TACLe and DIS benchmark fixes

- Use consistent approach to prevent computations from being
  optimized out in the DIS benchmarks
- Don't print results in the DIS benchmarks
- Fix a memory corruption in TACLe's "epic" benchmark reflect1()
- Fix return codes for all benchmarks
- Rename run_baseline.sh to run_bench.sh in preperation for this
  being the main benchmarking script

1 files changed, 156 insertions, 0 deletions

diff --git a/run_bench.sh b/run_bench.sh
new file mode 100755
index 0000000..c5b67b6
--- /dev/null
+++ b/run_bench.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+
+core=$1
+maxJobs=$2
+userRunID=$3
+tacleNames=tacleNames.txt
+
+if [ $# -lt 3 ]; then
+    echo "Usage $0 <core ID> <number of iterations> <run ID> [TACLe names file] [--contend]"
+    exit
+fi
+
+if [ $# -gt 3 ]; then
+    echo "Using alternate list of TACLe benchmarks from $4"
+    tacleNames=$4
+fi
+
+if [ "$EUID" -ne 0 ]
+then
+    echo "You need to be root to enable interrupt isolation and real-time execution!"
+    exit
+fi
+
+echo "Making sure that binaries are up to date..."
+while read i; do
+    make bin/$i
+done < $tacleNames
+echo "Done. Disabling real-time throttling..."
+
+# Turn off rt throttling
+echo -1 > /proc/sys/kernel/sched_rt_runtime_us
+echo "Done. Redirecting all interrupts to core 0..."
+
+# Redirect all interrupts to core 0
+i=0
+for IRQ in /proc/irq/*
+do
+    # Skip default_smp_affinity
+    if [ -d $IRQ ]; then
+        irqList[$i]=$(cat $IRQ/smp_affinity_list)
+        echo 0 2> /dev/null > $IRQ/smp_affinity_list
+    fi
+    i=$(( $i + 1 ))
+done
+
+# Read the names of each benchmark
+j=0
+while read i; do
+    tacleProg[$j]=$i
+    j=$(( $j + 1 ))
+done < $tacleNames
+
+echo "Done. Checking for wbinvd module..."
+if [[ ! -f "/proc/wbinvd" ]]; then
+    echo "ERROR: wbinvd module not loaded. Exiting..."
+    exit
+fi
+
+echo "Done. Setting cores $firstCore and $secondCore to 'performance'..."
+echo "performance" > /sys/devices/system/cpu/cpu15/cpufreq/scaling_governor
+echo "performance" > /sys/devices/system/cpu/cpu31/cpufreq/scaling_governo
+
+# Enable L3 isolation
+echo "Done. Enabling L3 isolation..."
+mount -t resctrl resctrl /sys/fs/resctrl
+mkdir -p /sys/fs/resctrl/benchmarks
+echo $1 > /sys/fs/resctrl/benchmarks/cpus_list
+# Reset global bandwith control and remove L3 from global
+echo "L3:0=ffff;1=ffff;2=ffff;3=0000" > /sys/fs/resctrl/schemata
+echo "MB:0=2048;1=2048;2=2048;3=2048" > /sys/fs/resctrl/schemata
+# Alloc L3 to benchmark
+echo "L3:0=0000;1=0000;2=0000;3=ffff" > /sys/fs/resctrl/benchmarks/schemata
+echo "MB:0=2048;1=2048;2=2048;3=2048" > /sys/fs/resctrl/benchmarks/schemata
+echo "Done. Verifying configuration with user..."
+
+# Generate file name string
+# We append to this as we parse the environment settings
+runID=$(date +"%b%d-%H")
+
+# Confirm configuration with user
+echo "=== Global Config ==="
+cat /sys/fs/resctrl/schemata
+echo "=== Core $1 Config ==="
+cat /sys/fs/resctrl/benchmarks/schemata
+if [[ $5 == "--contend" ]]; then
+    if [[ ! -f "/playpen/mc2/imx6q-thrasher/thrasher" ]]; then
+        echo "ERROR: thrasher binary not fonud. Exiting..."
+        exit
+    fi
+    echo "Will run 6 contending tasks"
+    runID=$runID-c
+else
+    runID=$runID-xc
+fi
+if uname -a | grep -q "mc2"; then
+    echo "MC^2 Autodetected. Cache coloring and interleaving will be enabled."
+    runID=$runID-i
+else
+    echo "MC^2 not detected."
+    runID=$runID-xi
+fi
+if pwd | grep -qi dis; then
+    echo "Autodetected DIS. Will use script-level looping."
+fi
+echo "Results will be saved as $runID-$userRunID.txt"
+echo "Press enter to confirm environment, Ctrl-C to exit..."
+read
+
+# Start contending tasks
+if [[ $5 == "--contend" ]]; then
+    echo "Done. Starting 6 contending tasks..."
+    # Run two contending tasks on each other CCX
+    taskset -c 1 /playpen/mc2/imx6q-thrasher/thrasher &
+    taskset -c 2 /playpen/mc2/imx6q-thrasher/thrasher &
+    taskset -c 5 /playpen/mc2/imx6q-thrasher/thrasher &
+    taskset -c 6 /playpen/mc2/imx6q-thrasher/thrasher &
+    taskset -c 9 /playpen/mc2/imx6q-thrasher/thrasher &
+    taskset -c 10 /playpen/mc2/imx6q-thrasher/thrasher &
+fi
+sleep 1 # Wait for contending tasks to start
+echo "Done. Beginning benchmarks..."
+
+num_tests=$(wc -l < $tacleNames)
+for (( i = 0; i < $num_tests ; i++ ))
+do
+    # If using DIS, we have to iterate in the script as DIS won't do it for us
+    pwd | grep -qi dis
+    iters=$(python3 -c "print(int(not "$?")*("$maxJobs"-1))")
+    for ((k=0;k<=iters;k++)); do
+        # Check if we're using LITMUS^RT or not
+        if [[ -f source/extra.h ]] && grep -q "#define LITMUS 1" source/extra.h; then
+            ./bin/${tacleProg[$i]} ${tacleProg[$i]} $maxJobs $core $runID-$userRunID 1
+        else
+            # Interleave memory allocations between all nodes (only 1 node w/out MC^2)
+            chrt -r 97 numactl --interleave=all taskset -c $core ./bin/${tacleProg[$i]} ${tacleProg[$i]} $maxJobs $core $runID-$userRunID 1
+#chrt -r 97 numactl -m 0 taskset -c $core ./bin/${tacleProg[$i]} ${tacleProg[$i]} $maxJobs $core $runID-$userRunID-NOINTERLEAVE 1
+        fi
+    done
+    echo COMPLETE: ${tacleProg[$i]}
+done
+
+# End contending tasks
+if [[ $5 == "--contend" ]]; then
+    killall thrasher
+fi
+
+# Put smp_affinty back the way it was
+i=0
+for IRQ in /proc/irq/*
+do
+    if [ -d $IRQ ]; then
+        echo ${irqList[$i]} 2> /dev/null > $IRQ/smp_affinity_list
+    fi
+    i=$(( $i + 1 ))
+done
+