netdev - [PATCH 4/5] VSOCK: modify default rx buf size to improve performance

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Message-ID: <5BDFF5A3.9000806@huawei.com>
Date:   Mon, 5 Nov 2018 15:47:47 +0800
From:   jiangyiwen <jiangyiwen@...wei.com>
To:     <stefanha@...hat.com>, Jason Wang <jasowang@...hat.com>
CC:     <netdev@...r.kernel.org>, <kvm@...r.kernel.org>,
        <virtualization@...ts.linux-foundation.org>
Subject: [PATCH 4/5] VSOCK: modify default rx buf size to improve performance

Since VSOCK already support mergeable rx buffer, so it can
implement the balance with performance and guest memory,
we can increase the default rx buffer size to improve
performance.

Signed-off-by: Yiwen Jiang <jiangyiwen@...wei.com>
---
 include/linux/virtio_vsock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index 6be3cd7..594e720 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -10,7 +10,7 @@
 #define VIRTIO_VSOCK_DEFAULT_MIN_BUF_SIZE	128
 #define VIRTIO_VSOCK_DEFAULT_BUF_SIZE		(1024 * 256)
 #define VIRTIO_VSOCK_DEFAULT_MAX_BUF_SIZE	(1024 * 256)
-#define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE	(1024 * 4)
+#define VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE	(1024 * 64)
 #define VIRTIO_VSOCK_MAX_BUF_SIZE		0xFFFFFFFFUL
 #define VIRTIO_VSOCK_MAX_PKT_BUF_SIZE		(1024 * 64)
 /* virtio_vsock_pkt + max_pkt_len(default MAX_PKT_BUF_SIZE) */
-- 
1.8.3.1