[Engine-devel] GWT Dev Mode unbearably slow in WebAdmin

Greg Sheremeta gshereme at redhat.com
Fri Mar 21 14:04:17 UTC 2014 

----- Original Message -----
> From: "Vojtech Szocs" <vszocs at redhat.com>
> To: "Greg Sheremeta" <gshereme at redhat.com>
> Cc: "engine-devel" <engine-devel at ovirt.org>
> Sent: Friday, March 21, 2014 9:57:00 AM
> Subject: Re: [Engine-devel] GWT Dev Mode unbearably slow in WebAdmin
> 
> 
> 
> ----- Original Message -----
> > From: "Greg Sheremeta" <gshereme at redhat.com>
> > To: "engine-devel" <engine-devel at ovirt.org>
> > Sent: Friday, March 21, 2014 1:32:54 AM
> > Subject: Re: [Engine-devel] GWT Dev Mode unbearably slow in WebAdmin
> > 
> > I'm afraid I need to resurrect this. I'm again seeing unbearable slowness
> > with GWT Dev Mode in webadmin on master. The first load is tolerable, and
> > one or two refreshes are ok, but after that it bogs down and is unusable.
> 
> Some suggestions (that have been already mentioned in this thread a while
> ago):
> 
> 1, use gwt-maven-plugin 2.5.1 instead of 2.4.0
>    in root pom.xml change
>    <gwt-maven-plugin.workingRefresh.version>2.4.0</gwt-maven-plugin.workingRefresh.version>
>    to
>    <gwt-maven-plugin.workingRefresh.version>${gwt.version}</gwt-maven-plugin.workingRefresh.version>
> 
> 2, disable GWT persistent unit cache
>    in frontend/webadmin/modules/pom.xml find
>    <artifactId>gwt-maven-plugin</artifactId>
>    add <persistentunitcache>false</persistentunitcache> to <configuration>
>    -or-
>    make gwt-debug [usual options]
>    DEV_EXTRA_BUILD_FLAGS="-Dgwt.persistentunitcache=false"
> 
> 3, try out GWT Super Dev Mode
> 
> Vojtech

Vojtech, you're not experiencing this slowness?


