I have the same problem. Those calls are really slow because it is Windows. The slowest of all is File. getCanonicalPath/File.getCanonicalFile They really freeze the ui for some seconds
Il ven 12 apr 2019, 23:38 Laszlo Kishalmi <laszlo.kisha...@gmail.com> ha scritto: > 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 > > >
