On Wed, 2014-05-28 at 23:26 -0400, George Spelvin wrote:
> > Can you do a tcrypt speed measurement with and without your changes?
> > Check to see if there's any slowdown. Please make sure you pin
> > the frequency of your cpu when running the test.
> >
> > e.g.
> > echo performance > /sys/devi
> Can you do a tcrypt speed measurement with and without your changes?
> Check to see if there's any slowdown. Please make sure you pin
> the frequency of your cpu when running the test.
>
> e.g.
> echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
I just now re-read your
> Can you do a tcrypt speed measurement with and without your changes?
> Check to see if there's any slowdown. Please make sure you pin
> the frequency of your cpu when running the test.
Sure thing; I was already inspired to do that based on your concerns.
Do you have any particular buffer size
On Wed, 2014-05-28 at 18:15 -0400, George Spelvin wrote:
> crypto: crc32c-pclmul - Shrink K_table to 32-bit words
>
> There's no need for the K_table to be made of 64-bit words. For some
> reason, the original authors didn't fully reduce the values modulo the
> CRC32C polynomial, and so had some
crypto: crc32c-pclmul - Shrink K_table to 32-bit words
There's no need for the K_table to be made of 64-bit words. For some
reason, the original authors didn't fully reduce the values modulo the
CRC32C polynomial, and so had some 33-bit number in there. They
can all be reduced to 32 bits.
Doing
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