Messages in this thread | | | Subject | Re: [PATCH]PCIE ASPM support - takes 2 | From | Valdis.Kletnieks@vt ... | Date | Tue, 15 Jan 2008 22:56:52 -0500 |
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On Tue, 15 Jan 2008 13:02:26 +0800, Shaohua Li said:
> In my test, power difference between powersave mode and performance mode > is about 1.3w in a system with 3 PCIE links.
Do you have any numbers on what the added latency is for powersave mode, and a rough idea of how quickly chipsets will drop to low-power? It may affect usability a lot if it's "adds 10ms latency after 100ms idle" or "adds 100ms latency after 5 seconds idle" or some other pattern...
(The chipset in my laptop claims to be an 82801G with 4 PCI-Express ports on it - I'm trying to get a rough idea what usage I'd get out of that feature..) [unhandled content-type:application/pgp-signature] | |