mirror of
https://github.com/cirosantilli/linux-kernel-module-cheat.git
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56738a1c70
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
27 lines
1.1 KiB
Bash
Executable File
27 lines
1.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# https://github.com/cirosantilli/linux-kernel-module-cheat/tree/58de3f7243016c052ad080f82dd757d61878219b#gem5-run-benchmark
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set -eu
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root_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
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outfile="${root_dir}/out/gem5-bench-dhrystone.txt"
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arch=aarch64
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cmd="./run -a '$arch' --gem5 --eval-busybox '/gem5.sh'"
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# These cache sizes roughly match the ARM Cortex A75
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# https://en.wikipedia.org/wiki/ARM_Cortex-A75
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restore='-l 1 -- --cpu-type=HPI --restore-with-cpu=HPI --caches --l2cache --l1d_size=128kB --l1i_size=1024kB --l2_size=256kB'
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# Generate a checkpoint after Linux boots, using the faster and less detailed CPU.
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# The boot takes a while, be patient young Padawan.
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eval "$cmd"
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printf 'n cycles\n' > "$outfile"
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for n in 1000 10000 100000; do
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# Restore the most recent checkpoint taken with the more detailed and slower HPI CPU,
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# and run the benchmark with different parameters. We skip the boot completely, saving time!
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eval "${cmd} --gem5-readfile 'dhrystone ${n}' ${restore}" &>/dev/null
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printf "${n} " >> "$outfile"
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./gem5-stat -a "$arch" >> "$outfile"
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done
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