| Latest revision |
Your text |
| Line 1: |
Line 1: |
| − | [[Category: Development]]
| + | This graph shows how many patches from OpenVZ developers are merged in mainstream, for each kernel version. |
| | | | |
| − | == Description ==
| + | It is done in gnuplot. Data set produced by a simple shell script working on git repository. Here is the script: |
| − | | |
| − | This graph shows how many patches from OpenVZ developers were merged into mainstream Linux kernel, per each kernel version.
| |
| − | | |
| − | It is drawn by gnuplot using the data set obtained from kernel git repository. | |
| − | | |
| − | == Source code ==
| |
| − | === Collect data ===
| |
| − | Here is the script to produce the data for the graph, called <code>count</code>: | |
| | | | |
| | <small><source lang="bash"> | | <small><source lang="bash"> |
| − | #!/bin/sh
| + | !/bin/sh |
| | | | |
| − | # Whose patches to count
| + | latest=$(git tag | grep -v -- -rc | tail -n1 | sed -e 's/^.*\.\(.*\)$/\1/') |
| − | #PAT='@openvz.org|@parallels.com|@sw.ru|@swsoft.com|@sw.com.sg|kuznet@'
| + | ((latest++)) |
| − | #PAT='@openvz.org|@parallels.com|@sw.ru|@swsoft.com|@sw.com.sg|adobriyan@|kuznet@|gorcunov@'
| |
| − | PAT='@openvz.org|@parallels.com|@sw.ru|@swsoft.com|@sw.com.sg|@virtuozzo.com|kuznet@|gorcunov@'
| |
| | | | |
| − | # Return the date of the given tag, in a format usable by gnuplot
| |
| | get_tag_date() { | | get_tag_date() { |
| − | echo $(git show $1 | egrep ^Date: | head -n1) |
| + | echo $(git show $1 | egrep ^Date: | head -n1) | |
| − | sed 's/^Date: ... \(.*\) [-+]....$/\1/' |
| + | sed 's/^Date: ... \(.*\) [-+]....$/\1/' | |
| − | sed 's/ ..:..:..//' | sed 's/ /-/g'
| + | sed 's/ ..:..:..//' | sed 's/ /-/g' |
| − | }
| |
| − | | |
| − | # Count the number of patches whose authors match $PAT,
| |
| − | # for the period between two given git tags
| |
| − | count_patches() {
| |
| − | git log --pretty=short --no-merges $1..$2 |
| |
| − | egrep '^Author: ' | egrep $PAT | wc -l
| |
| − | }
| |
| − | | |
| − | count_total_patches() {
| |
| − | git log --pretty=short --no-merges $1..$2 | grep -c '^commit '
| |
| | } | | } |
| | | | |
| − | # Latest 3.x kernel
| + | for f in $(seq 13 $latest); do |
| − | #latest3=$(git tag | grep -v -- -rc | tail -n1 | sed -e 's/^.*\.\(.*\)$/\1/')
| + | v1=v2.6.$((f-1)) |
| − | latest3=$(git tag | grep -v -- -rc | grep -F 'v3.' | \
| + | d1=$(get_tag_date $v1) |
| − | awk -F . '{print $2}' | sort -n | tail -n1)
| + | if [ $f = $latest ]; then |
| − | # Latest 2.6.x kernel
| + | v2="HEAD " |
| − | latest26=39
| + | else |
| − | | + | v2=v2.6.$f |
| − | # Find out if number of patches for HEAD is much more
| + | fi |
| − | # than for latest -rc. If yes, use HEAD, otherwise -rc.:
| + | d2=$(get_tag_date $v2) |
| − | last_rc=$(git describe --abbrev=0)
| + | # echo -n "$v1..$v2 ($d1 -- $d2): " |
| − | HEAD=$last_rc
| + | echo -n $d2 $v2 " " |
| − | if ! test -z "$last_rc"; then
