[Query]Can LZo algorithm optimized for ARM NEON (SIMD instructions).

hoangduit / lz4

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[Query]Can LZo algorithm optimized for ARM NEON (SIMD instructions). #159

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago

Can LZo algorithm optimized for ARM NEON.If there is any version,could you 
please provide the same.

Original issue reported on code.google.com by manju.go...@gmail.com on 20 Mar 2015 at 3:23

GoogleCodeExporter commented 9 years ago

There is no assembler version using NEON instructions known and linked from lz4 
homepage at this time.

One could certainly be written, but don't expect NEON to show its strength in 
such a scenario. Most probable benefit is enlarged register and, potentially, 
bandwidth to L1 cache, which is good, but will only provide small benefit.

Original comment by yann.col...@gmail.com on 20 Mar 2015 at 3:43

GoogleCodeExporter commented 9 years ago

Original comment by yann.col...@gmail.com on 20 Mar 2015 at 3:44

Changed state: Done

GoogleCodeExporter commented 9 years ago

Thankyou for your reply. I was trying to understand the LZO compression 
algorithm , and convert to Neon Instructions , But algorithm understanding is 
difficult. As you replied,there is no Neon optimisation for LZ0 algorithm, is 
there any way (document,blog) to understand the LZ0 algorithm .

Original comment by manju.go...@gmail.com on 21 Mar 2015 at 5:28