ReactOS eating CPU time

[Casper Hornstrup]

In VMware, ReactOS eats up all available CPU time. Does anyone have an idea why?
Does it also do this on real hardware?

Casper

[Rick Parrish]

Casper Hornstrup wrote:
> <>In VMware, ReactOS eats up all available CPU time. Does anyone have 
> an idea why? Does it also do this on real hardware?

Isn't that just the nature of emulation? How else can the guest OS 
execute idle loops?

-rick

[Casper Hornstrup]

> -----Original Message-----
> From: [e-mail] 
> [mailto:[e-mail]] On Behalf Of Rick Parrish
> Sent: 15. november 2004 19:59
> To: ReactOS Development List
> Subject: Re: [ros-dev] ReactOS eating CPU time
>
> Casper Hornstrup wrote:
> > <>In VMware, ReactOS eats up all available CPU time. Does
>
> anyone have
> > an idea why? Does it also do this on real hardware?
>
> Isn't that just the nature of emulation? How else can the 
> guest OS execute idle loops?

When running Linux in VMware, the CPU can be idle.

Casper

[Thomas Weidenmueller]

Casper Hornstrup wrote:
> In VMware, ReactOS eats up all available CPU time. Does anyone have an idea why?
> Does it also do this on real hardware?
>
> Casper
>
> Ros-dev mailing list
> [e-mail]
> http://reactos.com:8080/mailman/listinfo/ros-dev

if you're referring to the GUI then it's because the gui eats up a lot 
of resources. a single mouse move for example causes roughly 1000 
lockings of the user handle table, then a bunch of locks for the gdi - 
not to mention the lower-level stuff in ntoskrnl. I'm working on this 
issue (especially the gui) in my rewrite branch.

Thomas

[Casper Hornstrup]

> if you're referring to the GUI then it's because the gui eats 
> up a lot of resources. a single mouse move for example causes 
> roughly 1000 lockings of the user handle table, then a bunch 
> of locks for the gdi - not to mention the lower-level stuff 
> in ntoskrnl. I'm working on this issue (especially the gui) 
> in my rewrite branch.
>
> Thomas

No, I'm talking about the CPU never being idle.

Casper

For me, vmware need's almost no CPU if reactos is idling in GUI mode, i.e.
not moveing the mouse etc.
Wintdows 2000, Vmware 4.5.2
> No, I'm talking about the CPU never being idle.
>
> Casper
>
> Ros-dev mailing list
> [e-mail]
> http://reactos.com:8080/mailman/listinfo/ros-dev

[Casper Hornstrup]

> -----Original Message-----
> From: [e-mail] 
> [mailto:[e-mail]] On Behalf Of 
> [e-mail]
> Sent: 15. november 2004 20:41
> To: ReactOS Development List
> Subject: RE: [ros-dev] ReactOS eating CPU time
>
> For me, vmware need's almost no CPU if reactos is idling in 
> GUI mode, i.e.
> not moveing the mouse etc.
> Wintdows 2000, Vmware 4.5.2

Hmm, maybe it is just my configuration then. VMware 4.0.5 on Windows Server 2003.

Casper

[K McI]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Casper Hornstrup wrote:
|
|
|
|>-----Original Message-----
|>From: [e-mail]
|>[mailto:[e-mail]] On Behalf Of
|>[e-mail]
|>Sent: 15. november 2004 20:41
|>To: ReactOS Development List
|>Subject: RE: [ros-dev] ReactOS eating CPU time
|>
|>For me, vmware need's almost no CPU if reactos is idling in
|>GUI mode, i.e.
|>not moveing the mouse etc.
|>Wintdows 2000, Vmware 4.5.2
|
|
| Hmm, maybe it is just my configuration then. VMware 4.0.5 on Windows
Server 2003.
|
| Casper

Just to inform, that is an OLD version of VMware, the newer ones may fix
some internal error, or do things faster?

~           -uniQ
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.2.5 (MingW32)
> Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
>
> iD8DBQFBmegW7mze81O92HkRArG2AJ4lQqCfolhzYCkxnAUwL+npC0d2bgCfX63e
> /WSWrFlJd+DTF4dRdRijjjs=
> =haqQ
> -----END PGP SIGNATURE-----

[James Tabor]

Casper Hornstrup wrote:
> > -----Original Message-----
> > From: [e-mail] 
> > [mailto:[e-mail]] On Behalf Of 
> > [e-mail]
> > Sent: 15. november 2004 20:41
> > To: ReactOS Development List
> > Subject: RE: [ros-dev] ReactOS eating CPU time
> >
> > For me, vmware need's almost no CPU if reactos is idling in 
> > GUI mode, i.e.
> > not moveing the mouse etc.
> > Wintdows 2000, Vmware 4.5.2
>
> Hmm, maybe it is just my configuration then. VMware 4.0.5 on Windows Server 2003.
>
> Casper

Dont beleave that one moment! I can repeat the slow down on Qemu as well. Just
run it for 12+ hours and you will see.
James

[Gunnar Dalsnes]

> if you're referring to the GUI then it's because the gui eats 
> up a lot 
> of resources. a single mouse move for example causes roughly 1000 
> lockings of the user handle table, then a bunch of locks for 
> the gdi - 
> not to mention the lower-level stuff in ntoskrnl. I'm working on this 
> issue (especially the gui) in my rewrite branch.

