Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-11 Thread Ondrej Zary
James Bruce wrote: Ondrej Zary wrote: James Bruce wrote: Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-11 Thread Ondrej Zary
James Bruce wrote: Ondrej Zary wrote: James Bruce wrote: Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-10 Thread Bill Davidsen
Pavel Machek wrote: Hi! I was finally able to get C3 state working. It seems that my BIOS is leaving USB controllers in an active state(?). Without any USB drivers loaded, C3 is not possible. With drivers loaded, but no device plugged in C3 works fine. Kernel is 2.6.13-rc3-mm3 + acpi-sbs.

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-10 Thread Bill Davidsen
Lee Revell wrote: On Mon, 2005-08-01 at 01:29 +0200, Pavel Machek wrote: Hi! I'm pretty sure at least one distro will go with HZ<300 real soon now ;-). Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-10 Thread Bill Davidsen
Jim Crilly wrote: On 07/31/05 11:10:20PM +0200, Pavel Machek wrote: I really like having 250HZ as an _option_, but what I don't see is why it should be the _default_. I believe this is Lee's position as Last I checked, ACPI and CPU speed scaling were not enabled by default; Kernel defaults

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-10 Thread Bill Davidsen
Jim Crilly wrote: On 07/31/05 11:10:20PM +0200, Pavel Machek wrote: I really like having 250HZ as an _option_, but what I don't see is why it should be the _default_. I believe this is Lee's position as Last I checked, ACPI and CPU speed scaling were not enabled by default; Kernel defaults

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-10 Thread Bill Davidsen
Lee Revell wrote: On Mon, 2005-08-01 at 01:29 +0200, Pavel Machek wrote: Hi! I'm pretty sure at least one distro will go with HZ300 real soon now ;-). Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-10 Thread Bill Davidsen
Pavel Machek wrote: Hi! I was finally able to get C3 state working. It seems that my BIOS is leaving USB controllers in an active state(?). Without any USB drivers loaded, C3 is not possible. With drivers loaded, but no device plugged in C3 works fine. Kernel is 2.6.13-rc3-mm3 + acpi-sbs.

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-05 Thread James Bruce
Ondrej Zary wrote: James Bruce wrote: Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you anything. I should

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-05 Thread James Bruce
Ondrej Zary wrote: James Bruce wrote: Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you anything. I should

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-04 Thread Hans Kristian Rosbach
On Wed, 2005-08-03 at 08:57 -0500, Dmitry Torokhov wrote: > On 8/3/05, Hans Kristian Rosbach <[EMAIL PROTECTED]> wrote: > > On Tue, 2005-08-02 at 00:50 -0400, James Bruce wrote: > > > Theodore Ts'o wrote: > > > > On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: > > > >>The tradeoff

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-04 Thread Hans Kristian Rosbach
On Wed, 2005-08-03 at 08:57 -0500, Dmitry Torokhov wrote: On 8/3/05, Hans Kristian Rosbach [EMAIL PROTECTED] wrote: On Tue, 2005-08-02 at 00:50 -0400, James Bruce wrote: Theodore Ts'o wrote: On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: The tradeoff is a realistic

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Lee Revell
On Wed, 2005-08-03 at 14:13 -0300, Stephen Ray wrote: > Lee Revell wrote: > > On Tue, 2005-08-02 at 13:25 +0200, Pavel Machek wrote: > > > >>BTW I think many architectures have HZ=100 even in 2.6, so it is not > >>as siple as "go 2.6"... > > > > > > Does not matter. An app that only ever

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Stephen Ray
Lee Revell wrote: On Tue, 2005-08-02 at 13:25 +0200, Pavel Machek wrote: BTW I think many architectures have HZ=100 even in 2.6, so it is not as siple as "go 2.6"... Does not matter. An app that only ever worked on 2.6 + x86 will break on 2.6.13. Lee But then isn't that app broken?

