RFC: Improvements to superpages support on ARM

[Zbigniew Bodek]

2014-02-15 14:02 GMT+01:00 Ruslan Bukin <br at freebsd.org>:
> On Mon, Feb 10, 2014 at 02:13:20AM +0100, Zbigniew Bodek wrote:
>> Hello.
>>
>> I would like to submit some patches for superpages support.
>>
>> Please check out below:
>> http://people.freebsd.org/~zbb/arm/pmap/superpages/02.2014/
>>
>> I will appreciate if someone could test the patches (all patches need
>> to be applied).
>> All comments and remarks are also welcome.
>>
>> You can stress the memory system by using for example forkbomb from ports:
>> benchmarks/forkbomb/
>>
>> forkbomb -M -l 512 --runasroot --quit
>> will allocate and touch 512 MB of memory
>>
>> Please remember to set loader variable:
>> vm.pmap.sp_enabled=1
>> or sp_enabled to positive value in pmap-v6.c
>>
>
> works fine on freescale VF50
>
> % sysctl vm.pmap.sp_enabled
> vm.pmap.sp_enabled: 1
>
> % forkbomb -M -l 32 --runasroot --quit
> Safety alarm at 300 sec. enabled.
> Actions: alloc 32 MB (step 4096 kB) and touch it.
> Forkbomb 1.4 started.
> %
>
Hello.

Thanks a lot. Just committed the changes.

Best regards
zbb