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tools: Add codestats.sh to compute code statistics such as size, speed.
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‎tools/codestats.sh‎

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#!/bin/sh
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#
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# This script generates statistics (build size, speed) for successive
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# revisions of the code. It checks out git commits one an a time, compiles
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# various ports to determine their size, and runs pystone on the unix port.
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# Results are collected in the output file.
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#
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# Note: you will need to copy this file out of the tools directory before
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# executing because it does not exist in old revisions of the repository.
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# check that we are in the root directory of the repository
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if [ ! -d py -o ! -d unix -o ! -d stmhal ]; then
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echo "script must be run from root of the repository"
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exit 1
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fi
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# output file for the data; data is appended if file already exists
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output=codestats.dat
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# utility programs
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RM=/bin/rm
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AWK=awk
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MAKE="make -j2"
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# these are the binaries that are built; some have 2 or 3 depending on version
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bin_unix=unix/micropython
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bin_stmhal=stmhal/build-PYBV10/firmware.elf
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bin_barearm_1=bare-arm/build/flash.elf
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bin_barearm_2=bare-arm/build/firmware.elf
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bin_minimal=minimal/build/firmware.elf
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bin_cc3200_1=cc3200/build/LAUNCHXL/application.axf
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bin_cc3200_2=cc3200/build/LAUNCHXL/release/application.axf
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bin_cc3200_3=cc3200/build/WIPY/release/application.axf
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# start at zero size; if build fails reuse previous valid size
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size_unix="0"
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size_stmhal="0"
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size_barearm="0"
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size_minimal="0"
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size_cc3200="0"
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# start at zero pystones
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pystones="0"
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# this code runs pystone and averages the results
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pystoneavg=/tmp/pystoneavg.py
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cat > $pystoneavg << EOF
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import pystone
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samples = [pystone.pystones(300000)[1] for i in range(5)]
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samples.sort()
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stones = sum(samples[1:-1]) / (len(samples) - 2) # exclude smallest and largest
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print("stones %g" % stones)
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EOF
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function get_size() {
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if [ -r $2 ]; then
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size $2 | tail -n1 | $AWK '{print $1}'
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else
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echo $1
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fi
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}
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function get_size2() {
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if [ -r $2 ]; then
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size $2 | tail -n1 | $AWK '{print $1}'
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elif [ -r $3 ]; then
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size $3 | tail -n1 | $AWK '{print $1}'
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else
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echo $1
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fi
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}
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function get_size3() {
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if [ -r $2 ]; then
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size $2 | tail -n1 | $AWK '{print $1}'
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elif [ -r $3 ]; then
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size $3 | tail -n1 | $AWK '{print $1}'
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elif [ -r $4 ]; then
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size $4 | tail -n1 | $AWK '{print $1}'
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else
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echo $1
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fi
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}
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# get the last revision in the data file; or start at v1.0 if no file
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if [ -r $output ]; then
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last_rev=$(tail -n1 $output | $AWK '{print $1}')
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else
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echo "# hash size_unix size_stmhal size_barearm size_minimal size_cc3200 pystones" > $output
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last_rev="v1.0"
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fi
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# get a list of hashes between last revision (exclusive) and master
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hashes=$(git log --format=format:"%H" --reverse ${last_rev}..master)
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#hashes=$(git log --format=format:"%H" --reverse ${last_rev}..master | $AWK '{if (NR % 10 == 0) print $0}') # do every 10th one
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for hash in $hashes; do
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#### checkout the revision ####
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git checkout $hash
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if [ $? -ne 0 ]; then
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echo "aborting"
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exit 1
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fi
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#### apply patches to get it to build ####
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if grep -q '#if defined(MP_CLOCKS_PER_SEC) && (MP_CLOCKS_PER_SEC == 1000000) // POSIX' unix/modtime.c; then
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echo apply patch
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git apply - << EOF
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diff --git a/unix/modtime.c b/unix/modtime.c
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index 77d2945..dae0644 100644
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--- a/unix/modtime.c
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+++ b/unix/modtime.c
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@@ -55,10 +55,8 @@ void msec_sleep_tv(struct timeval *tv) {
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#define MP_CLOCKS_PER_SEC CLOCKS_PER_SEC
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#endif
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-#if defined(MP_CLOCKS_PER_SEC) && (MP_CLOCKS_PER_SEC == 1000000) // POSIX
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-#define CLOCK_DIV 1000.0
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-#elif defined(MP_CLOCKS_PER_SEC) && (MP_CLOCKS_PER_SEC == 1000) // WIN32
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-#define CLOCK_DIV 1.0
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+#if defined(MP_CLOCKS_PER_SEC)
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+#define CLOCK_DIV (MP_CLOCKS_PER_SEC / 1000.0F)
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#else
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#error Unsupported clock() implementation
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#endif
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EOF
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fi
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#### unix ####
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$RM $bin_unix
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$MAKE -C unix CFLAGS_EXTRA=-DNDEBUG
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size_unix=$(get_size $size_unix $bin_unix)
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# undo patch if it was applied
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git checkout unix/modtime.c
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#### stmhal ####
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$RM $bin_stmhal
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$MAKE -C stmhal board=PYBV10
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size_stmhal=$(get_size $size_stmhal $bin_stmhal)
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#### bare-arm ####
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$RM $bin_barearm_1 $bin_barearm_2
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$MAKE -C bare-arm
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size_barearm=$(get_size2 $size_barearm $bin_barearm_1 $bin_barearm_2)
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#### minimal ####
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if [ -r minimal/Makefile ]; then
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$RM $bin_minimal
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$MAKE -C minimal CROSS=1
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size_minimal=$(get_size $size_minimal $bin_minimal)
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fi
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#### cc3200 ####
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if [ -r cc3200/Makefile ]; then
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$RM $bin_cc3200_1 $bin_cc3200_2 $bin_cc3200_3
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$MAKE -C cc3200 BTARGET=application
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size_cc3200=$(get_size3 $size_cc3200 $bin_cc3200_1 $bin_cc3200_2 $bin_cc3200_3)
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fi
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#### run pystone ####
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if [ -x $bin_unix ]; then
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new_pystones=$($bin_unix $pystoneavg)
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# only update the variable if pystone executed successfully
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if echo $new_pystones | grep -q "^stones"; then
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pystones=$(echo $new_pystones | $AWK '{print $2}')
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fi
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fi
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#### output data for this commit ####
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echo "$hash $size_unix $size_stmhal $size_barearm $size_minimal $size_cc3200 $pystones" >> $output
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done
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# checkout master and cleanup
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git checkout master
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$RM $pystoneavg

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