git_update/performance_tests.sh
2024-07-05 16:46:00 +02:00

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#!/bin/bash
. driglibash-base #test
. creation_repo.sh &> /dev/null
FILES_TO_KEEP='sample0'
REMOTE="./remote/performance_testing"
Help()
{
echo "
NAME
performance_tests.sh
SYNOPSIS
performance_tests.sh [-a] [-h] [-n number]
OPTIONS
-a excutes all the tests.
-n number executes test number
-h prints the help.
DESCRIPTION
This script is in writing. It allows you to measure memory and bandwidth usage. The first four test different cloning methods. Te following apply changes to the local remote before testing fetching and merging commands.
TEST0: classic cloning
TEST1: --single-branch cloning
TEST2: --depth=1 --no-single-branch cloning
TEST3: --depth=1 cloning
TEST4: sparse-checking 1M sample0 only cloning
_________________
TEST5: classic fetching and merging after addition of a 1M file
TEST6: classic fetching and merging, after removal of a 1M file
TEST7: classic fetching and merging, after addition then removal of a 1M file
TEST8: --depth=1 fetching and merging, after addition of a 1M file
TEST9: --depth=1 fetching and merging, after removal of a 1M file
TEST10: --depth=1 fetching and merging, after addition then removal of 1M a file"
}
#USEFUL FUNCTIONS FOR THE TESTS
get_storage_used(){
mem=$(du $1 | tail -n1 | tr -cd [:digit:])
}
get_bandwidth(){
bw="unknown"
if [ "$1" = "cloning_text" ]; then
bw=$(grep -e "Receiving objects:" $1 | grep -o "Receiving objects: [[:alnum:]%/(),. ]*" | tail -n1)
bw=${bw#*,}
elif [ "$1" = "fetching_text" ]; then
bw=$(grep -e "\->" fetching_text| grep -o "[[:digit:].]* -> [[:digit:].]* [[:alpha:]]*")
fi
}
#TESTS ON THE INITIAL POPULATING OF THE REPO
test0(){
section TEST0
echo "TEST 0 : case of classic cloning."
git clone --progress --no-local $1 2> cloning_text
get_storage_used "./$REPO_NAME"
get_bandwidth cloning_text
echo "memory usage in a classic cloning : $mem"
echo "bandwidth usage : $bw"
run rm cloning_text
#run rm -rf $REPO_NAME
}
test1(){
section TEST1
echo "TEST 1 : case of --single-branch cloning."
git clone --progress --single-branch --no-local $1 2> cloning_text
get_storage_used ./$REPO_NAME
get_bandwidth cloning_text
echo "memory usage in a --single-branch cloning : $mem"
echo "bandwidth usage : $bw"
run rm cloning_text
run rm -rf $REPO_NAME
}
test2(){
section TEST2
echo "TEST 2 : case of --depth=1 --no-single-branch"
git clone --progress --depth=1 --no-local --no-single-branch $1 2> cloning_text
get_storage_used ./$REPO_NAME
get_bandwidth cloning_text
echo "memory usage in a --depth=1 --no-single-branch cloning : $mem"
echo "bandwidth usage : $bw"
run rm cloning_text
run rm -rf $REPO_NAME
}
test3(){
section TEST3
echo "TEST 3 : case of --depth=1 with single-branch (default))"
git clone --progress --single-branch --no-local --depth=1 $1 2> cloning_text
get_storage_used ./$REPO_NAME
get_bandwidth cloning_text
echo "memory usage in a --depth=1 with single-branch cloning : $mem"
echo "bandwidth usage : $bw"
run rm cloning_text
run rm -rf $REPO_NAME
}
test4(){
section TEST4
run mkdir $REPO_NAME
run echo "TEST 4 : case of sparse-checking only $FILES_TO_KEEP with depth=1"
#creating a git repo with sparse-checking settings
run cd $REPO_NAME
run git init -q
run git config core.sparsecheckout true
run echo $FILES_TO_KEEP >> .git/info/sparse-checkout
#pulling from the remote with sparse-checking enabled
run git remote add -f origin ../$1 &> /dev/null
run git pull origin main &> /dev/null
get_storage_used .
echo "memory usage: $mem"
echo "bandwidth usage : unknown"
cd ..
run rm -rf $REPO_NAME
}
#TESTS ON THE UPDATING OF THE REPOSITORY
test5(){
section TEST5
run echo 'TEST 5 : case of classic fetching and merging, after addition of a 1M file'
#initialization
run git clone $1 &> /dev/null
cd $REPO_NAME
run git fetch --progress origin &> /dev/null
run git merge --progress origin &> /dev/null
get_storage_used .
mem_before=$mem
#modification of the remote repo
cd ../$REMOTE
create_random_file 'sample5' '1M' #adding a 1M file
run git add sample5
run git commit --quiet -m"fourth 1M sample created"
cd ../../$REPO_NAME
#fetching
run git fetch --progress origin &> /dev/null
run git checkout origin/main
run git reset --hard
#run git merge --progress &> fetching_text
get_storage_used .
mem_after=$mem
mem=$(($mem_after-$mem_before))
#get_bandwidth fetching_text
echo "memory usage: +$mem"
#echo "bandwidth usage: $bw"
cd ../$REMOTE
git reset --hard -q HEAD~1
cd ../..
