Messages in this thread | | | Date | Sun, 8 Nov 2015 22:12:03 -0800 | Subject | Re: Question with maxcpus= parameter. | From | Yinghai Lu <> |
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On Sun, Nov 8, 2015 at 9:47 PM, Zhenzhong Duan <zhenzhong.duan@oracle.com> wrote: > Tried nr_cpus=4, works. >
nr_cpus and maxcpus are different.
maxcpus=4 means kernel will only bring up 4 cpus, but other cpus still can be brought up online. if there are more cpu are there according acpi MADT.
nr_cpus=4 that means 4 is hard limit, just like you compiled kernel with CONFIG_NR_CPUS=4.
Yinghai
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