[syslinux] Domain-specific HLT when idle
H. Peter Anvin
hpa at zytor.com
Sun May 3 00:23:40 PDT 2009
Geert Stappers wrote:
> Probably should 'halt_on_idle' be default
> and is a 'no_halt_on_idle' or a 'active_poll' needed.
> 'active_poll' has to be mentioned in de section 'serial port' of the docs.
I really don't like this. Chicken flags are hopeless; one way the
feature doesn't get used, the other way it still has all the downsides.
That doesn't mean that there isn't a possibility of going to a low-power
mode after a timeout or something like that.
This isn't just a virtualization issue, either; modern hardware can
easily burn *massively* more power without idle support. However, doing
it at the cost of reliability simply isn't an option...
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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