Messages in this thread |  | | Date | Fri, 23 Oct 2020 09:45:42 +0200 | | From | Peter Zijlstra <> | | Subject | Re: [PATCH] smp: Add bootcpus parameter to boot subset of CPUs |
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On Thu, Oct 22, 2020 at 03:04:03PM -0700, Elliot Berman wrote: > In a heterogeneous multiprocessor system, specifying the 'maxcpus' > parameter on kernel command line does not provide sufficient control > over which CPUs are brought online at kernel boot time, since CPUs may > have nonuniform performance characteristics. Thus, add bootcpus kernel > parameter to control which CPUs should be brought online during kernel > boot. When both maxcpus and bootcpus is set, the more restrictive of the > two are booted.
Why would one wish to do so? Having the ability for abilities sake is no good.
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