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread James Bruce
(Sorry all, but after receiving about 5 similar messages I'm going to make one last reply.) [EMAIL PROTECTED] wrote: Also, my understanding was that when we properly support usb suspend, this won't be an issue anyway for much usb hardware. I think it's possible to put some mice to sleep when

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread ambx1
- Original Message - From: Theodore Ts'o <[EMAIL PROTECTED]> Date: Monday, August 1, 2005 4:42 pm Subject: Re: Power consumption HZ100, HZ250, HZ1000: new numbers > On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: > > > > The tradeoff is a realistic

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Dmitry Torokhov
On 8/3/05, Hans Kristian Rosbach <[EMAIL PROTECTED]> wrote: > On Tue, 2005-08-02 at 00:50 -0400, James Bruce wrote: > > Theodore Ts'o wrote: > > > On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: > > >>The tradeoff is a realistic 4.4% power savings vs a 300% increase in > > >>the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Hans Kristian Rosbach
On Tue, 2005-08-02 at 00:50 -0400, James Bruce wrote: > Theodore Ts'o wrote: > > On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: > >>The tradeoff is a realistic 4.4% power savings vs a 300% increase in > >>the minimum sleep period. A user will see zero power savings if they >

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Oliver Neukum
Am Dienstag, 2. August 2005 16:20 schrieben Sie: > On 2005-08-02T10:02:59, Lee Revell <[EMAIL PROTECTED]> wrote: > > > > Maybe new desktop systems - but what about the tens of millions of old > > > systems that don't. > > Does anyone really give a shit about saving power on the desktop anyway? >

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Oliver Neukum
Am Dienstag, 2. August 2005 16:20 schrieben Sie: On 2005-08-02T10:02:59, Lee Revell [EMAIL PROTECTED] wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Hans Kristian Rosbach
On Tue, 2005-08-02 at 00:50 -0400, James Bruce wrote: Theodore Ts'o wrote: On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: The tradeoff is a realistic 4.4% power savings vs a 300% increase in the minimum sleep period. A user will see zero power savings if they have a USB

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Dmitry Torokhov
On 8/3/05, Hans Kristian Rosbach [EMAIL PROTECTED] wrote: On Tue, 2005-08-02 at 00:50 -0400, James Bruce wrote: Theodore Ts'o wrote: On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: The tradeoff is a realistic 4.4% power savings vs a 300% increase in the minimum sleep

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread ambx1
- Original Message - From: Theodore Ts'o [EMAIL PROTECTED] Date: Monday, August 1, 2005 4:42 pm Subject: Re: Power consumption HZ100, HZ250, HZ1000: new numbers On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: The tradeoff is a realistic 4.4% power savings vs a 300

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread James Bruce
(Sorry all, but after receiving about 5 similar messages I'm going to make one last reply.) [EMAIL PROTECTED] wrote: Also, my understanding was that when we properly support usb suspend, this won't be an issue anyway for much usb hardware. I think it's possible to put some mice to sleep when

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Stephen Ray
Lee Revell wrote: On Tue, 2005-08-02 at 13:25 +0200, Pavel Machek wrote: BTW I think many architectures have HZ=100 even in 2.6, so it is not as siple as go 2.6... Does not matter. An app that only ever worked on 2.6 + x86 will break on 2.6.13. Lee But then isn't that app broken? What

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-03 Thread Lee Revell
On Wed, 2005-08-03 at 14:13 -0300, Stephen Ray wrote: Lee Revell wrote: On Tue, 2005-08-02 at 13:25 +0200, Pavel Machek wrote: BTW I think many architectures have HZ=100 even in 2.6, so it is not as siple as go 2.6... Does not matter. An app that only ever worked on 2.6 + x86 will

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lars Marowsky-Bree
On 2005-08-02T10:52:00, Lee Revell <[EMAIL PROTECTED]> wrote: > > Power consumption matters to server, desktop, and laptop. > > > > Assuming this is a laptop issue is wildly incorrect. > > I would think you'd get the best power/performance ration from a desktop > by just having it suspend after

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 13:45 -0400, linux-os (Dick Johnson) wrote: > It's a MONEY problem, something everybody can understand. > It's not an environmental problem at all. It is a huge environmental problem if you're burning fossil fuels to generate that power. Anyway I didn't mean there's no

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread linux-os \(Dick Johnson\)
On Tue, 2 Aug 2005, Folkert van Heusden wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. >>> >>> Does anyone really give a shit about saving power on the desktop anyway? >>> This is basically a laptop issue. >> >> Eh yes, very much. > >

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Folkert van Heusden
> > > Maybe new desktop systems - but what about the tens of millions of old > > > systems that don't. > > > > Does anyone really give a shit about saving power on the desktop anyway? > > This is basically a laptop issue. > > Eh yes, very much. Indeed. Safe the environment etc. Folkert van

