On Thu, 2005-03-10 at 11:03 +0000, Richard Hughes wrote: > Rodd Clarkson <rodd <at> clarkson.id.au> writes: > > Watching my CPU use, I get a spike every 5 seconds (a cheap one thousand > > and one, two thousand and two quess). > > This is really quite annoying. It's essentially a pause in your UI > > every 5 seconds or so, including music that's playing and the likes. > > Oops. The new acpi check code polls every 5 seconds to support laptops that > don't give ACPI events. I'm not sure why the poll would cause such a massive > chunk of CPU. David, the BIOS can take however long it wants to report certain things. Polling for battery can easily take a few dozen miliseconds. Asking more complex stuff can take longer. It's really better to never poll ;( (I realize the user experience isnt great there if the bios is crippled, but well.....)
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