Commit cb0982e2 authored by Paul E. McKenney's avatar Paul E. McKenney

rcutorture: Avoid torture.sh compressing identical files

Currently, torture.sh will compress the vmlinux files for KASAN and
KCSAN runs.  But it will compress all of the files, including those
copied verbatim by the kvm-again.sh script.  Compression takes around ten
minutes, so this is not a good thing.  This commit therefore compresses
only one of a given set of identical vmlinux files, and then hard-links
it to the directories produced by kvm-again.sh.
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent dfabd420
......@@ -536,7 +536,10 @@ if test -n "$tdir" && test $compress_concurrency -gt 0
then
# KASAN vmlinux files can approach 1GB in size, so compress them.
echo Looking for K[AC]SAN files to compress: `date` > "$tdir/log-xz" 2>&1
find "$tdir" -type d -name '*-k[ac]san' -print > $T/xz-todo
find "$tdir" -type d -name '*-k[ac]san' -print > $T/xz-todo-all
find "$tdir" -type f -name 're-run' -print | sed -e 's,/re-run,,' |
grep -e '-k[ac]san$' > $T/xz-todo-copy
sort $T/xz-todo-all $T/xz-todo-copy | uniq -u > $T/xz-todo
ncompresses=0
batchno=1
if test -s $T/xz-todo
......@@ -568,6 +571,24 @@ then
echo Waiting for final batch $batchno of $ncompresses compressions `date` | tee -a "$tdir/log-xz" | tee -a $T/log
fi
wait
if test -s $T/xz-todo-copy
then
# The trick here is that we need corresponding
# vmlinux files from corresponding scenarios.
echo Linking vmlinux.xz files to re-use scenarios `date` | tee -a "$tdir/log-xz" | tee -a $T/log
dirstash="`pwd`"
for i in `cat $T/xz-todo-copy`
do
cd $i
find . -name vmlinux -print > $T/xz-todo-copy-vmlinux
for v in `cat $T/xz-todo-copy-vmlinux`
do
rm -f "$v"
cp -l `cat $i/re-run`/"$i/$v".xz "`dirname "$v"`"
done
cd "$dirstash"
done
fi
echo Size after compressing $n2compress files: `du -sh $tdir | awk '{ print $1 }'` `date` 2>&1 | tee -a "$tdir/log-xz" | tee -a $T/log
echo Total duration `get_starttime_duration $starttime`. | tee -a $T/log
else
......
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