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Prakash Punnoor
Lee Revell schrieb: > On Tue, 2005-08-02 at 11:42 -0400, James Bruce wrote: > >>I do like saving power, which is why I run cpu frequency scaling on >>every machine I have that supports it. > > > My Athlon XP desktop doesn't support frequency scaling but has working > ACPI C-states (at least

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 11:42 -0400, James Bruce wrote: > I do like saving power, which is why I run cpu frequency scaling on > every machine I have that supports it. My Athlon XP desktop doesn't support frequency scaling but has working ACPI C-states (at least under Windows) so will run as cool

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Ondrej Zary
James Bruce wrote: Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you anything. I should have said: 99% of

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread James Bruce
Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you anything. I should have said: 99% of desktops with the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Joel Jaeggli
On Tue, 2 Aug 2005, Lars Marowsky-Bree wrote: But rather think "data center". The difference between using our idle cpu cycles for [EMAIL PROTECTED] or just leaving the xeons and opterons idle when they're not crunching away is around $1300 a month (yes, I know it's a big datacenter)

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 11:13 +0200, Tomasz Torcz wrote: > On Mon, Aug 01, 2005 at 08:19:42AM +0200, Stefan Seyfried wrote: > > Lee Revell wrote: > > > On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: > > >> I'm pretty sure at least one distro will go with HZ<300 real soon now > > >> ;-). > >

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 10:43 -0400, Jeff Garzik wrote: > Lee Revell wrote: > > On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: > > > >>Maybe new desktop systems - but what about the tens of millions of old > >>systems that don't. > >> > > > > > > Does anyone really give a shit about

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Jeff Garzik
Lee Revell wrote: On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Power

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Roman Zippel
Hi, On Tue, 2 Aug 2005, Lee Revell wrote: > On Tue, 2005-08-02 at 13:23 +0200, Pavel Machek wrote: > > As I said, I do not care about default value. And you should not care, > > too, since distros are likely to pick their own defaults. > > If the default value does not matter then the default

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lars Marowsky-Bree
On 2005-08-02T10:02:59, Lee Revell <[EMAIL PROTECTED]> wrote: > > Maybe new desktop systems - but what about the tens of millions of old > > systems that don't. > Does anyone really give a shit about saving power on the desktop anyway? > This is basically a laptop issue. Desktops? Screw

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 16:20 +0200, Lars Marowsky-Bree wrote: > then you probably are simply too cheap > to buy a SUV too I have not driven a car since 2001. Lee - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Con Kolivas
On Wed, 3 Aug 2005 00:02, Lee Revell wrote: > On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: > > Maybe new desktop systems - but what about the tens of millions of old > > systems that don't. > > Does anyone really give a shit about saving power on the desktop anyway? > This is basically

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 13:25 +0200, Pavel Machek wrote: > BTW I think many architectures have HZ=100 even in 2.6, so it is not > as siple as "go 2.6"... Does not matter. An app that only ever worked on 2.6 + x86 will break on 2.6.13. Lee - To unsubscribe from this list: send the line

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 13:23 +0200, Pavel Machek wrote: > As I said, I do not care about default value. And you should not care, > too, since distros are likely to pick their own defaults. If the default value does not matter then the default should remain at 1000 so as to not violate the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Jens Axboe
On Tue, Aug 02 2005, Lee Revell wrote: > On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: > > Maybe new desktop systems - but what about the tens of millions of old > > systems that don't. > > > > Does anyone really give a shit about saving power on the desktop anyway? > This is basically

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: > Maybe new desktop systems - but what about the tens of millions of old > systems that don't. > Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Lee - To unsubscribe from this

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Stephen Clark
James Bruce wrote: Theodore Ts'o wrote: > On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: >>The tradeoff is a realistic 4.4% power savings vs a 300% increase in >>the minimum sleep period. A user will see zero power savings if they >>have a USB mouse (probably 99% of desktops).

