Thank you for the data!
I'm going to create a JIRA Issue and attach these there.
At the first sight there is something really bad on the Windows
Filesystem side.
From the 10 second completion time at lead 5.5 seconds were spent in a
Java.ioFile.list() and java.io.File.isDirectory() call. Both have native
implementations. Usually at this point we suspecting some AntiVirus
software/ Windows Defender.
My theory on this: As NetBeans is not (yet) installed with a signed
windows installer, the Security software(s) are handling it more
suspicious, checking every disk activity. As NetBeans uses really lot of
disk io, this is bogging down its performacne on Windows (and that's why
we are not seeing it on Linux/ Mac). As 8.2 has a signed installer, it
might get better scores at the sec software and that results better IO.
This is just a theory.
On 4/12/19 12:41 PM, Scott Palmer wrote:
Here is snapshot data for two events. One auto-complete (ctrl-Space)
taking 10s, the other getting a hint (alt-Enter) taking 7s. Yes it
does look like something is blocked. I’ve copied you and Jan directly
in case the list strips attachements.
On Apr 12, 2019, at 3:34 PM, Kodewerk <k...@kodewerk.com
<mailto:k...@kodewerk.com>> wrote:
Hi Scott,
Please export Snapshot data. As I mentioned before, this is likely a
stalled thread and as such an execution profiler is likely to not
report it. The most useful view IME are thread dumps at about 1
second intervals.
Kind regards,
Kirk
On Apr 12, 2019, at 12:23 PM, Scott Palmer <swpal...@gmail.com
<mailto:swpal...@gmail.com>> wrote:
I just experienced a 10s delay before the auto-complete popup
appeared (did see the “Please wait…” though). That was the second
press of auto-complete at the same spot. The first attempt took 8
seconds. I triggered the profiling for each, but I suspect the
first attempt may be tainted because the Gradle project was stuck
loading - there was a dependency that it couldn’t get. I commented
out that dependency (didn’t need it) so project was loaded fully and
tried again. This is with a very tiny toy project. I single-class
microbenchmark using the JMH gradle plugin.
There are options to export “Sanpshot Data”, “Forward Calls”,
“Hotspots” … which of these do you want?
Scott
On Apr 12, 2019, at 12:06 PM, Jan Lahoda <lah...@gmail.com
<mailto:lah...@gmail.com>> wrote:
Hi Scott,
In this case, it might be useful/helpful if we had the self
profiler snapshots. Possibly for one of the features, e.g. code
completion:
http://wiki.netbeans.org/FaqProfileMeNow<http://wiki.netbeans.org/FaqProfileMeNow>
(Refactoring/findusages is currently much faster with nb-javac than
without it, but the difference should be much smaller for code
completion, etc.)
Jan
12. dubna 2019 16:26:29 SELČ, Scott Palmer <swpal...@gmail.com
<mailto:swpal...@gmail.com>> napsal:
What is the best course of action for reporting slowness? I can’t
share my project.
I’m not certain how to give step-by-step instructions when the
problem is basically one step in most cases. E.g. invoke
auto-complete - nothing happens for several seconds. Invoke rename
- dialog doesn’t appear for several seconds. Find usages -
extremely slow > 5 second delay on a private member of a class less
than 100 lines.
In general it seems NB 11 is noticeably slower than NB 8.2. Not
good considering slowness was already my #1 complaint about NB 8.2.
I have so far found the benefits of NB outweigh the fact that it
is much slower than other IDEs for the same operations, but the
slowness of NB 11 is tipping the scale. I don’t want to switch
IDEs, pease don’t interpret this as some sort of threat to do so. I
would like to help find the issues in NB. But I don’t have the
bandwidth to debug NB and not being about to share my project makes
it difficult to provide helpful reports :-(
Are others seeing the slowness?
Find usages, renames, call-hierarchy, auto-complete… things I use
all the time, I often have to wait 5 to 10 seconds for a response
from the IDE, sometimes more.
I’ve already deleted user dir and cache and restarted.
I’m using Gradle-based Java projects, running NB 11.0 with JDK 8u202.
Is there a wiki page with instructions on profiling the IDE? Maybe
I can collect something useful.
Scott
To unsubscribe,
e-mail:dev-unsubscr...@netbeans.incubator.apache.org
<mailto:dev-unsubscr...@netbeans.incubator.apache.org>
For additional commands,
e-mail:dev-h...@netbeans.incubator.apache.org
<mailto:dev-h...@netbeans.incubator.apache.org>
For further information about the NetBeans mailing lists, visit:
https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists<https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists>
--
Odesláno z mého telefonu s Androidem pomocí pošty K-9 Mail. Omluvte
prosím moji stručnost.
---------------------------------------------------------------------
To unsubscribe, e-mail:dev-unsubscr...@netbeans.incubator.apache.org
<mailto:dev-unsubscr...@netbeans.incubator.apache.org>
For additional commands,
e-mail:dev-h...@netbeans.incubator.apache.org
<mailto:dev-h...@netbeans.incubator.apache.org>
For further information about the NetBeans mailing lists, visit:
https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
