Re: [PATCH] Performance Improvement in CRC16 Calculations.

On Sat, 2018-08-11 at 02:04 -0700, Joe Perches wrote:

On Fri, 2018-08-10 at 22:39 -0400, Douglas Gilbert wrote:

quoted

but below is a copy and paste of a table 27 from draft SBC-4
revision 15 in chapter 4.22.4.4 on page 87.

The posted code returns the proper crc for each
CONFIG_CRYPTO_CRCT10DIF_TABLE_SIZE value from
1 to 5 for these arrays.

Jeff, could you please test the suggested patch
with your comparison framework again with each
CONFIG_CRYPTO_CRCT10DIF_TABLE_SIZE from 1 to 5?

I get on a very limited test framework here:
(runtime average of 10 runs)

1: 4.32
2: 1.86
3: 1.31
4: 1.05
5: 0.99