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

Lee Revell
2005-07-31T23:53:58Z

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 of "Get
> > bent"?
>
> So you busy wait for 1msec, big deal.

Which requires changing all those apps. I thought we tried not to break
userspace with minor kernel version upgrades.

> Some machines can't even keep time properly with HZ=1000.

If your workaround for broken hardware involves screwing over people
with good hardware, it might be the wrong workaround.

> Official recommendation is likely "help us
> with CONFIG_NO_IDLE_HZ" or "get over it".

IOW, "if you don't like it, get another distro, or compile your own
kernel".

Lee