From ecf6547fdce39b3ec0f333c9b391b0f1c25deba5 Mon Sep 17 00:00:00 2001
From: Joshua Bakita <jbakita@cs.unc.edu>
Date: Sat, 17 Oct 2020 21:22:08 -0400
Subject: All the DIS runner scripts as used for the (rejected) RTSS'20
 submission

DANGER! There's an inconsistency in the input files used for the
all-pairs tests and those used for the baseline tests.

Baselines: run_all_dis.sh calls run_dis.sh to do all baselines.
All-pairs: Uses old TACLe script (not included here).
Cache allocation 2nd-order effects on SMT friendliness: run_pair_convexity.sh
---
 dis/run_dis.sh | 35 +++++++++++++++++++++++------------
 1 file changed, 23 insertions(+), 12 deletions(-)

(limited to 'dis/run_dis.sh')

diff --git a/dis/run_dis.sh b/dis/run_dis.sh
index 3e82bfb..78745ec 100755
--- a/dis/run_dis.sh
+++ b/dis/run_dis.sh
@@ -4,7 +4,7 @@ core=$1
 maxJobs=$2
 runID=$3
 benchmark=${4,}
-template_input=inputs/$4/in1
+template_input=inputs/$4/in0
 wss_settings=inputs/WSSS
 cache_settings=inputs/caches
 
@@ -36,7 +36,6 @@ echo "Done. Disabling real-time throttling..."
 echo -1 > /proc/sys/kernel/sched_rt_runtime_us
 echo "Done. Redirecting all interrupts to core 0..."
 
-# TODO: Make this cleaner
 # Redirect all interrupts to core 0
 i=0
 for IRQ in /proc/irq/*
@@ -44,27 +43,39 @@ do
     # Skip default_smp_affinity
     if [ -d $IRQ ]; then
         irqList[$i]=$(cat $IRQ/smp_affinity_list)
-        echo 0 > $IRQ/smp_affinity_list
+        echo 0 2> /dev/null > $IRQ/smp_affinity_list
     fi
     i=$(( $i + 1 ))
 done
-echo "Done. Beginning benchmarks..."
 
-# Setup cache control group
+echo "Done. Checking for wbinvd module..."
+if [[ ! -f "/proc/wbinvd" ]]; then
+    echo "ERROR: wbinvd module not loaded. Exiting..."
+    exit
+fi
+
+# Enable L3 isolation
+echo "Done. Enabling L3 isolation..."
 mount -t resctrl resctrl /sys/fs/resctrl
-mkdir /sys/fs/resctrl/benchmarks
-sleep 1 # Wait a second for the group to initialize
-echo $core > /sys/fs/resctrl/benchmarks/cpus_list
+mkdir -p /sys/fs/resctrl/benchmarks
+echo $1 > /sys/fs/resctrl/benchmarks/cpus_list
+# Reset global bandwith control and remove L3 from global
+echo "L3:0=ffff;1=ffff;2=ffff;3=0000" > /sys/fs/resctrl/schemata
+echo "MB:0=2048;1=2048;2=2048;3=2048" > /sys/fs/resctrl/schemata
+# Alloc L3 to benchmark
+echo "L3:0=0000;1=0000;2=0000;3=ffff" > /sys/fs/resctrl/benchmarks/schemata
+echo "MB:0=2048;1=2048;2=2048;3=2048" > /sys/fs/resctrl/benchmarks/schemata
+echo "Done. Beginning benchmarks..."
 
 # Execute the benchmark for each WSS and cache config
 while read j; do
     echo $j > /sys/fs/resctrl/benchmarks/schemata
     while read i; do
-        if grep -q "#define LITMUS 1" ../../baseline/source/extra.h; then
+        if grep -q "#define LITMUS 1" ../baseline/source/extra.h; then
             echo "Using LITMUS-RT!"
-            ./gen_input.py $benchmark $template_input $i | ./$benchmark $benchmark-$i-$j $maxJobs $core $runID 1
+            ./gen_input.py $benchmark $template_input $i | numactl -m 0 ./$benchmark $benchmark-$i-$j $maxJobs $core $runID 1
         else
-            ./gen_input.py $benchmark $template_input $i | chrt -r 97 taskset -c $core ./$benchmark $benchmark-$i-$j $maxJobs $core $runID 1
+            ./gen_input.py $benchmark $template_input $i | chrt -r 97 numactl -m 0 taskset -c $core ./$benchmark $benchmark-$i-$j $maxJobs $core $runID 1
         fi
     done < $wss_settings
 done < $cache_settings
@@ -74,7 +85,7 @@ i=0
 for IRQ in /proc/irq/*
 do
     if [ -d $IRQ ]; then
-        echo ${irqList[$i]} > $IRQ/smp_affinity_list
+        echo ${irqList[$i]} 2> /dev/null > $IRQ/smp_affinity_list
     fi
     i=$(( $i + 1 ))
 done
-- 
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