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Re: [PATCHv2] powerpc: POWER8 memcpy optimization for cached memory
- From: Florian Weimer <fweimer at redhat dot com>
- To: Tulio Magno Quites Machado Filho <tuliom at linux dot vnet dot ibm dot com>, libc-alpha at sourceware dot org
- Cc: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>, Rajalakshmi Srinivasaraghavan <raji at linux dot vnet dot ibm dot com>
- Date: Fri, 8 Dec 2017 21:06:32 +0100
- Subject: Re: [PATCHv2] powerpc: POWER8 memcpy optimization for cached memory
- Authentication-results: sourceware.org; auth=none
- References: <87vaik8uxy.fsf@linux.vnet.ibm.com> <20171208194020.5005-1-tuliom@linux.vnet.ibm.com>
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.
(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.)
Thanks,
Florian