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Re: [PATCHv2] powerpc: POWER8 memcpy optimization for cached memory

Florian Weimer <> writes:

> On 12/08/2017 08:40 PM, Tulio Magno Quites Machado Filho wrote:
>> +@deftp Tunable glibc.tune.cached_memopt
>> +The @code{glibc.tune.cached_memopt=[0|1]} tunable allows the user to enable
>> +optimizations recommended to cacheable memory.
>> +
>> +This tunable is specific to powerpc, powerpc64 and powerpc64le.
>> +@end deftp
> I think this has a slight grammar problem.
> What about this instead?
> The @code{glibc.tune.cached_memopt=[0|1]} tunable allows the user to 
> enable optimizations recommended for cacheable memory.  If set to 
> @code{1}, @theglibc{} assumes that the process memory image consists of 
> cacheable (non-device) memory only.  The default, @code{0}, indicates 
> that the process may use device memory.

And a much better description.

> (I think it's best not to mention string functions here because it is 
> impossible to describe how glibc.tune.cached_memopt affects them due to 
> compiler optimizations.)


Fixed locally.


Tulio Magno

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