[dm-crypt] Mutithread Support

Milan Broz gmazyland at gmail.com
Tue Feb 20 06:04:36 CET 2018


On 02/20/2018 12:08 AM, Doug Meyer wrote:
> Does dm-crypt support multithreading.  Have found sites stating yes,
> but the configuration is unclear.  Contacted Redhat, they linked to a
> 6-yr old post saying no despite the newer posts.

Yes (if the question is if dm-crypt uses all cores while enrypting IOs).

For RHEL it depends: for RHEL6 there is only parallel processing if it is submitted
from different processes, for RHEL7 it is the same as upstream (dm-crypt
uses all cores).

What 6-year old post you mean? (If it is RHEL6, then it is perhaps correct.)

Milan


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