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Pavel Machek
Hi! > >In the end, Linus will decide this anyway. I can understand that you > >don't want to change your application. Help developing the dynamic > >tick patch, and maybe you won't have to =) > > From what I can tell, tick skipping works fine right now, it just needs > some cleanup. Thus I'd

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Pavel Machek
Hi! > >Any argument along the lines of the change of a default > >value in the defconfig screwing people over equally applies the other > >way around; by not changing the defconfig, you're screwing laptop users > >(and others that want less power consumption) over. The world is not > >black and

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Tomasz Torcz
On Mon, Aug 01, 2005 at 08:19:42AM +0200, Stefan Seyfried wrote: > Lee Revell wrote: > > On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: > >> I'm pretty sure at least one distro will go with HZ<300 real soon now > >> ;-). > >> > > > > Any idea what their official recommendation for people

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Tomasz Torcz
On Sun, Jul 31, 2005 at 05:41:31PM -0400, Lee Revell wrote: > On Sun, 2005-07-31 at 23:10 +0200, Pavel Machek wrote: > > [But we > > probably want to enable ACPI and cpufreq by default, because that > > matches what 99% of users will use.] > > Sorry, this is just ridiculous. You're saying 99% of

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Tony Lindgren
* James Bruce <[EMAIL PROTECTED]> [050801 09:28]: > > Finally, as a conspiracy theorist, I wonder if Linus is just playing us > to get more people working on the tick skipping and highres timer > patches. Someone with the ability to herd cats obviously has to be > sneaky. As an impressive

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Tony Lindgren
* James Bruce [EMAIL PROTECTED] [050801 09:28]: Finally, as a conspiracy theorist, I wonder if Linus is just playing us to get more people working on the tick skipping and highres timer patches. Someone with the ability to herd cats obviously has to be sneaky. As an impressive

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Tomasz Torcz
On Sun, Jul 31, 2005 at 05:41:31PM -0400, Lee Revell wrote: On Sun, 2005-07-31 at 23:10 +0200, Pavel Machek wrote: [But we probably want to enable ACPI and cpufreq by default, because that matches what 99% of users will use.] Sorry, this is just ridiculous. You're saying 99% of Linux

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Tomasz Torcz
On Mon, Aug 01, 2005 at 08:19:42AM +0200, Stefan Seyfried wrote: Lee Revell wrote: On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: I'm pretty sure at least one distro will go with HZ300 real soon now ;-). Any idea what their official recommendation for people running apps

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Pavel Machek
Hi! Any argument along the lines of the change of a default value in the defconfig screwing people over equally applies the other way around; by not changing the defconfig, you're screwing laptop users (and others that want less power consumption) over. The world is not black and white,

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Pavel Machek
Hi! In the end, Linus will decide this anyway. I can understand that you don't want to change your application. Help developing the dynamic tick patch, and maybe you won't have to =) From what I can tell, tick skipping works fine right now, it just needs some cleanup. Thus I'd expect

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Stephen Clark
James Bruce wrote: Theodore Ts'o wrote: On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: The tradeoff is a realistic 4.4% power savings vs a 300% increase in the minimum sleep period. A user will see zero power savings if they have a USB mouse (probably 99% of desktops). On top

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Lee - To unsubscribe from this list:

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Jens Axboe
On Tue, Aug 02 2005, Lee Revell wrote: On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 13:23 +0200, Pavel Machek wrote: As I said, I do not care about default value. And you should not care, too, since distros are likely to pick their own defaults. If the default value does not matter then the default should remain at 1000 so as to not violate the principle

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 13:25 +0200, Pavel Machek wrote: BTW I think many architectures have HZ=100 even in 2.6, so it is not as siple as go 2.6... Does not matter. An app that only ever worked on 2.6 + x86 will break on 2.6.13. Lee - To unsubscribe from this list: send the line unsubscribe

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Con Kolivas
On Wed, 3 Aug 2005 00:02, Lee Revell wrote: On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 16:20 +0200, Lars Marowsky-Bree wrote: then you probably are simply too cheap to buy a SUV too I have not driven a car since 2001. Lee - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lars Marowsky-Bree
On 2005-08-02T10:02:59, Lee Revell [EMAIL PROTECTED] wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Desktops? Screw desktops.

