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Ruby 1.8.6. - 100% CPU on OS X

David Ecd

9/3/2008 11:51:00 PM

Recently Ruby has decided to stomp my CPU. After running for a bit Ruby
sometimes spikes to 100% CPU - even if I just have, say, the IRB open in
terminal.

Any ideas?

David
--
Posted via http://www.ruby-....
7 Answers

Glen Holcomb

9/4/2008 5:13:00 PM

0

[Note: parts of this message were removed to make it a legal post.]

On Wed, Sep 3, 2008 at 5:50 PM, David Ecd <dmritacco@hotmail.com> wrote:

> Recently Ruby has decided to stomp my CPU. After running for a bit Ruby
> sometimes spikes to 100% CPU - even if I just have, say, the IRB open in
> terminal.
>
> Any ideas?
>
> David
> --
> Posted via http://www.ruby-....
>
>
Are there other things running that you think should be sharing with the
cpu? You could always renice the process so it doesn't hog if it is causing
you problems.

--
"Hey brother Christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

David Ecd

9/4/2008 5:42:00 PM

0

Glen Holcomb wrote:
> On Wed, Sep 3, 2008 at 5:50 PM, David Ecd <dmritacco@hotmail.com> wrote:
>
>>
> Are there other things running that you think should be sharing with the
> cpu? You could always renice the process so it doesn't hog if it is
> causing
> you problems.
>
> --
> "Hey brother Christian with your high and mighty errand, Your actions
> speak
> so loud, I can't hear a word you're saying."
>
> -Greg Graffin (Bad Religion)

Usually I just kill the process. Not a big problem when it happens once
in a while. But now it's happening several times a day...

Can't find a reference anywhere about ppl having similar problems...
--
Posted via http://www.ruby-....

Roger Pack

9/4/2008 6:00:00 PM

0

> Can't find a reference anywhere about ppl having similar problems...

I've had similar problems before--I think it might be some type of an OS
X thing, and is especially aggravated when using multiple ruby threads
[if I remember correctly]. You can use dtrace [google for it, or a
small hack is [1]] and see if it looks familiar to you at all.
I posted something about something once:
http://www.ruby-...topic/...

TAke care.
-=R

[1] http://betterlogic.com/ro...
--
Posted via http://www.ruby-....

Glen Holcomb

9/4/2008 6:01:00 PM

0

[Note: parts of this message were removed to make it a legal post.]

On Thu, Sep 4, 2008 at 11:41 AM, David Ecd <dmritacco@hotmail.com> wrote:

> Glen Holcomb wrote:
> > On Wed, Sep 3, 2008 at 5:50 PM, David Ecd <dmritacco@hotmail.com> wrote:
> >
> >>
> > Are there other things running that you think should be sharing with the
> > cpu? You could always renice the process so it doesn't hog if it is
> > causing
> > you problems.
> >
> > --
> > "Hey brother Christian with your high and mighty errand, Your actions
> > speak
> > so loud, I can't hear a word you're saying."
> >
> > -Greg Graffin (Bad Religion)
>
> Usually I just kill the process. Not a big problem when it happens once
> in a while. But now it's happening several times a day...
>
> Can't find a reference anywhere about ppl having similar problems...
> --
> Posted via http://www.ruby-....
>
>
Well if the process is actually running (garbage collection maybe) then it
would use clock cycles and if there is nothing else needing those cycles I
would expect it to use 100%.

--
"Hey brother Christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)

Michal Suchanek

9/4/2008 9:44:00 PM

0

On 04/09/2008, Glen Holcomb <damnbigman@gmail.com> wrote:
> On Thu, Sep 4, 2008 at 11:41 AM, David Ecd <dmritacco@hotmail.com> wrote:
>
> > Glen Holcomb wrote:
> > > On Wed, Sep 3, 2008 at 5:50 PM, David Ecd <dmritacco@hotmail.com> wrote:
> > >
> > >>
> > > Are there other things running that you think should be sharing with the
> > > cpu? You could always renice the process so it doesn't hog if it is
> > > causing
> > > you problems.
> > >
> > > --
> > > "Hey brother Christian with your high and mighty errand, Your actions
> > > speak
> > > so loud, I can't hear a word you're saying."
> > >
> > > -Greg Graffin (Bad Religion)
> >
> > Usually I just kill the process. Not a big problem when it happens once
> > in a while. But now it's happening several times a day...
> >
> > Can't find a reference anywhere about ppl having similar problems...
> > --
> > Posted via http://www.ruby-....
> >
> >
>
> Well if the process is actually running (garbage collection maybe) then it
> would use clock cycles and if there is nothing else needing those cycles I
> would expect it to use 100%.
>

Well, if it's on something like a G3 there aren't many CPU cycles,
spare or otherwise. Something like garbage collection could possibly
cause noticeable load. After all, top uses about one third of all cpu
time on these ..

If it's on decent hardware then irb consuming noticeable amounts of
CPU time sounds fishy. But then Firefox always eats some cpu time for
me, and there is usually plenty left so I don't watch it too closely.