| + | git log --pretty=short --no-merges $v1..$v2 | grep 'Author:' | egrep '@openvz.org|@parallels.com|@sw.ru|@swsoft.com|@sw.com.sg|adobriyan@|kuznet@' | wc -l |
| − | much_more=10
| |
| − | count_head=$(count_patches v3.$latest3 HEAD)
| |
| − | count_rc=$(count_patches v3.$latest3 $last_rc)
| |
| − | if test $count_head -gt $((count_rc+much_more)); then
| |
| − | HEAD="HEAD "
| |
| − | fi
| |
| − | fi
| |
| − | | |
| − | pv=''
| |
| − | for v in $(git for-each-ref --sort='*authordate' --format='%(tag)' refs/tags |\
| |
| − | grep -v -E -- '-rc|-tree|v2.6.11') HEAD; do
| |
| − | if [ -z "$pv" ]; then
| |
| − | pv=$v
| |
| − | continue
| |
| − | fi
| |
| − | | |
| − | pd=$(get_tag_date $pv)
| |
| − | d=$(get_tag_date $v)
| |
| − | count_ours=$(count_patches $pv $v)
| |
| − | count_total=$(count_total_patches $pv $v)
| |
| − | if test "$count_ours" -gt 0; then
| |
| − | echo $d $v " " $count_ours $count_total
| |
| − | fi
| |
| − | pv=$v
| |
| | done | sed 's/ /\t/g' | | done | sed 's/ /\t/g' |
| − | </source></small>
| |
| − |
| |
| − | === Draw the graph ===
| |
| − |
| |
| − | Here is the script to produce the graph. Note it calls the previous script under the name 'count'.
| |
| − | <small><source lang="bash">
| |
| − | #!/bin/sh
| |
| − |
| |
| − | REPO=~/git/linux/.git
| |
| − | COUNT=$(pwd)/count
| |
| − | OUT=$(pwd)/time.dat
| |
| − | export GDFONTPATH=/usr/share/fonts/microsoft
| |
| − | export GIT_DIR=$REPO
| |
| − |
| |
| − | if test "$1" != "-f"; then
| |
| − | echo "== Previous (old) stats =="
| |
| − | tail -n 2 $OUT
| |
| − | # Update the repo and count new stats
| |
| − | (cd $REPO && cd .. && git pull) && sh $COUNT > $OUT
| |
| − | echo "== New stats =="
| |
| − | tail -n 2 $OUT
| |
| − | fi
| |
| − |
| |
| − | DATE=$(tail -n 1 $OUT | cut -f 1 | awk -F- '{print $2,$1,$3}')
| |
| − | MAXY=$(awk 'BEGIN {max=0}; ($3 > max) {max=$3}; END {print max+80}' < time.dat)
| |
| − | # GNU date is powerful!
| |
| − | MAXX=$(date +%b-1-%Y --date='+2 months')
| |
| − |
| |
| − | cat << EOF | gnuplot > plot.png
| |
| − | set terminal png enhanced font "verdana,13" size 1600,1200
| |
| − |
| |
| − |
| |
| − | set title "OpenVZ team kernel patches progress as of ${DATE}"
| |
| − |
| |
| − | unset xlabel
| |
| − | set xdata time
| |
| − | set timefmt "%b-%d-%Y"
| |
| − | set format x "%b\n%Y"
| |
| − | set grid xtics mxtics noytics
| |
| − |
| |
| − | set xrange [ : "${MAXX}" ]
| |
| − | set yrange [ 0 : ${MAXY} ]
| |
| − | set ylabel "Number of patches from OpenVZ team,\n per kernel release, accepted into mainstream"
| |
| − |
| |
| − | set border 3 # no lines at right and top
| |
| − | set xtics nomirror # no tics at top
| |
| − | set ytics nomirror # no tics at right
| |
| − |
| |
| − | plot '${OUT}' using 1:3 with linespoints pt 6 ps 1 lw 2 lt 2 notitle, \
| |
| − | '' using 1:3:2 with labels left offset 0,5.5 rotate notitle, \
| |
| − | '' using 1:3:3 with labels left offset 0.7,0 notitle
| |
| | | | |
| − | EOF
| |
| | </source></small> | | </source></small> |
