lkml.org 
[lkml]   [2022]   [Oct]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 rcu 7/8] rcutorture: Avoid torture.sh compressing identical files
Date
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: Paul E. McKenney <paulmck@kernel.org>
---
.../selftests/rcutorture/bin/torture.sh | 21 ++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
index b376688fe280a..fc63539377147 100755
--- a/tools/testing/selftests/rcutorture/bin/torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -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 +571,22 @@ 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 $T/xz-todo-copy
+ then
+ echo Linking vmlinux.xz files to re-use scenarios `date` | tee -a "$tdir/log-xz" | tee -a $T/log
+ dirstash="`pwd`"
+ for i in `cat $T/xz-todo-copy`
+ do
+ cd $i
+ find "$i" -name vmlinux -print > $T/xz-todo-copy-vmlinux
+ for v in `cat $T/xz-todo-copy-vmlinux`
+ do
+ rm -f "$v"
+ cp -l "$i/$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
--
2.31.1.189.g2e36527f23
\
 
 \ /
  Last update: 2022-10-20 01:04    [W:0.044 / U:0.380 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site