From 7fc18c1796fa3f632b836189266c1dcf55d951c7 Mon Sep 17 00:00:00 2001
From: Evan Vigil-McClanahan <evan@helium.com>
Date: Wed, 10 Apr 2019 08:34:33 -0700
Subject: [PATCH] add some CPU usage and thread-pinning tunings to try and
 reduce CPU

---
 config/vm.args | 11 +++++++++++
 priv/plot.gpt  | 10 ++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/config/vm.args b/config/vm.args
index 63105bb07..cfee37c91 100644
--- a/config/vm.args
+++ b/config/vm.args
@@ -7,3 +7,14 @@
 ## we are time warp safe
 +c true
 +C multi_time_warp
+
+# don't steal CPU from other processes
++sbwt very_short
++sbwtdio none
++sbwtdcpu none
+
+# pin schedulers to threads
++stbt db
+
+# disable load compaction, try to evenly load CPUs
++sub true
diff --git a/priv/plot.gpt b/priv/plot.gpt
index 206340c5b..974b28c58 100644
--- a/priv/plot.gpt
+++ b/priv/plot.gpt
@@ -1,6 +1,12 @@
 set xdata time
 set timefmt "%s"
-set xrange [time(0) - 24*60*60:]
+
+if (!exists("interval")) interval=12
+
+set xrange [time(0) - interval*60*60:time(0)]
+set yrange [0:500]
+
+
 #set term x11 1 noraise
 set term qt noraise
 
@@ -8,7 +14,7 @@ plot "/tmp/miner-chain-stats" using 1:2 with lines title "interval", \
      "/tmp/miner-chain-stats" using 1:3 with lines title "txns", \
      "/tmp/miner-chain-stats" using 1:4 with lines title "avg interval", \
      "/tmp/miner-chain-stats" using 1:5 with lines title "median interval", \
-     "/tmp/miner-chain-stats" using 1:6 with lines title "avg txns", 
+     "/tmp/miner-chain-stats" using 1:6 with lines title "avg txns"
 
 pause 15
 reread