited on JDK8 and JDK7u):
http://mail.openjdk.java.net/__pipermail/jdk7u-dev/2012-__April/002751.html
<http://mail.openjdk.java.net/pipermail/jdk7u-dev/2012-April/002751.html>
2/ I looked 2 hours ago on JDK7u AND
JDK8 source codes and both
still have:
- log statements WITHOUT log level check
: if
(log.isLoggable(__PlatformLogger.FINE))
log.fine(...);
- string operations (+) in log calls
that could be improved
using the message format syntax (String
+ args): for example,
avoid using PlatformLogger.fine(String +
...) in favor of using
PlatformLogger.fine(String msg,
Object... params)
I reported in my previous mail several
cases where the
isLoggable() call is missing and leads
to useless String
operations but also method calls
(Component.paramString() for
example).
Finally, I also provided other possible
cases (using grep);
maybe there is a better alternative to
find all occurences of
String operations in log calls.
Regards,
Laurent
2013/3/18 Anthony Petrov
<anthony.pet...@oracle.com
<mailto:anthony.pet...@oracle.com>
<mailto:anthony.petrov@oracle.__com
<mailto:anthony.pet...@oracle.com>>>
Hi Laurent,
Normally we fix an issue in JDK 8
first, and then back-port
the fix to a 7u release. You're
saying that in JDK 8 the
problem isn't reproducible anymore.
Can you please
investigate (using the Mercurial
history log) what exact fix
resolved it in JDK 8?
--
best regards,
Anthony
On 03/18/13 15:09, Laurent Bourgès
wrote:
Dear all,
I run recently netbeans profiler
on my swing application
(Aspro2:
http://www.jmmc.fr/aspro) under
linux x64 platform and I
figured out
that a lot of char[] instances
are coming from String +
operator called
by sun.awt.X11 code.
I looked at PlatformLogger
source code but found not way
to disable it
completely: maybe an empty
logger implementation could
be interesting to
be used during profiling or
normal use (not debugging).
Apparently JDK8 provides some
patchs to avoid String
creation when the
logger is disabled (level).
However, I looked also to the
sun.awt code (jdk7u
repository) to see the
origin of the string allocations:
XDecoratedPeer:
public void
handleFocusEvent(XEvent xev) {
...
*
focusLog.finer("Received focus event on shell:
" + xfe);
* }
public boolean
requestWindowFocus(long time,
boolean timeProvided) {
...
*
focusLog.finest("Real native focused
window: " +
realNativeFocusedWindow +
"\nKFM's focused window: " +
focusedWindow);
*...
*
focusLog.fine("Requesting focus to " + (this ==
toFocus ? "this
window" : toFocus));
*...
}
XBaseWindow:
public void xSetBounds(int
x, int y, int width, int
height) {
...
* insLog.fine("Setting
bounds on " + this + " to
(" + x + ", " +
y + "), " + width + "x" + height);
*}
XNetProtocol:
boolean doStateProtocol() {
...
*
stateLog.finer("____doStateProtocol() returns " +
res);
*}
XSystemTrayPeer:
XSystemTrayPeer(SystemTray
target) {
...
* log.fine(" check if
system tray is available.
selection owner:
" + selection_owner);
*}
void
addTrayIcon(XTrayIconPeer tiPeer) throws
AWTException {
...
* log.fine(" send
SYSTEM_TRAY_REQUEST_DOCK
message to owner: " +
selection_owner);
*}
XFramePeer:
public void
handlePropertyNotify(XEvent xev) {
...
stateLog.finer("State is the same: " + state);
}
However I only give here few
cases but certainly others
are still
present in the source code;
maybe findbugs or netbeans
warnings could
help you finding all of them.
I advocate the amount of waste
(GC) is not very
important but String
conversion are also calling
several toString() methods
that can be
costly (event, Frame, window ...)
Finally, I ran few grep commands
on the sun.awt.X11 code
(jdk7u) and you
can look at them to see all
string + operations related
to log statements.
PS: I may help fixing the source
code but I have no idea
how to
collaborate (provide a patch ?)
Regards,
Laurent Bourgès
--
Best regards, Sergey.
