torture: Make torture.sh print the number of files to be compressed

Compressing gigabyte vmlinux files can take some time, and it can be a
bit annoying to not know many more batches of compression there will be.
This commit therefore makes torture.sh print the number of files to be
compressed just before starting compression and just after compression
completes.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index 363f560..8e88234 100755 (executable)
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -434,7 +434,12 @@ then
        batchno=1
        if test -s $T/xz-todo
        then
-               echo Size before compressing: `du -sh $tdir | awk '{ print $1 }'` `date` 2>&1 | tee -a "$tdir/log-xz" | tee -a $T/log
+               for i in `cat $T/xz-todo`
+               do
+                       find $i -name 'vmlinux*' -print
+               done | wc -l | awk '{ print $1 }' > $T/xz-todo-count
+               n2compress="`cat $T/xz-todo-count`"
+               echo Size before compressing $n2compress files: `du -sh $tdir | awk '{ print $1 }'` `date` 2>&1 | tee -a "$tdir/log-xz" | tee -a $T/log
                for i in `cat $T/xz-todo`
                do
                        echo Compressing vmlinux files in ${i}: `date` >> "$tdir/log-xz" 2>&1
@@ -456,7 +461,7 @@ then
                        echo Waiting for final batch $batchno of $ncompresses compressions `date` | tee -a "$tdir/log-xz" | tee -a $T/log
                fi
                wait
-               echo Size after compressing: `du -sh $tdir | awk '{ print $1 }'` `date` 2>&1 | tee -a "$tdir/log-xz" | tee -a $T/log
+               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 $T/log
        else
                echo No compression needed: `date` >> "$tdir/log-xz" 2>&1