From 3b0aa125061b362b23ecf66afe8319e3a268c874 Mon Sep 17 00:00:00 2001 From: Joshua Bakita Date: Thu, 22 Oct 2020 00:08:12 -0400 Subject: Add pair benchmarking and isolation specification into run_bench.sh This allows `run_bench.sh` to replace all previous general paired benchmarking scripts. See `run_everything.sh` for an example of how to use the new script. This also fixes two critical bugs present in the old scripts: 1. The cpus_list was incorrectly set for resctrl when running synchronous pair timing with L2+L3 isolation (i). Each write to that file replaces the previous contents, and it was previously written once for each core. This prevented the entire 1st core from using any L3 cache. 2. The competing task list was indexed improperly in the asynchronous pair timing script. This caused the competing task to always be identical to the task being profiled. These issues combine to imply that in the rejected RTSS'20 paper: - All Level-C SMT timing data is suspect - Level-A and -B SMT timing data with L2+L3 isolation (i) is wildly optimistic --- baseline/run_baseline_L3_ONLY.sh | 152 --------------------------------------- baseline/tacleNames.txt | 18 +++-- 2 files changed, 11 insertions(+), 159 deletions(-) delete mode 100755 baseline/run_baseline_L3_ONLY.sh (limited to 'baseline') diff --git a/baseline/run_baseline_L3_ONLY.sh b/baseline/run_baseline_L3_ONLY.sh deleted file mode 100755 index 4183653..0000000 --- a/baseline/run_baseline_L3_ONLY.sh +++ /dev/null @@ -1,152 +0,0 @@ -#!/bin/bash - -core=$1 -maxJobs=$2 -userRunID=$3 -tacleNames=tacleNames.txt - -if [ $# -lt 3 ]; then - echo "Usage $0 [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 - -# Enable L3 isolation -echo "Done. Enabling L3 isolation..." -mount -t resctrl resctrl /sys/fs/resctrl -mkdir -p /sys/fs/resctrl/benchmarks -echo $1 > /sys/fs/resctrl/benchmarks/cpus_list -# Reset global bandwith control and remove L3 from global -echo "L3:0=ffff;1=ffff;2=ffff;3=0000" > /sys/fs/resctrl/schemata -echo "MB:0=2048;1=2048;2=2048;3=2048" > /sys/fs/resctrl/schemata -# Alloc L3 to benchmark -echo "L3:0=0000;1=0000;2=0000;3=00ff" > /sys/fs/resctrl/benchmarks/schemata -echo "MB:0=2048;1=2048;2=2048;3=2048" > /sys/fs/resctrl/benchmarks/schemata -echo "Done. Verifying configuration with user..." - -# Generate file name string -# We append to this as we parse the environment settings -runID=$(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/cpus_list -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=$runID-xc -fi -if uname -a | grep -q "mc2"; then - echo "MC^2 Autodetected. NOT SUPPORTED. Exiting..." - exit -else - echo "MC^2 not detected. 50% L3 allocation enabled." - runID=$runID-i3 -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 - 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 - diff --git a/baseline/tacleNames.txt b/baseline/tacleNames.txt index 8f4845a..2e02966 100644 --- a/baseline/tacleNames.txt +++ b/baseline/tacleNames.txt @@ -1,19 +1,23 @@ petrinet -ndes statemate -adpcm_dec +ndes +h264_dec +huff_dec cjpeg_wrbmp +fmref +audiobeam +adpcm_dec adpcm_enc +g723_enc +huff_enc +gsm_dec cjpeg_transupp -dijkstra epic -fmref -gsm_dec -h264_dec -huff_enc +anagram rijndael_enc rijndael_dec gsm_enc susan +dijkstra ammunition mpeg2 -- cgit v1.2.2