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From: "Ling, WeiX" <weix.ling@intel.com>
To: "Wang, YuanX" <yuanx.wang@intel.com>,
	"maxime.coquelin@redhat.com" <maxime.coquelin@redhat.com>,
	"Xia, Chenbo" <chenbo.xia@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, "Hu, Jiayu" <jiayu.hu@intel.com>,
	"He, Xingguang" <xingguang.he@intel.com>,
	"stable@dpdk.org" <stable@dpdk.org>
Subject: RE: [PATCH] examples/vhost: Fix retry logic on Rx
Date: Thu, 26 May 2022 09:30:47 +0000	[thread overview]
Message-ID: <PH7PR11MB600665E88258AAAC18018876EED99@PH7PR11MB6006.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20220518162505.1691401-1-yuanx.wang@intel.com>

> -----Original Message-----
> From: Wang, YuanX <yuanx.wang@intel.com>
> Sent: Thursday, May 19, 2022 12:25 AM
> To: maxime.coquelin@redhat.com; Xia, Chenbo <chenbo.xia@intel.com>
> Cc: dev@dpdk.org; Hu, Jiayu <jiayu.hu@intel.com>; He, Xingguang
> <xingguang.he@intel.com>; Ling, WeiX <weix.ling@intel.com>; Wang, YuanX
> <yuanx.wang@intel.com>; stable@dpdk.org
> Subject: [PATCH] examples/vhost: Fix retry logic on Rx
> 
> drain_eth_rx() uses rte_vhost_avail_entries() to calculate the available
> entries to determine if a retry is required.
> However, this function only works with split rings, and calculating packed
> rings will return the wrong value and cause unnecessary retries resulting in a
> significant performance penalty.
> 
> This patch uses the difference between tx burst and rx burst as a retry
> condition, and introduces enqueue_pkts() to reduce code duplication.
> 
> Fixes: 4ecf22e356 ("vhost: export device id as the interface to applications")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Yuan Wang <yuanx.wang@intel.com>
> ---

Tested-by: Wei Ling <weix.ling@intel.com>

  reply	other threads:[~2022-05-26  9:31 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-18 16:25 Yuan Wang
2022-05-26  9:30 ` Ling, WeiX [this message]
2022-06-17  7:01 ` [PATCH v2] examples/vhost: fix retry logic on eth rx path Yuan Wang
2022-06-20  3:20   ` Xia, Chenbo
2022-06-20  7:36     ` David Marchand
2022-06-20  7:49       ` Xia, Chenbo
2022-06-20  8:59         ` Hu, Jiayu
2022-06-20  9:09           ` Xia, Chenbo
2022-06-20  9:19             ` Wang, YuanX
2022-06-20  9:33               ` Xia, Chenbo
2022-06-20  9:42             ` Hu, Jiayu
2022-06-21 13:34   ` Xia, Chenbo
2022-06-22  2:26     ` Wang, YuanX
2022-06-22  6:27 ` [PATCH v3] " Yuan Wang
2022-06-22  7:23   ` Maxime Coquelin
2022-06-22  8:50     ` Wang, YuanX
2022-06-22  9:25 ` [PATCH v4] " Yuan Wang
2022-06-23  2:57   ` Xia, Chenbo
2022-06-23  7:20   ` Ling, WeiX
2022-07-01 13:57   ` Maxime Coquelin

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