From 4eb84e9ec0a4497e89e9d9636b0c21d2202bc85b Mon Sep 17 00:00:00 2001
From: "ithink.chan" <chenyang@autoai.com>
Date: Mon, 23 Dec 2019 15:11:40 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E4=BB=A5=E5=A4=AA=E7=BD=91?=
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Signed-off-by: ithink.chan <chenyang@autoai.com>
---
 Software/Applications/IPerf/IPerf_使用说明.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Software/Applications/IPerf/IPerf_使用说明.md b/Software/Applications/IPerf/IPerf_使用说明.md
index 545d45d..40a9b98 100644
--- a/Software/Applications/IPerf/IPerf_使用说明.md
+++ b/Software/Applications/IPerf/IPerf_使用说明.md
@@ -40,6 +40,17 @@ iperf3 -s -p <port>
 iperf3 -u -c <host> -p <port> -i <interval> -t <time> -P <parallel>
 ```
 
+## 以太网缓存
+
+有时候 UDP 丢包率高，可能是因为缓存设置参数不够优化，Linux 下修改
+
+```sh
+echo 21299200 > /proc/sys/net/core/rmem_default
+echo 21299200 > /proc/sys/net/core/rmem_max
+```
+
+两个文件来修改以太网缓存参数。
+
 ## 基本参数说明
 
 | Options     | Description                                                        |