Adding a data point: using Firefox for Linux 64-bit, I see no difference
between Firefox 58.0.2 and 59.0.2.  Neither exhibit a slow canvas with the
NiFi UI.

-- Mike


On Tue, Apr 3, 2018 at 3:24 PM, Pierre Villard <pierre.villard...@gmail.com>
wrote:

> Yep, same here Mike, back to square one I guess...
> One additional remark: paint event duration seems to be proportional with
> the number of elements to paint on the UI. Not really surprising but just
> wanted to add the info.
>
>
> 2018-04-03 21:12 GMT+02:00 Mike Thomsen <mikerthom...@gmail.com>:
>
> > Found on Reddit that you can toggle OMTP using this: layers.omtp.enabled
> >
> > Disabled it and restarted. Didn't seem to do any good.
> >
> > On Tue, Apr 3, 2018 at 3:08 PM, Mike Thomsen <mikerthom...@gmail.com>
> > wrote:
> >
> > > Yeah, I'm using a Mac.
> > >
> > > On Tue, Apr 3, 2018 at 2:34 PM, Pierre Villard <
> > > pierre.villard...@gmail.com> wrote:
> > >
> > >> I've been trying to debug this one and here are my findings so far...
> > >>
> > >> When debugging performance with the developer tools, the "Paint" event
> > of
> > >> the page is what is taking so long (between 3.5s to 5.5s (!!!) when I
> > move
> > >> from one place to another on the root canvas). Based on the release
> note
> > >> of
> > >> Firefox 59.0 [1], I see that there is something new for Mac users
> (Mike,
> > >> are you also using a Mac?): "Improved graphics rendering using
> > >> Off-Main-Thread Painting (OMTP) [2] for Mac users (OMTP for Windows
> was
> > >> released in Firefox 58)".
> > >>
> > >> So it seems to be related to this new feature(someone using Windows
> > could
> > >> help conf irming if it's also slow using Firefox 58.x.).
> > >> I tried to find existing bugs but didn't find anything really
> > relevant...
> > >>
> > >> [1] https://www.mozilla.org/en-US/firefox/59.0/releasenotes/
> > >> [2] https://mozillagfx.wordpress.com/2017/12/05/off-main-
> > thread-painting/
> > >>
> > >>
> > >>
> > >> 2018-04-03 16:00 GMT+02:00 Mike Thomsen <mikerthom...@gmail.com>:
> > >>
> > >> > I experienced it yesterday as well. I'm about to install a LTS
> version
> > >> of
> > >> > Firefox so I can keep going there.
> > >> >
> > >> > While someone from the UI side figures this out, I think it should
> be
> > >> filed
> > >> > as a bug report to Mozilla.
> > >> >
> > >> > On Sat, Mar 31, 2018 at 5:04 PM, Pierre Villard <
> > >> > pierre.villard...@gmail.com
> > >> > > wrote:
> > >> >
> > >> > > Just confirmed that behavior changed between Firefox 58.x and
> 59.x.
> > >> > > I'll let our UI gurus find the root cause and will probably use
> > >> Chrome in
> > >> > > the meantime :)
> > >> > >
> > >> > > 2018-03-31 22:02 GMT+02:00 Pierre Villard <
> > >> pierre.villard...@gmail.com>:
> > >> > >
> > >> > > > Hi guys,
> > >> > > >
> > >> > > > I'm running on master, using Firefox (59.0.2), and it seems it
> got
> > >> > slower
> > >> > > > to move around the canvas. In my case, I've around 10 PGs and
> > >> around 50
> > >> > > > processors. When trying to move from one place to another at the
> > >> root
> > >> > > > level, it's really slow and movement is intermittent/broken (not
> > >> > fluid).
> > >> > > > When accessing the same NiFi with Chrome, no issue at all.
> > >> > > >
> > >> > > > Problem is... I've also tried with a NiFi 1.5.0 and a NiFi
> 1.3.0 I
> > >> have
> > >> > > > locally with various workflows, and it's the same with the older
> > >> > > versions.
> > >> > > >
> > >> > > > Wondering if this could be related to the upgrade to Firefox
> 59.x.
> > >> > > >
> > >> > > > Has anyone experienced the same?
> > >> > > >
> > >> > > > I can try to downgrade to Firefox 58.x to confirm but wanted to
> > >> check
> > >> > > with
> > >> > > > the community first.
> > >> > > >
> > >> > > > Thanks!
> > >> > > >
> > >> > > >
> > >> > > >
> > >> > >
> > >> >
> > >>
> > >
> > >
> >
>

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