From: Nathan Binkert <binkertn@umich.edu>
Date: Wed, 11 Aug 2004 14:17:11 +0000 (-0400)
Subject: commented script with various kernel parameter tweaks for better
X-Git-Tag: m5_1.0_tutorial~195
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e3d0e9cf769f0a1876bc2bfe61b5417d06a2da1b;p=gem5.git

commented script with various kernel parameter tweaks for better
network performance

--HG--
extra : convert_revision : 9fd2f18a0d2b79942661d764d90177a50754d9c0
---

diff --git a/configs/boot/setup b/configs/boot/setup
new file mode 100644
index 000000000..842e50a4a
--- /dev/null
+++ b/configs/boot/setup
@@ -0,0 +1,37 @@
+ifconfig eth1 mtu 9000 txqueuelen 1000 up
+
+### IPV4 specific settings
+# turns TCP timestamp support off, default 1, reduces CPU use
+echo "0" > /proc/sys/net/ipv4/tcp_timestamps
+
+# turn SACK support off, default on
+echo "0" > /proc/sys/net/ipv4/tcp_sack
+
+# sets min/default/max TCP read buffer, default 4096 87380 174760
+echo "10000000 10000000 10000000" > /proc/sys/net/ipv4/tcp_rmem
+
+# sets min/pressure/max TCP write buffer, default 4096 16384 131072
+echo "10000000 10000000 10000000" > /proc/sys/net/ipv4/tcp_wmem
+
+# sets min/pressure/max TCP buffer space, default 31744 32256 32768
+echo "10000000 10000000 10000000" > /proc/sys/net/ipv4/tcp_mem
+
+### CORE settings (mostly for socket and UDP effect)
+# maximum receive socket buffer size, default 131071
+echo "524287" > /proc/sys/net/core/rmem_max
+
+# maximum send socket buffer size, default 131071
+echo "524287" > /proc/sys/net/core/wmem_max
+
+# default receive socket buffer size, default 65535
+echo "524287" > /proc/sys/net/core/rmem_default
+
+# default send socket buffer size, default 65535
+echo "524287" > /proc/sys/net/core/wmem_default
+
+# maximum amount of option memory buffers, default 10240
+echo "524287" > /proc/sys/net/core/optmem_max
+
+# number of unprocessed input packets before kernel starts dropping them,
+# default 300
+echo "300000" > /proc/sys/net/core/netdev_max_backlog