Michael Ellerman writes:
> "Naveen N. Rao" writes:
>> (generic) is with Matt's arch-independent patches applied. Profiling
>> indicates that most of the overhead is actually with the lzo
>> decompression...
>>
>> Also, with a simple module to memset64() a 1GB vmalloc'ed buffer, here
>> are th
Excerpts from PrasannaKumar Muralidharan's message of April 5, 2017 11:21:
On 30 March 2017 at 12:46, Naveen N. Rao
wrote:
Also, with a simple module to memset64() a 1GB vmalloc'ed buffer, here
are the results:
generic:0.245315533 seconds time elapsed( +- 1.83% )
optimized:
On 30 March 2017 at 12:46, Naveen N. Rao
wrote:
> Also, with a simple module to memset64() a 1GB vmalloc'ed buffer, here
> are the results:
> generic:0.245315533 seconds time elapsed( +- 1.83% )
> optimized: 0.169282701 seconds time elapsed( +- 1.96% )
Wondering wha
"Naveen N. Rao" writes:
> (generic) is with Matt's arch-independent patches applied. Profiling
> indicates that most of the overhead is actually with the lzo
> decompression...
>
> Also, with a simple module to memset64() a 1GB vmalloc'ed buffer, here
> are the results:
> generic: 0.245315
On 2017/03/29 10:36PM, Michael Ellerman wrote:
> "Naveen N. Rao" writes:
> > I also tested zram today with the command shared by Wilcox:
> >
> > without patch: 1.493782568 seconds time elapsed( +- 0.08% )
> > with patch: 1.408457577 seconds time elapsed( +- 0.15% )
> >
> >
"Naveen N. Rao" writes:
> I also tested zram today with the command shared by Wilcox:
>
> without patch: 1.493782568 seconds time elapsed( +- 0.08% )
> with patch: 1.408457577 seconds time elapsed( +- 0.15% )
>
> ... which also shows an improvement along the same lines as
On 2017/03/28 11:44AM, Michael Ellerman wrote:
> "Naveen N. Rao" writes:
>
> > diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
> > index 85fa9869aec5..ec531de6 100644
> > --- a/arch/powerpc/lib/mem_64.S
> > +++ b/arch/powerpc/lib/mem_64.S
> > @@ -13,6 +13,23 @@
> > #includ
"Naveen N. Rao" writes:
> diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
> index 85fa9869aec5..ec531de6 100644
> --- a/arch/powerpc/lib/mem_64.S
> +++ b/arch/powerpc/lib/mem_64.S
> @@ -13,6 +13,23 @@
> #include
> #include
>
> +_GLOBAL(__memset16)
> + rlwimi r4,r
Based on Matthew Wilcox's patches for other architectures.
Signed-off-by: Naveen N. Rao
---
arch/powerpc/include/asm/string.h | 24
arch/powerpc/lib/mem_64.S | 19 ++-
2 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/inc