#rm -rf performance_testing
}
test6(){
section TEST6
run echo 'TEST 6 : case of classic fetching and merging, after removal of a 1M file'
#initialization
run git clone $1 #&> /dev/null
cd $REPO_NAME
get_storage_used .
mem_before=$mem
#modification of the remote repo
cd ../$REMOTE
run rm sample0
run git add sample0
run git commit --quiet -m"1M sample0 deleted"
cd ../../$REPO_NAME
#fetching
run git fetch --progress origin &> /dev/null
run git checkout origin/main
run git reset --hard
#run git merge --progress &> fetching_text
get_storage_used .
mem_after=$mem
mem=$(($mem_after-$mem_before))
#get_bandwidth fetching_text
echo "memory usage: $mem"
#echo "bandwidth usage: $bw"
cd ../$REMOTE
git reset --hard -q HEAD~1
cd ../..
#rm -rf performance_testing
}
test7(){
section TEST7
run echo 'TEST 7 : case of classic fetching and merging, after addition then removal of a 1M file'
#initialization
run git clone $1 &> /dev/null
cd $REPO_NAME
get_storage_used .
mem_before=$mem
#modification of the remote repo
cd ../$REMOTE
create_random_file 'sample5' '1M' #adding a 1M file
run git add sample5
run git commit --quiet -m"fourth 1M sample created"
run rm sample5
run git add sample5
run git commit --quiet -m"1M "sample5" deleted"
cd ../../$REPO_NAME
#fetching
run git fetch --progress origin &> /dev/null
run git checkout origin/main
run git reset --hard
#run git merge --progress &> fetching_text
get_storage_used .
mem_after=$mem
mem=$(($mem_after-$mem_before))
echo "memory usage: $mem"
#echo "bandwidth usage : unknown"
cd ../$REMOTE
git reset --hard -q HEAD~2
cd ../..
#rm -rf performance_testing
}
test8(){
section TEST8
run echo 'TEST 8 : case of fetching --depth=1 and merging, after addition of a 1M file'
#initialization
echo $(pwd)
run git clone $1 &> /dev/null
cd $REPO_NAME
get_storage_used .
mem_before=$mem
#modification of the remote repo
cd ../$REMOTE
create_random_file 'sample5' '1M' #adding a 1M file
run git add sample5
run git commit --quiet -m"fourth 1M sample created"
cd ../../$REPO_NAME
run git fetch --progress --depth=1 origin &> /dev/null
run git checkout origin/main
run git reset --hard
#run git merge --progress --allow-unrelated-histories &> fetching_text
get_storage_used .
mem_after=$mem
mem=$(($mem_after-$mem_before))
#get_bandwidth fetching_text
echo "memory usage: +$mem"
#echo "bandwidth usage: $bw"
cd ../$REMOTE
git reset --hard -q HEAD~1 #does not work cause commits change numbers
cd ../..
#rm -rf performance_testing
}
test9(){
section TEST9
run echo 'TEST 9 : case of --depth=1 fetching and merging, after removal of a 1M file'
#initialization
run git clone $1 &> /dev/null
cd $REPO_NAME
get_storage_used .
mem_before=$mem
#modification of the remote repo
cd ../$REMOTE
run rm sample0
run git add sample0
run git commit --quiet -m"1M sample0 deleted"
cd ../../$REPO_NAME
#fetching
run git fetch --progress --depth=1 --prune origin &> text1
run git checkout origin/main
run git reset --hard
#run git merge --progress --allow-unrelated-histories &> text2
get_storage_used .
mem_after=$mem
mem=$(($mem_after-$mem_before))
echo "memory usage: $mem"
#echo "bandwidth usage: unknown"
cd ../$REMOTE
git reset --hard -q HEAD~1
cd ../..
#rm -rf performance_testing
}
test10(){
section TEST10
run echo 'TEST 10 : case of --depth=1 fetching and merging, after addition then removal of a 1M file'
run git clone $1 &> /dev/null
cd $REPO_NAME
run git fetch --progress origin &> /dev/null
run git merge --progress origin &> /dev/null
get_storage_used .
mem_before=$mem
#modification of the remote repo
cd ../$REMOTE
create_random_file 'sample5' '1M' #adding a 1M file
run git add sample5
run git commit --quiet -m"fourth 1M sample created"
run rm sample5
run git add sample5
run git commit --quiet -m"1M "sample5" deleted"
cd ../../$REPO_NAME
#fetching
run git fetch --progress --depth=1 origin &> /dev/null
git checkout origin/main
git reset --hard
#run git merge --progress --allow-unrelated-histories &> /dev/null
get_storage_used .
mem_after=$mem
mem=$(($mem_after-$mem_before))
echo "memory usage: $mem"
#echo "bandwidth usage : unknown"
cd ../$REMOTE
git reset --hard -q HEAD~2
cd ../..
#rm -rf performance_testing
}
while getopts ":hn:a" option; do
case $option in
h) # display Help
Help
exit;;
n)
TEST_NUM=$OPTARG;;
a)
ALL_TESTS=true;;
\?) # Invalid option
echo "Error: Invalid option here"
exit;;
esac
done
if [ "$ALL_TESTS" = true ]; then
test0 $REMOTE
test1 $REMOTE
test2 $REMOTE
test3 $REMOTE
test4 $REMOTE
test5 $REMOTE
test6 $REMOTE
test7 $REMOTE
test8 $REMOTE
test9 $REMOTE
test10 $REMOTE
elif [ -n "$TEST_NUM" ]; then
case $TEST_NUM in
0)
test0 $REMOTE;;
1)
test1 $REMOTE;;
2)
test2 $REMOTE;;
3)
test3 $REMOTE;;
4)
test4 $REMOTE;;
5)
test5 $REMOTE;;
6)
test6 $REMOTE;;
7)
test7 $REMOTE;;
8)
test8 $REMOTE;;
9)
test9 $REMOTE;;
10)
test10 $REMOTE;;
*)
echo "Error: Invalid test number"
die;;
esac
else
Help
fi
#optimize in case all tests are run
#adapt in case of different units