From a91bf296d73bccb57aeea037639ae68567dd6c92 Mon Sep 17 00:00:00 2001
From: Trent Nelson <trent@solana.com>
Date: Wed, 6 Nov 2019 09:48:45 -0700
Subject: [PATCH] Add some addition packages to DC installer scripts (#6755)

* Add 'cmake' to default DC node installer

* Add 'sysstat' to default DC node installer

For 'iostat'

* Add 'perf' to default DC node installer

* Add 'iftop' to default DC node installer
---
 net/datacenter-node-install/setup-dc-node-1.sh    | 10 +++++++++-
 net/datacenter-node-install/setup-procfs-knobs.sh |  3 +++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/net/datacenter-node-install/setup-dc-node-1.sh b/net/datacenter-node-install/setup-dc-node-1.sh
index 7dc91ca6b..1c51e7b0b 100644
--- a/net/datacenter-node-install/setup-dc-node-1.sh
+++ b/net/datacenter-node-install/setup-dc-node-1.sh
@@ -23,7 +23,15 @@ set -xe
 
 apt update
 apt upgrade -y
-apt install -y build-essential pkg-config clang
+
+cat >/etc/apt/apt.conf.d/99-solana <<'EOF'
+// Set and persist extra caps on iftop binary
+Dpkg::Post-Invoke { "which iftop 2>&1 >/dev/null && setcap cap_net_raw=eip $(which iftop) || true"; };
+EOF
+
+apt install -y build-essential pkg-config clang cmake sysstat perf \
+  linux-generic-hwe-18.04-edge linux-tools-generic-hwe-18.04-edge \
+  iftop
 
 "$HERE"/../scripts/install-docker.sh
 usermod -aG docker "$SETUP_USER"
diff --git a/net/datacenter-node-install/setup-procfs-knobs.sh b/net/datacenter-node-install/setup-procfs-knobs.sh
index bc2089b94..725e68159 100644
--- a/net/datacenter-node-install/setup-procfs-knobs.sh
+++ b/net/datacenter-node-install/setup-procfs-knobs.sh
@@ -18,5 +18,8 @@ net.core.wmem_max=134217728
 
 # Solana earlyoom setup
 kernel.sysrq=$(( $(cat /proc/sys/kernel/sysrq) | 64 ))
+
+# Allow kernel and CPU perf events
+kernel.perf_event_paranoid=0
 EOF