It's not just the gui. Ros is slow in general also. When compiling ros on
ros in native console (in vmware) it takes hours... Ros has long way to go
before its as fast as nt 4.
> Thomas
> _______________________________________________
> Ros-dev mailing list
> [e-mail]
> http://reactos.com:8080/mailman/listinfo/ros-dev

[Richard Campbell]

Well....NT4 is a speed demon, so that's not really a fair comparison :D

Gunnar Dalsnes wrote:
> > if you're referring to the GUI then it's because the gui eats 
> > up a lot 
> > of resources. a single mouse move for example causes roughly 1000 
> > lockings of the user handle table, then a bunch of locks for 
> > the gdi - 
> > not to mention the lower-level stuff in ntoskrnl. I'm working on this 
> > issue (especially the gui) in my rewrite branch.
>
> It's not just the gui. Ros is slow in general also. When compiling ros on
> ros in native console (in vmware) it takes hours... Ros has long way to go
> before its as fast as nt 4.
> > Thomas
> > _______________________________________________
> > Ros-dev mailing list
> > [e-mail]
> > http://reactos.com:8080/mailman/listinfo/ros-dev
>
> Ros-dev mailing list
> [e-mail]
> http://reactos.com:8080/mailman/listinfo/ros-dev

[WaxDragon]

Is ros just sitting idle?  Ros is pretty well behaved here on VMWare,
but the new networking code with all the messages it spits out keeps
the host cpu pretty busy.

On Mon, 15 Nov 2004 19:48:56 +0100, Casper Hornstrup
[e-mail] wrote:
> In VMware, ReactOS eats up all available CPU time. Does anyone have an idea
> why? 
> Does it also do this on real hardware?
>
> Casper
>
> Ros-dev mailing list
> [e-mail]
> http://reactos.com:8080/mailman/listinfo/ros-dev
-- 
The cheese stands alone.

[James Tabor]

Hi!
Casper Hornstrup wrote:
> In VMware, ReactOS eats up all available CPU time. Does anyone have an 
> idea why?
> Does it also do this on real hardware?
>
> Casper

Yes, real hardware! It's the GUI! Explorer! I can run ROS for one week in
cmd only mode, compile and so on! But, when in the GUI, it slows down! So
slow you can watch the char's type across the cmd window.

It good to see others haven the same problem I've been writing about for
months now!
James

[Casper Hornstrup]

> Yes, real hardware! It's the GUI! Explorer! I can run ROS for 
> one week in cmd only mode, compile and so on! But, when in 
> the GUI, it slows down! So slow you can watch the char's type 
> across the cmd window.
>
> It good to see others haven the same problem I've been 
> writing about for months now!
> James

I'm pretty sure my problem is not the same. I don't boot into GUI
and I let ReactOS be idle for a while and the VMware monitor still
use all CPU time. With Linux it does the same until a few seconds
after leaving GRUB. Then CPU usage varies until Linux is idle and
yhen CPU usage is almost zero. I suspect maybe it is due to Linux
utilizing power management and VMware recognizes it or something
like that.

Casper

[Andreas Bjerkeholt]

----- Original Message ----- 
From: Casper Hornstrup
To: 'ReactOS Development List'
Sent: Tuesday, November 16, 2004 8:57 PM
Subject: RE: [ros-dev] ReactOS eating CPU time
> I'm pretty sure my problem is not the same. I don't boot into GUI
> and I let ReactOS be idle for a while and the VMware monitor still
> use all CPU time. With Linux it does the same until a few seconds
> after leaving GRUB. Then CPU usage varies until Linux is idle and
> yhen CPU usage is almost zero. I suspect maybe it is due to Linux
> utilizing power management and VMware recognizes it or something
> like that.
>
> Casper

Hi

I'm also on Windows 2003 Server and I do not have this problem. When ReactOS
is idle, VMware takes 0% CPU.
I have configured the guest OS as WindowsNT, do you have any other setting?
I'm running VMWare 4.5.2... Like K McI said, maybe you should try updating.

/Andreas Bjerkeholt