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Date:      Wed, 20 Mar 2013 11:30:35 -0700
From:      Kevin Oberman <rkoberman@gmail.com>
To:        Jeremy Messenger <mezz.freebsd@gmail.com>
Cc:        FreeBSD GNOME Users <gnome@freebsd.org>, Sergio Lenzi <lenzi.sergio@gmail.com>
Subject:   Re: nautilus eating 1 CPU and doing lots of I/O
Message-ID:  <CAN6yY1u-RGWzoycqKa=MXoA3tLz1=D=F=kKb1EcX7Qqa8_4UdA@mail.gmail.com>
In-Reply-To: <CADLFttcOYYAyb3QavuCF4s-hPyTFTsYfqM3bvrMoHniTxNQ5Vg@mail.gmail.com>
References:  <CAN6yY1sP%2Bj4AS4f1XeaoDg5LOHachWCDVRU%2BgdRU5Hy-Sv85MA@mail.gmail.com> <CAN6yY1vXO44GVbgwu3BqMg2tdDP6CenLZCo3PFRyK9y-owx=Bw@mail.gmail.com> <CADLFttetHzf50a6nS40Q75gj0jMsJMB2tLFQVgztdagdhMN16A@mail.gmail.com> <CADLFttf%2B8HET3Z4%2B5gcL_rM6UkaQ2-eowQiNq27WySJ-Bo%2BB8Q@mail.gmail.com> <CAN6yY1uWiaJELLNjx=v5%2BSAFOV10yB6wkDaq4Ngea3ZnR1UPFw@mail.gmail.com> <CADLFttcOYYAyb3QavuCF4s-hPyTFTsYfqM3bvrMoHniTxNQ5Vg@mail.gmail.com>

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On Wed, Mar 20, 2013 at 9:37 AM, Jeremy Messenger
<mezz.freebsd@gmail.com> wrote:
> On Wed, Mar 20, 2013 at 11:24 AM, Kevin Oberman <rkoberman@gmail.com> wro=
te:
>> On Wed, Mar 20, 2013 at 9:04 AM, Jeremy Messenger
>> <mezz.freebsd@gmail.com> wrote:
>>> On Wed, Mar 20, 2013 at 10:24 AM, Jeremy Messenger
>>> <mezz.freebsd@gmail.com> wrote:
>>>> On Wed, Mar 20, 2013 at 1:13 AM, Kevin Oberman <rkoberman@gmail.com> w=
rote:
>>>>> On Tue, Mar 19, 2013 at 10:03 PM, Kevin Oberman <rkoberman@gmail.com>=
 wrote:
>>>>>>
>>>>>> Since I updated nautilus a few days ago I am seeing very odd behavio=
r.
>>>>>>
>>>>>> When I open a nautilus window, I see my CPUs at 20-25% load, mostly =
in nautilus. I/O jumps from near zero to several MBps,. It varies in the on=
es I tried between 4 and 16 MBps depending on the number of files (not fold=
ers). ktrace shows lots of reads returning "Resource temporarily unavailabl=
e". I also note that most of my thumbnails are not showing up, just the gen=
eric icons for the file type. I'm guessing some issue with finding, loading=
 or generating the thumbnails.
>>>>>>
>>>>>> I have no idea what to look for to provide any real data or to track=
 this.
>>>>>
>>>>> I just noticed this post to ports@ made earlier today pointing out th=
e
>>>>> problem, but not a good solution.
>>>>> :
>>>>> Sergio de Almeida Lenzi Tue, 19 Mar 2013 12:42:16 -0700
>>>>>
>>>>> Hello,,
>>>>>
>>>>> On update ports via svn from 2013-03-10 to today,
>>>>> after a portmaster -a, the system (gnome2)
>>>>> stopped to show any thumbnails..
>>>>>
>>>>> The main reason is that it writes the thumbnail
>>>>> in .thumbnails/normal/xxxxxxx.png
>>>>> but than tries to read it from .cache/thumbnails/normal/xxxxxxxxx.png
>>>>>
>>>>> Can some "nautilus guru"  tell me how to fix this???
>>>>>
>>>>> for now I create a liink in the .cache/thumbnails -> ./thumbnails  th=
is
>>>>> works
>>>>> but is not a solution...
>>>>
>>>> That is very weird problem. Gotta figure where the .cache is at one of
>>>> port. Must be one of kwm's recently update.
>>>
>>> Found it, it's related with the glib20 update. See here:
>>>
>>> https://bugzilla.gnome.org/show_bug.cgi?id=3D675168
>>>
>>> I found it from in its NEWS, it's in the "Overview of changes from
>>> GLib 2.33.2 to 2.33.3" section.
>>>
>>> It looks like we will have to search for a better solution. By either
>>> patch in GNOME 2 stuff or patch in glib20 to make it fallback
>>> (compatible). The developer will not create a fallback for old stuff's
>>> sake.
>>
>> Sigh. So some apps are still assuming .thumbnails and glib has moved
>
> Which apps? Add patch in gnome-desktop should take care if other apps
> are depend on gnome-desktop.

OK. I don't know enough of Gnome 2 organization to know that, so it's prett=
y
straight-forward.

>> to 'doing the right thing" but not allowed for apps that don't yet
>> know it. For nautilus it creates an endless loop of looking for the
>> thumbnail in A, not finding it, calling the routines to create a new
>> thumbnail which puts it in B, and then repeats forever. The CPU is
>> eaten and I/O generated in making new thumbs continually.
>>
>> What all creates the thumbnails? If it is a single place that contains
>> the location, it's not too much to fix, but finding it could be
>> tricky. I'm hunting for it now in header files but there are a LOT of
>> them that contain "thumbnails" and I have just started looking.
>>
>> For now I'm taking the easy way out by creating a symlink as Sergio
>> suggested. Not the right answer, I know, but it should work. I'm also
>> copying him as he posted to ports and may not read gnome@.
>
> Please try http://people.freebsd.org/~mezz/patch/patch-glib2_34 by put
> it in the x11/gnome-desktop/files/ then reinstall it. Remove the
> symlink.

No symlink and the thumbs are generated and CPU and I/O are normal. Looks g=
ood!
Looks ready to commit.

Thanks!
--=20
R. Kevin Oberman, Network Engineer
E-mail: rkoberman@gmail.com



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