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Roman Zippel
Hi, On Tue, 2 Aug 2005, Lee Revell wrote: On Tue, 2005-08-02 at 13:23 +0200, Pavel Machek wrote: As I said, I do not care about default value. And you should not care, too, since distros are likely to pick their own defaults. If the default value does not matter then the default should

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Jeff Garzik
Lee Revell wrote: On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Power

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 10:43 -0400, Jeff Garzik wrote: Lee Revell wrote: On Tue, 2005-08-02 at 09:10 -0400, Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 11:13 +0200, Tomasz Torcz wrote: On Mon, Aug 01, 2005 at 08:19:42AM +0200, Stefan Seyfried wrote: Lee Revell wrote: On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: I'm pretty sure at least one distro will go with HZ300 real soon now ;-). Any idea

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Joel Jaeggli
On Tue, 2 Aug 2005, Lars Marowsky-Bree wrote: But rather think data center. The difference between using our idle cpu cycles for [EMAIL PROTECTED] or just leaving the xeons and opterons idle when they're not crunching away is around $1300 a month (yes, I know it's a big datacenter) slightly

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread James Bruce
Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you anything. I should have said: 99% of desktops with the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Ondrej Zary
James Bruce wrote: Stephen Clark wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. If it's an old system, it probably doesn't have working ACPI C-states though. Without that, low HZ does not save you anything. I should have said: 99% of

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 11:42 -0400, James Bruce wrote: I do like saving power, which is why I run cpu frequency scaling on every machine I have that supports it. My Athlon XP desktop doesn't support frequency scaling but has working ACPI C-states (at least under Windows) so will run as cool as

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Prakash Punnoor
Lee Revell schrieb: On Tue, 2005-08-02 at 11:42 -0400, James Bruce wrote: I do like saving power, which is why I run cpu frequency scaling on every machine I have that supports it. My Athlon XP desktop doesn't support frequency scaling but has working ACPI C-states (at least under

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Folkert van Heusden
Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Eh yes, very much. Indeed. Safe the environment etc. Folkert van Heusden --

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread linux-os \(Dick Johnson\)
On Tue, 2 Aug 2005, Folkert van Heusden wrote: Maybe new desktop systems - but what about the tens of millions of old systems that don't. Does anyone really give a shit about saving power on the desktop anyway? This is basically a laptop issue. Eh yes, very much. Indeed. Safe the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lee Revell
On Tue, 2005-08-02 at 13:45 -0400, linux-os (Dick Johnson) wrote: It's a MONEY problem, something everybody can understand. It's not an environmental problem at all. It is a huge environmental problem if you're burning fossil fuels to generate that power. Anyway I didn't mean there's no point

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-02 Thread Lars Marowsky-Bree
On 2005-08-02T10:52:00, Lee Revell [EMAIL PROTECTED] wrote: Power consumption matters to server, desktop, and laptop. Assuming this is a laptop issue is wildly incorrect. I would think you'd get the best power/performance ration from a desktop by just having it suspend after 5 or 10

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread James Bruce
Theodore Ts'o wrote: > On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: >>The tradeoff is a realistic 4.4% power savings vs a 300% increase in >>the minimum sleep period. A user will see zero power savings if they >>have a USB mouse (probably 99% of desktops). On top of that, we can

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Theodore Ts'o
On Mon, Aug 01, 2005 at 12:18:18PM -0400, James Bruce wrote: > > The tradeoff is a realistic 4.4% power savings vs a 300% increase in the > minimum sleep period. A user will see zero power savings if they have a > USB mouse (probably 99% of desktops). On top of that, we can throw in > Con's

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Lee Revell
On Sat, 2005-07-30 at 12:18 -0600, Zwane Mwaikambo wrote: > On Sat, 30 Jul 2005, Lee Revell wrote: > > > So it looks like artsd wastes way more power DMAing a bunch of silent > It's already 'fixed' just set artsd to release the sound device after some > idle time. It's in the "Auto-Suspend"

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Lee Revell
On Mon, 2005-08-01 at 12:18 -0400, James Bruce wrote: > Yes, Lee needs to chill a bit. I'll hopefully explain our position > calmly enough below. I am a bit frustrated because when I first objected to 250HZ as the default, I was told to come up with some numbers. Now we have the numbers, and

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Lee Revell
On Mon, 2005-08-01 at 19:07 +0300, Jan Knutar wrote: > MPlayer cares more about unbroken sound drivers, since the video needs > to run at the speed of your sound boards oscillator if you don't want sound > and video to run at different rates. > Unfortunately people use an almost random mix of

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Jim Crilly
On 08/01/05 09:26:00AM +0200, Pavel Machek wrote: > > > > And there are older machines that won't boot with it enabled. The machine > > I'm typing this on has a really shitty ACPI implementation, I don't remember > > the details because it's been so long but I know that I have to disable > >

