SmartShare Systems DPDK 23.03 roadmap

SmartShare Systems DPDK 23.03 roadmap

[Morten Brørup]

mempool cache zero-copy get/put bulk
------------------------------------
Zero-copy access to mempool caches is beneficial for PMD performance, and
must be provided by the mempool library to fix [Bug 1052] without a
performance regression.

[Bug 1052]: https://bugs.dpdk.org/show_bug.cgi?id=1052

Refer to patch v2 and RFC discussions:
http://inbox.dpdk.org/dev/20221116180419.98937-1-mb@smartsharesystems.com/
http://inbox.dpdk.org/dev/98CBD80474FA8B44BF855DF32C47DC35D87489@smartserver.smartshare.dk/


Non-temporal memory copy
------------------------
The primary purpose of this feature is to avoid polluting the CPU's data
cache when copying packets using the CPU, e.g. when capturing packets.

E.g. copying a 32 packet burst of 1514 B packets reads 48 KB and writes
48 KB, and thus pollutes the entire L1 cache of a typical x86 CPU core
with 64 KB data cache.

The API for this feature is generic, but we will initially only implement
the feature for x86 architecture. This implementation can be used as
inspiration for implementations for other architectures.

Refer to patch v4 and RFC discussions:
http://inbox.dpdk.org/dev/20221010064600.16495-1-mb@smartsharesystems.com/
http://inbox.dpdk.org/dev/98CBD80474FA8B44BF855DF32C47DC35D871D4@smartserver.smartshare.dk/
http://inbox.dpdk.org/dev/98CBD80474FA8B44BF855DF32C47DC35D8728A@smartserver.smartshare.dk/


Med venlig hilsen / Kind regards,
-Morten Brørup