* SmartShare Systems DPDK v22.11 roadmap
@ 2022-09-03 11:09 Morten Brørup
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From: Morten Brørup @ 2022-09-03 11:09 UTC (permalink / raw)
To: dev, Thomas Monjalon
SmartShare Systems DPDK v22.11 roadmap
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Non-temporal memory copy
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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 RFC and discussion:
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
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2022-09-03 11:09 SmartShare Systems DPDK v22.11 roadmap Morten Brørup
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