Re: [linux-next:master] [crypto] bb897c5504: stress-ng.af-alg.ops_per_sec -8.0% regression

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



hi, Stephan,

On Fri, Jun 09, 2023 at 01:57:27PM +0200, Stephan Mueller wrote:
> Am Freitag, 9. Juni 2023, 10:02:32 CEST schrieb kernel test robot:
> 
> Hi,
> 
> > Hello,
> > 
> > kernel test robot noticed a -8.0% regression of stress-ng.af-alg.ops_per_sec
> > on:
> > 
> > 
> > commit: bb897c55042e9330bcf88b4b13cbdd6f9fabdd5e ("crypto: jitter - replace
> > LFSR with SHA3-256")
> > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> > 
> > testcase: stress-ng
> > test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @
> > 3.00GHz (Cascade Lake) with 128G memory parameters:
> 
> Thank you for the report, but this change in performance is expected to ensure 
> proper entropy collection. I assume that the jitterentropy_rng is queried via 
> AF_ALG. Considering that the amount of data to be generated (and thus the 
> effect of the performance degradation) is small, there should be no noticeable 
> impact on users.

got it. Thanks a lot for information!

> 
> Ciao
> Stephan
> 
> 




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux