[Libre-soc-dev] [OT-ish] POWER9 gzip hardware support

Luke Kenneth Casson Leighton lkcl at lkcl.net
Wed Nov 18 13:41:32 GMT 2020


On 11/18/20, Lauri Kasanen <cand at gmx.com> wrote:
> On Wed, 18 Nov 2020 11:17:07 +0000
> Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:
>
>> https://twitter.com/carlosedp/status/1328424799216021511
>>
>> 10 years and a speedup from 23s to 0.094s on gzip has finally made it
>> into the linux ppc64 kernel.
>
> Slightly related, I was told by an IBM rep that the crypto accelerator
> in the same chip is not recommended for use. While it has great
> throughput, it's off chip and its latency is high, plus it's BE

interesting.  they might mean, it's a multi-chip module i.e. the
crypto accelerator is a separate die, under the same package.

l.



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