I found that other hash functions are faster than the crc32 SSE instruction.
Though the hardware instruction seems like it would be faster, it takes more
cycles than simple multiplicative or murmur hash.
17.11.2014 17:31, Neil Horman ?:
> On Sun, Nov 16, 2014 at 11:59:16PM +0600, Yerden Zhumabekov wrote:
>> This is a rework of my previous patches improving performance of
>> rte_hash_crc. In addition, this revision brings a fallback mechanism to
>> ensure that CRC32 hash is calculated regardl
On Sun, Nov 16, 2014 at 11:59:16PM +0600, Yerden Zhumabekov wrote:
> This is a rework of my previous patches improving performance of
> rte_hash_crc. In addition, this revision brings a fallback mechanism to
> ensure that CRC32 hash is calculated regardless of hardware support from CPU
> (i.e. S
This is a rework of my previous patches improving performance of rte_hash_crc.
In addition, this revision brings a fallback mechanism to ensure that CRC32
hash is calculated regardless of hardware support from CPU (i.e. SSE4.2
intrinsics).
Summary of changes:
* added CRC32 software implementati
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