> 
> > 
> > Anyone else?
> > 
> > Greg
> > 
> > 
> > ----- Original Message -----
> > > From: "Greg Sheremeta" <gshereme at redhat.com>
> > > To: awels at redhat.com
> > > Cc: "engine-devel" <engine-devel at ovirt.org>
> > > Sent: Thursday, February 27, 2014 9:26:40 AM
> > > Subject: Re: [Engine-devel] GWT Dev Mode unbearably slow in WebAdmin
> > > 
> > > Thanks, and great work figuring it out :)
> > > 
> > > Greg
> > > 
> > > ----- Original Message -----
> > > > From: "Alexander Wels" <awels at redhat.com>
> > > > To: "Greg Sheremeta" <gshereme at redhat.com>
> > > > Cc: "Lior Vernia" <lvernia at redhat.com>, "Martin Betak"
> > > > <mbetak at redhat.com>,
> > > > "engine-devel" <engine-devel at ovirt.org>,
> > > > "Vojtech Szocs" <vszocs at redhat.com>
> > > > Sent: Thursday, February 27, 2014 8:32:00 AM
> > > > Subject: Re: [Engine-devel] GWT Dev Mode unbearably slow in WebAdmin
> > > > 
> > > > Master is back to its normal zippy self in GWT dev mode as of 8:25 EST
> > > > Feb
> > > > 27th 2014. With relative values for zippy. If you are annoyed by the
> > > > slow
> > > > GTW
> > > > dev mode be sure to fetch and rebase.
> > > > 
> > > > On Wednesday, February 19, 2014 10:51:06 AM Greg Sheremeta wrote:
> > > > > I agree with Lior. Alexander (cc'd) has a patch that will hopefully
> > > > > address
> > > > > it.
> > > > > 
> > > > > Greg
> > > > > 
> > > > > ----- Original Message -----
> > > > > 
> > > > > > From: "Lior Vernia" <lvernia at redhat.com>
> > > > > > To: "Martin Betak" <mbetak at redhat.com>
> > > > > > Cc: "Greg Sheremeta" <gshereme at redhat.com>, "engine-devel"
> > > > > > <engine-devel at ovirt.org>, "Vojtech Szocs" <vszocs at redhat.com>
> > > > > > Sent: Wednesday, February 19, 2014 10:27:51 AM
> > > > > > Subject: Re: [Engine-devel] GWT Dev Mode unbearably slow in
> > > > > > WebAdmin
> > > > > > 
> > > > > > Hi guys,
> > > > > > 
> > > > > > On 17/02/14 13:15, Martin Betak wrote:
> > > > > > > Yes, this has been my developer experience since I joined the
> > > > > > > project.
> > > > > > 
> > > > > > To my eyes, it hasn't always been this slow. Something aggravated
> > > > > > the
> > > > > > situation sometime in the past 3 weeks. I'm not knowledgeable
> > > > > > enough
> > > > > > to
> > > > > > say what went wrong, but this is not simply a gradual degradation
> > > > > > of
> > > > > > more code being compiled, etc.
> > > > > > 
> > > > > > Lior.
> > > > > > 
> > > > > > > The 5-6 minute page-loads are a standard but the GWT Dev Mode
> > > > > > > gets
> > > > > > > progressively
> > > > > > > slower after each "refresh" that involves frontend recompilation.
> > > > > > > Also
> > > > > > > the
> > > > > > > memory
> > > > > > > consumption increases and after 5-th "refresh" or so I have to
> > > > > > > kill
> > > > > > > it
> > > > > > > and
> > > > > > > recompile the whole engine.
> > > > > > > 
> > > > > > > Any improvement to current status would be much appreciated.
> > > > > > > 
> > > > > > > Martin
> > > > > > > 
> > > > > > > 
> > > > > > > 
> > > > > > > ----- Original Message -----
> > > > > > > 
> > > > > > >> From: "Greg Sheremeta" <gshereme at redhat.com>
> > > > > > >> To: "engine-devel" <engine-devel at ovirt.org>
> > > > > > >> Sent: Friday, February 14, 2014 4:50:46 PM
> > > > > > >> Subject: [Engine-devel] GWT Dev Mode unbearably slow in WebAdmin
> > > > > > >> 
> > > > > > >> Has anyone else noticed that GWT Dev Mode is unbearably slow for
> > > > > > >> WebAdmin?
> > > > > > >> On
> > > > > > >> my machine, it's to the point where I might as well rebuild the
> > > > > > >> entire
> > > > > > >> application for every change and not bother with Dev Mode. Pages
> > > > > > >> take
> > > > > > >> 4
> > > > > > >> or
> > > > > > >> 5
> > > > > > >> minutes to render. Sometimes after 5 minutes, I just give up,
> > > > > > >> close
> > > > > > >> everything, and rebuild the app.
> > > > > > >> 
> > > > > > >> For now, I want to see if others have this issue. If we confirm
> > > > > > >> that
> > > > > > >> it's
> > > > > > >> widespread, we can discuss ways to mitigate.
> > > > > > >> 
> > > > > > >> Greg Sheremeta
> > > > > > >> Red Hat, Inc.
> > > > > > >> Sr. Software Engineer, RHEV
> > > > > > >> Cell: 919-807-1086
> > > > > > >> gshereme at redhat.com
> > > > > > >> _______________________________________________
> > > > > > >> Engine-devel mailing list
> > > > > > >> Engine-devel at ovirt.org
> > > > > > >> http://lists.ovirt.org/mailman/listinfo/engine-devel
> > > > > > > 
> > > > > > > _______________________________________________
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> > > > > > > Engine-devel at ovirt.org
> > > > > > > http://lists.ovirt.org/mailman/listinfo/engine-devel
> > > > 
> > > > 
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>

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