Debian Bug report logs - #851332
xfce4-cpugraph-plugin: insane CPU use

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Package: xfce4-cpugraph-plugin; Maintainer for xfce4-cpugraph-plugin is Debian Xfce Maintainers <[email protected]>; Source for xfce4-cpugraph-plugin is src:xfce4-cpugraph-plugin (PTS, buildd, popcon).

Reported by: Adam Borowski <[email protected]>

Date: Sat, 14 Jan 2017 03:33:01 UTC

Severity: normal

Found in version xfce4-cpugraph-plugin/1.0.5-1

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Report forwarded to [email protected], Debian Xfce Maintainers <[email protected]>:
Bug#851332; Package xfce4-cpugraph-plugin. (Sat, 14 Jan 2017 03:33:04 GMT) (full text, mbox, link).


Acknowledgement sent to Adam Borowski <[email protected]>:
New Bug report received and forwarded. Copy sent to Debian Xfce Maintainers <[email protected]>. (Sat, 14 Jan 2017 03:33:04 GMT) (full text, mbox, link).


Message #5 received at [email protected] (full text, mbox, reply):

From: Adam Borowski <[email protected]>
To: Debian Bug Tracking System <[email protected]>
Subject: xfce4-cpugraph-plugin: insane CPU use
Date: Sat, 14 Jan 2017 04:29:30 +0100
Package: xfce4-cpugraph-plugin
Version: 1.0.5-1+b1
Severity: normal

To draw a tiny little widget, cpugraph takes:

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
10912 kilobyte  20   0  158224  16436  11936 R  56.6  0.2  10:34.92 panel-25-cpugra

The usage seems to increase if the system is loaded: 20ish% when the load is
a noise floor, more if there's something actually going on.  Not sure where
this could have come from -- both the update frequency and amount to draw is
the same whether you have near-zero noise or non-empty bars.


-- System Information:
Debian Release: stretch/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'), (150, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.3+ (SMP w/6 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages xfce4-cpugraph-plugin depends on:
ii  libatk1.0-0          2.22.0-1
ii  libc6                2.24-8
ii  libcairo2            1.14.8-1
ii  libfontconfig1       2.11.0-6.7
ii  libfreetype6         2.6.3-3+b1
ii  libgdk-pixbuf2.0-0   2.36.3-1
ii  libglib2.0-0         2.50.2-2
ii  libgtk2.0-0          2.24.31-1
ii  libpango-1.0-0       1.40.3-3
ii  libpangocairo-1.0-0  1.40.3-3
ii  libpangoft2-1.0-0    1.40.3-3
ii  libxfce4ui-1-0       4.12.1-2
ii  libxfce4util7        4.12.1-3
ii  xfce4-panel          4.12.1-2

xfce4-cpugraph-plugin recommends no packages.

xfce4-cpugraph-plugin suggests no packages.

-- no debconf information



Information forwarded to [email protected], Debian Xfce Maintainers <[email protected]>:
Bug#851332; Package xfce4-cpugraph-plugin. (Sun, 15 Jan 2017 10:51:03 GMT) (full text, mbox, link).


Acknowledgement sent to Yves-Alexis Perez <[email protected]>:
Extra info received and forwarded to list. Copy sent to Debian Xfce Maintainers <[email protected]>. (Sun, 15 Jan 2017 10:51:03 GMT) (full text, mbox, link).


Message #10 received at [email protected] (full text, mbox, reply):

From: Yves-Alexis Perez <[email protected]>
To: Adam Borowski <[email protected]>, [email protected]
Subject: Re: [Pkg-xfce-devel] Bug#851332: xfce4-cpugraph-plugin: insane CPU use
Date: Sun, 15 Jan 2017 11:49:42 +0100
[Message part 1 (text/plain, inline)]
On Sat, 2017-01-14 at 04:29 +0100, Adam Borowski wrote:
> The usage seems to increase if the system is loaded: 20ish% when the load is
> a noise floor, more if there's something actually going on.  Not sure where
> this could have come from -- both the update frequency and amount to draw is
> the same whether you have near-zero noise or non-empty bars.

Which GTK theme do you use?
-- 
Yves-Alexis
[signature.asc (application/pgp-signature, inline)]

Information forwarded to [email protected], Debian Xfce Maintainers <[email protected]>:
Bug#851332; Package xfce4-cpugraph-plugin. (Sun, 15 Jan 2017 16:15:03 GMT) (full text, mbox, link).


