Hi, Konstantin & WenZhuo The ixgbe kernel driver supports DCA (Direct Cache Access) mode to improve IO performance on IA. [ixgbe: Add optional DCA infrastructure<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bd0362dde080cef377d99fa5beb5c25308c29c73>] DPDK ixgbe PMD contains some DCA flags in the header files but has no implementation on this mechanism. https://git.dpdk.org/dpdk/tree/drivers/net/ixgbe/base/ixgbe_type.h [at line 1470]
So why DCA feature got removed in ixgbe PMD? Is it replaced by any other L2 cache warm technology on x86 DPDK? Thanks in advance. Best Regards, Phil Yang
