Re: comparison of the AF_ALG interface with the /dev/crypto

[Herbert Xu]

Phil Sutter <phil@xxxxxx> wrote:
> 
> chunksize       af_alg          cryptodev       (100 * cryptodev / af_alg)
> --------------------------------------------------------------------------
> 512              4.169 MB/s      7.113 MB/s     171 %
> 1024             7.904 MB/s     12.957 MB/s     164 %
> 2048            13.163 MB/s     19.683 MB/s     150 %
> 4096            20.218 MB/s     26.960 MB/s     133 %
> 8192            27.539 MB/s     34.373 MB/s     125 %
> 16384           33.730 MB/s     39.997 MB/s     119 %
> 32768           37.399 MB/s     42.727 MB/s     114 %
> 65536           40.004 MB/s     44.660 MB/s     112 %

Are you maxing out your submission CPU? If not then you're testing
the latency of the interface, as opposed to the throughput.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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