Thanks

Michal

Axel Etzold

9/4/2008 10:05:00 PM

0


-------- Original-Nachricht --------
> Datum: Fri, 5 Sep 2008 06:44:13 +0900
> Von: "Michal Suchanek" <hramrach@centrum.cz>
> An: ruby-talk@ruby-lang.org
> Betreff: Re: Ruby 1.8.6. - 100% CPU on OS X

> On 04/09/2008, Glen Holcomb <damnbigman@gmail.com> wrote:
> > On Thu, Sep 4, 2008 at 11:41 AM, David Ecd <dmritacco@hotmail.com>
> wrote:
> >
> > > Glen Holcomb wrote:
> > > > On Wed, Sep 3, 2008 at 5:50 PM, David Ecd <dmritacco@hotmail.com>
> wrote:
> > > >
> > > >>
> > > > Are there other things running that you think should be sharing
> with the
> > > > cpu? You could always renice the process so it doesn't hog if it
> is
> > > > causing
> > > > you problems.
> > > >
> > > > --
> > > > "Hey brother Christian with your high and mighty errand, Your
> actions
> > > > speak
> > > > so loud, I can't hear a word you're saying."
> > > >
> > > > -Greg Graffin (Bad Religion)
> > >
> > > Usually I just kill the process. Not a big problem when it happens
> once
> > > in a while. But now it's happening several times a day...
> > >
> > > Can't find a reference anywhere about ppl having similar problems...
> > > --
> > > Posted via http://www.ruby-....
> > >
> > >
> >
> > Well if the process is actually running (garbage collection maybe) then
> it
> > would use clock cycles and if there is nothing else needing those
> cycles I
> > would expect it to use 100%.
> >
>
> Well, if it's on something like a G3 there aren't many CPU cycles,
> spare or otherwise. Something like garbage collection could possibly
> cause noticeable load. After all, top uses about one third of all cpu
> time on these ..
>
> If it's on decent hardware then irb consuming noticeable amounts of
> CPU time sounds fishy. But then Firefox always eats some cpu time for
> me, and there is usually plenty left so I don't watch it too closely.
>
> Thanks
>
> Michal

Hi --

I don't know if this applies to your CPU load problem, but I've had several strange errors related to Ruby
(on Linux Ubuntu).
When I reported them on this and other lists, the authors of various gems told me that they had tried
their software on a fresh install of Ubuntu and Ruby and their gem, without problems.
I then reinstalled Ubuntu on my system, and Ruby, from source, and everything else, and the bug disappeared.

I wrote something like that in response to another post, and Ara Howard wrote that he had had issues with
Ruby and OS X as well.

http://www.ruby-...topic/164627#new

Maybe a reinstall from source can help ?

Best regards,

Axel


--
Psssst! Schon das coole Video vom GMX MultiMessenger gesehen?
Der Eine für Alle: http://www.gmx.net/de/go/m...

Glen Holcomb

9/4/2008 10:19:00 PM

0

On Thu, Sep 4, 2008 at 4:04 PM, Axel Etzold <AEtzold@gmx.de> wrote:

>
> -------- Original-Nachricht --------
> > Datum: Fri, 5 Sep 2008 06:44:13 +0900
> > Von: "Michal Suchanek" <hramrach@centrum.cz>
> > An: ruby-talk@ruby-lang.org
> > Betreff: Re: Ruby 1.8.6. - 100% CPU on OS X
>
> > On 04/09/2008, Glen Holcomb <damnbigman@gmail.com> wrote:
> > > On Thu, Sep 4, 2008 at 11:41 AM, David Ecd <dmritacco@hotmail.com>
> > wrote:
> > >
> > > > Glen Holcomb wrote:
> > > > > On Wed, Sep 3, 2008 at 5:50 PM, David Ecd <dmritacco@hotmail.com=
>
> > wrote:
> > > > >
> > > > >>
> > > > > Are there other things running that you think should be sharing
> > with the
> > > > > cpu? You could always renice the process so it doesn't hog if i=
t
> > is
> > > > > causing
> > > > > you problems.
> > > > >
> > > > > --
> > > > > "Hey brother Christian with your high and mighty errand, Your
> > actions
> > > > > speak
> > > > > so loud, I can't hear a word you're saying."
> > > > >
> > > > > -Greg Graffin (Bad Religion)
> > > >
> > > > Usually I just kill the process. Not a big problem when it happens
> > once
> > > > in a while. But now it's happening several times a day...
> > > >
> > > > Can't find a reference anywhere about ppl having similar problems.=
.
> > > > --
> > > > Posted via http://www.ruby-....
> > > >
> > > >
> > >
> > > Well if the process is actually running (garbage collection maybe) th=
en
> > it
> > > would use clock cycles and if there is nothing else needing those
> > cycles I
> > > would expect it to use 100%.
> > >
> >
> > Well, if it's on something like a G3 there aren't many CPU cycles,
> > spare or otherwise. Something like garbage collection could possibly
> > cause noticeable load. After all, top uses about one third of all cpu
> > time on these ..
> >
> > If it's on decent hardware then irb consuming noticeable amounts of
> > CPU time sounds fishy. But then Firefox always eats some cpu time for
> > me, and there is usually plenty left so I don't watch it too closely.
> >
> > Thanks
> >
> > Michal
>
> Hi --
>
> I don't know if this applies to your CPU load problem, but I've had sever=
al
> strange errors related to Ruby
> (on Linux Ubuntu).
> When I reported them on this and other lists, the authors of various gems
> told me that they had tried
> their software on a fresh install of Ubuntu and Ruby and their gem, witho=
ut
> problems.
> I then reinstalled Ubuntu on my system, and Ruby, from source, and
> everything else, and the bug disappeared.
>
> I wrote something like that in response to another post, and Ara Howard
> wrote that he had had issues with
> Ruby and OS X as well.
>
> http://www.ruby-...topic/164627#new
>
> Maybe a reinstall from source can help ?
>
> Best regards,
>
> Axel
>
>
> --
> Psssst! Schon das coole Video vom GMX MultiMessenger gesehen?
> Der Eine f=FCr Alle: http://www.gmx.net/de/go/m...
>
>
I wonder if it does the same on the *BSDs?

--=20
"Hey brother Christian with your high and mighty errand, Your actions speak
so loud, I can't hear a word you're saying."

-Greg Graffin (Bad Religion)