Acknowledgement sent to Adam Borowski <[email protected]>:
Extra info received and forwarded to list. Copy sent to Debian Xfce Maintainers <[email protected]>. (Sun, 15 Jan 2017 16:15:03 GMT) (full text, mbox, link).


Message #15 received at [email protected] (full text, mbox, reply):

From: Adam Borowski <[email protected]>
To: [email protected]
Subject: Re: [Pkg-xfce-devel] Bug#851332: xfce4-cpugraph-plugin: insane CPU use
Date: Sun, 15 Jan 2017 17:12:40 +0100
On Sun, Jan 15, 2017 at 11:49:42AM +0100, Yves-Alexis Perez wrote:
> On Sat, 2017-01-14 at 04:29 +0100, Adam Borowski wrote:
> > The usage seems to increase if the system is loaded: 20ish% when the load is
> > a noise floor, more if there's something actually going on.  Not sure where
> > this could have come from -- both the update frequency and amount to draw is
> > the same whether you have near-zero noise or non-empty bars.
> 
> Which GTK theme do you use?

Plasma Shock: https://www.xfce-look.org/p/1157147/

Somehow, the reproducibility is weird: right now I get around 1-2% when
idle, 8-14% when busy, but I've noticed this problem many times in the past.


Meow!
-- 
Autotools hint: to do a zx-spectrum build on a pdp11 host, type:
  ./configure --host=zx-spectrum --build=pdp11



Information forwarded to [email protected], Debian Xfce Maintainers <[email protected]>:
Bug#851332; Package xfce4-cpugraph-plugin. (Sun, 15 Jan 2017 21:42:02 GMT) (full text, mbox, link).


Acknowledgement sent to Yves-Alexis Perez <[email protected]>:
Extra info received and forwarded to list. Copy sent to Debian Xfce Maintainers <[email protected]>. (Sun, 15 Jan 2017 21:42:02 GMT) (full text, mbox, link).


Message #20 received at [email protected] (full text, mbox, reply):

From: Yves-Alexis Perez <[email protected]>
To: Adam Borowski <[email protected]>, [email protected]
Subject: Re: [Pkg-xfce-devel] Bug#851332: Bug#851332: xfce4-cpugraph-plugin: insane CPU use
Date: Sun, 15 Jan 2017 22:38:57 +0100
[Message part 1 (text/plain, inline)]
On Sun, 2017-01-15 at 17:12 +0100, Adam Borowski wrote:
> Plasma Shock: https://www.xfce-look.org/p/1157147/
> 
> Somehow, the reproducibility is weird: right now I get around 1-2% when
> idle, 8-14% when busy, but I've noticed this problem many times in the past.

Can you try with the default Xfce theme?
-- 
Yves-Alexis
[signature.asc (application/pgp-signature, inline)]

Information forwarded to [email protected], Debian Xfce Maintainers <[email protected]>:
Bug#851332; Package xfce4-cpugraph-plugin. (Tue, 07 Feb 2017 06:06:02 GMT) (full text, mbox, link).


Acknowledgement sent to Adam Borowski <[email protected]>:
Extra info received and forwarded to list. Copy sent to Debian Xfce Maintainers <[email protected]>. (Tue, 07 Feb 2017 06:06:02 GMT) (full text, mbox, link).


Message #25 received at [email protected] (full text, mbox, reply):

From: Adam Borowski <[email protected]>
To: [email protected]
Subject: Re: [Pkg-xfce-devel] Bug#851332: Bug#851332: xfce4-cpugraph-plugin: insane CPU use
Date: Tue, 7 Feb 2017 07:03:17 +0100
On Sun, Jan 15, 2017 at 10:38:57PM +0100, Yves-Alexis Perez wrote:
> On Sun, 2017-01-15 at 17:12 +0100, Adam Borowski wrote:
> > Plasma Shock: https://www.xfce-look.org/p/1157147/
> > 
> > Somehow, the reproducibility is weird: right now I get around 1-2% when
> > idle, 8-14% when busy, but I've noticed this problem many times in the past.
> 
> Can you try with the default Xfce theme?

Indeed, theme seems to make a major difference:
xfce-*: 0.3% idle, 0.7% busy
Adwaita: 1.7% idle, 2.5% busy
Plasma Shock minutes ago, before testing: 7% idle, 23% busy
Plasma Shock right now: 1.7% idle, 2.5% busy

Although, as it dropped after changing themes, it's possible the above tests
are meaningless as they reflect the reduced usage.  I haven't yet managed to
find out how to trigger the problem on demand.


Meow!
-- 
Autotools hint: to do a zx-spectrum build on a pdp11 host, type:
  ./configure --host=zx-spectrum --build=pdp11



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