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread James Bruce
David Weinehall wrote: On Sun, Jul 31, 2005 at 07:23:54PM -0400, Lee Revell wrote: Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines of "Get bent"? Calm down. Yes, Lee needs to chill a bit. I'll

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Jan Knutar
On Monday 01 August 2005 09:19, Stefan Seyfried wrote: > > Any idea what their official recommendation for people running apps that > > require the 1ms sleep resolution is? Something along the lines of "Get > > bent"? > > MPlayer is using /dev/rtc and was running smooth for me since the good >

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread David Weinehall
On Sun, Jul 31, 2005 at 07:23:54PM -0400, Lee Revell wrote: > On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: > > I'm pretty sure at least one distro will go with HZ<300 real soon now > > ;-). > > > > Any idea what their official recommendation for people running apps that > require the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Pavel Machek
Hi! > > > > I'm pretty sure at least one distro will go with HZ<300 real soon now > > > > ;-). > > > > > > > > > > Any idea what their official recommendation for people running apps that > > > require the 1ms sleep resolution is? Something along the lines of "Get > > > bent"? > > > > So you

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Pavel Machek
Hi! > > > If the kernel defaults are irrelevant, then it would make more sense to > > > leave the default HZ as 1000 and not to enable the cpufreq and ACPI in > > > order to keep with the principle of least surprise for people who do use > > > kernel.org kernels. > > > > Well, I'd say you want

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Stefan Seyfried
Lee Revell wrote: > On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: >> I'm pretty sure at least one distro will go with HZ<300 real soon now >> ;-). >> > > Any idea what their official recommendation for people running apps that > require the 1ms sleep resolution is? Something along the

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Stefan Seyfried
Lee Revell wrote: On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: I'm pretty sure at least one distro will go with HZ300 real soon now ;-). Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines of

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Pavel Machek
Hi! If the kernel defaults are irrelevant, then it would make more sense to leave the default HZ as 1000 and not to enable the cpufreq and ACPI in order to keep with the principle of least surprise for people who do use kernel.org kernels. Well, I'd say you want ACPI enabled. New

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Pavel Machek
Hi! I'm pretty sure at least one distro will go with HZ300 real soon now ;-). Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines of Get bent? So you busy wait for 1msec, big deal.

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread David Weinehall
On Sun, Jul 31, 2005 at 07:23:54PM -0400, Lee Revell wrote: On Mon, 2005-08-01 at 00:47 +0200, Pavel Machek wrote: I'm pretty sure at least one distro will go with HZ300 real soon now ;-). Any idea what their official recommendation for people running apps that require the 1ms sleep

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Jan Knutar
On Monday 01 August 2005 09:19, Stefan Seyfried wrote: Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines of Get bent? MPlayer is using /dev/rtc and was running smooth for me since the good old 2.4

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread James Bruce
David Weinehall wrote: On Sun, Jul 31, 2005 at 07:23:54PM -0400, Lee Revell wrote: Any idea what their official recommendation for people running apps that require the 1ms sleep resolution is? Something along the lines of Get bent? Calm down. Yes, Lee needs to chill a bit. I'll hopefully

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Jim Crilly
On 08/01/05 09:26:00AM +0200, Pavel Machek wrote: And there are older machines that won't boot with it enabled. The machine I'm typing this on has a really shitty ACPI implementation, I don't remember the details because it's been so long but I know that I have to disable ACPI for

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Lee Revell
On Mon, 2005-08-01 at 19:07 +0300, Jan Knutar wrote: MPlayer cares more about unbroken sound drivers, since the video needs to run at the speed of your sound boards oscillator if you don't want sound and video to run at different rates. Unfortunately people use an almost random mix of alsa,

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Lee Revell
On Mon, 2005-08-01 at 12:18 -0400, James Bruce wrote: Yes, Lee needs to chill a bit. I'll hopefully explain our position calmly enough below. I am a bit frustrated because when I first objected to 250HZ as the default, I was told to come up with some numbers. Now we have the numbers, and

Re: Power consumption HZ100, HZ250, HZ1000: new numbers

2005-08-01 Thread Lee Revell
On Sat, 2005-07-30 at 12:18 -0600, Zwane Mwaikambo wrote: On Sat, 30 Jul 2005, Lee Revell wrote: So it looks like artsd wastes way more power DMAing a bunch of silent It's already 'fixed' just set artsd to release the sound device after some idle time. It's in the Auto-Suspend seection of

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