Test concurrent buffered I/O, DIO, AIO, mmap I/O and splice I/O on the
same files.
Signed-off-by: Eryu Guan <eguan@xxxxxxxxxx>
---
This fio job file has been proven to be potent, it triggers WARNINGs on ext4
and xfs with 4.1-rc6 kernel.
ext4: WARNING: at fs/ext4/inode.c:1328
xfs: WARNING: CPU: 7 PID: 3090 at fs/xfs/xfs_file.c:726 xfs_file_dio_aio_write+0x176/0x2a8 [xfs]()
The ext4 issue should be fixed by Lukas's patch
ext4: fix reservation release on invalidatepage for delalloc fs
And it ever paniced kernel in mm code and hung xfs.
I reduced the numjobs and iodepth to reduce the test time(~25s on my test host)
and scale them by $LOAD_FACTOR. And it still could trigger the warning on ext4
and xfs with reduced workload.
v2:
- use mktemp to create tmp fio job file
v3:
- initialize scratch dev and mount it correctly before test
- roll back to use /tmp/$$ as tmp
tests/generic/090 | 122 ++++++++++++++++++++++++++++++++++++++++++++++++++
tests/generic/090.out | 2 +
tests/generic/group | 1 +
3 files changed, 125 insertions(+)
create mode 100755 tests/generic/090
create mode 100644 tests/generic/090.out
diff --git a/tests/generic/090 b/tests/generic/090
new file mode 100755
index 0000000..e7cca52
--- /dev/null
+++ b/tests/generic/090
@@ -0,0 +1,122 @@
+#! /bin/bash
+# FS QA Test generic/090
+#
+# Concurrent mixed I/O (buffer I/O, aiodio, mmap, splice) on the same files
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2015 Red Hat Inc. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux
+_require_scratch
+
+iodepth=$((16 * LOAD_FACTOR))
+iodepth_batch=$((8 * LOAD_FACTOR))
+numjobs=$((5 * LOAD_FACTOR))
+fio_config=$tmp.fio
+cat >$fio_config <<EOF
+[global]
+bs=8k
+iodepth=$iodepth
+iodepth_batch=$iodepth_batch
+randrepeat=1
+size=1m
+directory=$SCRATCH_MNT
+numjobs=$numjobs
+[job1]
+ioengine=sync
+bs=1k
+direct=1
+rw=randread
+filename=file1:file2
+[job2]
+ioengine=libaio
+rw=randwrite
+direct=1
+filename=file1:file2
+[job3]
+bs=1k
+ioengine=posixaio
+rw=randwrite
+direct=1
+filename=file1:file2
+[job4]
+ioengine=splice
+direct=1
+rw=randwrite
+filename=file1:file2
+[job5]
+bs=1k
+ioengine=sync
+rw=randread
+filename=file1:file2
+[job6]
+ioengine=posixaio
+rw=randwrite
+filename=file1:file2
+[job7]
+ioengine=splice
+rw=randwrite
+filename=file1:file2
+[job8]
+ioengine=mmap
+rw=randwrite
+bs=1k
+filename=file1:file2
+[job9]
+ioengine=mmap
+rw=randwrite
+direct=1
+filename=file1:file2
+EOF
+# with ioengine=mmap and direct=1, fio requires bs to be at least pagesize,
+# which is a fio built-in var.
+echo 'bs=$pagesize' >> $fio_config
+
+rm -f $seqres.full
+_require_fio $fio_config
+_scratch_mkfs >>$seqres.full 2>&1
+_scratch_mount
+
+echo "Silence is golden"
+$FIO_PROG $fio_config >>$seqres.full 2>&1
+
+# all done, expect no hang no oops no fs corruption,
+# _check_dmesg and _check_filesystems will do the check work for us
+status=0
+exit
diff --git a/tests/generic/090.out b/tests/generic/090.out
new file mode 100644
index 0000000..2b5100d
--- /dev/null
+++ b/tests/generic/090.out
@@ -0,0 +1,2 @@
+QA output created by 090
+Silence is golden
diff --git a/tests/generic/group b/tests/generic/group
index 0c8964c..2e534a5 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -92,6 +92,7 @@
087 perms auto quick
088 perms auto quick
089 metadata auto
+090 auto rw stress
091 rw auto quick
092 auto quick prealloc
093 attr cap udf auto
--
2.4.2
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