From: Andrew Rybchenko <arybchenko@solarflare.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH] net/sfc: reap Tx descriptors on transmit at least once
Date: Fri, 19 Jun 2020 11:25:23 +0100 [thread overview]
Message-ID: <1592562323-22694-1-git-send-email-arybchenko@solarflare.com> (raw)
Improve cache hit and increase packet rate on benchmarks.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
drivers/net/sfc/sfc_tweak.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/sfc/sfc_tweak.h b/drivers/net/sfc/sfc_tweak.h
index bd3de5313a..426e48f593 100644
--- a/drivers/net/sfc/sfc_tweak.h
+++ b/drivers/net/sfc/sfc_tweak.h
@@ -26,7 +26,7 @@
* this improves cache locality because the same mbufs may be used to send
* subsequent bursts in certain cases because of well-timed reap
*/
-#define SFC_TX_XMIT_PKTS_REAP_AT_LEAST_ONCE 0
+#define SFC_TX_XMIT_PKTS_REAP_AT_LEAST_ONCE 1
/** Default free threshold follows recommendations from DPDK documentation */
#define SFC_TX_DEFAULT_FREE_THRESH 32
--
2.17.1
next reply other threads:[~2020-06-19 10:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-19 10:25 Andrew Rybchenko [this message]
2020-06-22 8:43 ` Ferruh Yigit
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