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https://github.com/cirosantilli/linux-kernel-module-cheat.git
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lkmc v2-rc
Unsquashed version at v2-rc-unsquashed, but that cannot be merged as it breaks bisects at several points. All bugs will not bisect to this humongous change. It all started with a conversion of the Bash scripts to Python, mainly because I couldn't stand not being able to properly use --options for run which has a million options. Then since that required a full testing, I decided to do all the refactorings that I had in mind at once, and so I did and it became v2-rc. This is the largest patch I have ever done! OMG a few weeks of extra time. I'm never writing a Bash script for anything that starts getting big again. Some of the features are: * separate build-qemu and build-gem5 commands * common: convert scripts to python. Add --option for everything * rename build to build-buildroot now that we are splitting all the build commands, Linux kernel to follow * move all git submodules to submodules/ and all buildroot packages to packages/ * refactor the out/ structure. Keep projects on toplevel, because guest projects separate archs and host ones don't, making a toplevel arch wrong * do-release: rename to just release https://stackoverflow.com/questions/16174992/cant-get-argparse-to-read-quoted-string-with-dashes-in-it * run: add --terminal and explain gem5 pdb * just track the lvimrc * store CLI kernel config fragment inside buildlroot to avoid conflicts * gem5: document m5 initparam * readme: make a bunch of things awesomer * readme: fix broken refs * parsec-benchmark: update to 75d55ac446a43c47efb1044844a108c6c330184c Could not fetch otherwise. * gem5: M5_OVERRIDE_PY_SOURCE
This commit is contained in:
Ciro Santilli
@@ -1,72 +1,72 @@
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#!/usr/bin/env bash
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. "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common"
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common_gem5=true
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set -eu
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root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
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generate_checkpoints=true
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while getopts "C${common_getopts_flags}" OPT; do
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while getopts "C" OPT; do
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case "$OPT" in
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C)
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generate_checkpoints=false
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;;
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?)
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common_getopts_case "$OPT"
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exit 2;
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;;
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esac
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done
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shift "$(($OPTIND - 1))"
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common_setup
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common_opts="--gem5 $@"
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# Vars
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cmd="./run -a ${common_arch} -g"
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cmd="./run ${common_opts}"
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cache_small='--caches --l2cache --l1d_size=1024 --l1i_size=1024 --l2_size=1024 --l3_size=1024 '
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cache_large='--caches --l2cache --l1d_size=1024kB --l1i_size=1024kB --l2_size=1024kB --l3_size=1024kB'
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results_file="${common_gem5_run_dir}/bench-cache.txt"
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results_file="$(${root_dir}/getvar ${common_opts} run_dir)/bench-cache.txt"
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bench() (
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common_bench_cmd "$1" "$results_file"
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"${root_dir}/bench-cmd" "$1"
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{
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printf 'cycles '
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./gem5-stat -a "$common_arch"
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./gem5-stat ${common_opts}
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printf 'instructions '
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./gem5-stat -a "$common_arch" sim_insts
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./gem5-stat ${common_opts} sim_insts
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# RESTORE_INVESTIGATION
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#cycles_switch="$(./gem5-stat -a "$common_arch" system.switch_cpus.numCycles)"
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#cycles_switch="$(./gem5-stat ${common_opts} system.switch_cpus.numCycles)"
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#if [ -n "$cycles_switch" ]; then
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# printf "cycles_switch ${cycles_switch}\n"
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#fi
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printf "\n"
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} >> "$results_file"
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)
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bench-all() (
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bench "${cmd} -l 1 -- ${cache_small} --cpu-type=HPI --restore-with-cpu=HPI"
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bench "${cmd} -l 1 -- ${cache_large} --cpu-type=HPI --restore-with-cpu=HPI"
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bench "${cmd} --gem5-readfile \"$1\" --gem5-restore 1 -- ${cache_small} --cpu-type=HPI --restore-with-cpu=HPI"
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bench "${cmd} --gem5-readfile \"$1\" --gem5-restore 1 -- ${cache_large} --cpu-type=HPI --restore-with-cpu=HPI"
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# RESTORE_INVESTIGATION
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# These were mostly to investigate what happens on restore:
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# https://stackoverflow.com/questions/49011096/how-to-switch-cpu-models-in-gem5-after-restoring-a-checkpoint-and-then-observe-t
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#bench "${cmd} -l 1"
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#bench "${cmd} -l 1 -- ${cache_small}"
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#bench "${cmd} -l 1 -- ${cache_large}"
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#bench "${cmd} -l 2 -- ${cache_small}"
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#bench "${cmd} -l 3 -- ${cache_large}"
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#bench "${cmd} -l 4 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} -l 5 -- ${cache_large} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 1"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 1 -- ${cache_small}"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 1 -- ${cache_large}"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 2 -- ${cache_small}"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 3 -- ${cache_large}"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 4 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 5 -- ${cache_large} --cpu-type=HPI"
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## Restore from At-- omicSimpleCPU to HPI.
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#bench "${cmd} -l 2 -- ${cache_small} --cpu-type=HPI --restore-with-cpu=HPI"
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#bench "${cmd} -l 3 -- ${cache_large} --cpu-type=HPI --restore-with-cpu=HPI"
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#bench "${cmd} -l 2 -- ${cache_small} --restore-with-cpu=HPI"
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#bench "${cmd} -l 3 -- ${cache_large} --restore-with-cpu=HPI"
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#bench "${cmd} -l 2 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} -l 3 -- ${cache_large} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 2 -- ${cache_small} --cpu-type=HPI --restore-with-cpu=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 3 -- ${cache_large} --cpu-type=HPI --restore-with-cpu=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 2 -- ${cache_small} --restore-with-cpu=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 3 -- ${cache_large} --restore-with-cpu=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 2 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 3 -- ${cache_large} --cpu-type=HPI"
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## Restore HPI with different cache sizes and see if it is used.
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#bench "${cmd} -l 4 -- ${cache_large} --cpu-type=HPI"
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#bench "${cmd} -l 5 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} -l 2 -- ${cache_large} --cpu-type=HPI"
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#bench "${cmd} -l 3 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 4 -- ${cache_large} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 5 -- ${cache_small} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 2 -- ${cache_large} --cpu-type=HPI"
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#bench "${cmd} --gem5-readfile '$1' --gem5-restore 3 -- ${cache_small} --cpu-type=HPI"
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)
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if "$generate_checkpoints"; then
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# Create the checkpoints after the kernel boot.
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printf 'm5 exit' > "${common_gem5_readfile_file}"
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cpt_cmd="-E '/gem5.sh'"
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# RESTORE_INVESTIGATION
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## 5
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@@ -84,8 +84,5 @@ fi
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# Restore and run benchmarks.
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rm -f "$results_file"
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for n in 1000 10000 100000; do
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printf "n ${n}\n" >> "$results_file"
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printf "dhrystone ${n}" > "${common_gem5_readfile_file}"
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bench-all
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printf "\n" >> "$results_file"
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bench-all "dhrystone ${n}"
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done
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