<div dir="auto">Hi,<div dir="auto"><br></div><div dir="auto"><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)">Does DPDK support to free the transmitted buffers to external cache which is provided during tx queue configurations (rte_eth_tx_queue_setup).</p><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)">This is needed to extract better performance when multiple tx queues are being worked on by unregistered non-eal pthreads which sends the packets (mbuf from common rte_mempool) to the queue parallelly using rte_eth_tx_burst. </p><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)">Otherwise, they are bypassed frim local cache and go to the path of CAS operation on the common pool for free operation.</p><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)">Or is there any other way to achieve this?</p><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)"><br></p><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)">Thanks</p><p style="margin:0px 0px 1.1em;padding:0px;border:0px;line-height:inherit;font-family:-apple-system,blinkmacsystemfont,"segoe ui adjusted","segoe ui","liberation sans",sans-serif;font-size:19.9286px;vertical-align:baseline;color:rgb(12,13,14);background-color:rgb(255,255,255)">Syed</p></div></div>