Linux support for ARM big.LITTLE
Posted Feb 17, 2012 16:40 UTC (Fri) by BenHutchings
In reply to: Linux support for ARM big.LITTLE
Parent article: Linux support for ARM big.LITTLE
On Intel and AMD x86 CPUs we already have cases where turning off some cores will let you run other cores at a higher clock speed (thermal/current limitations), and where you can run some cores at lower speeds than others.
The Linux scheduler already generically supports the grouping of CPU threads that share resources, and tends to spread runnable tasks out across groups (although it can also be configured to concentrate them in order to save power). I think that this should result in enabling the 'turbo' mode where possible.
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