Fill preallocated(update/keep size) space by buffered/direct IO
Also change the seek uplimit of last round dd from 1023 to 1024
to completely fill preallocated space.
Signed-off-by: Eryu Guan <eguan@xxxxxxxxxx>
---
274 | 95 ++++++++++++++++++++++++++++++++++++---------------------------
274.out | 7 +++--
2 files changed, 58 insertions(+), 44 deletions(-)
diff --git a/274 b/274
index dcad90e..938232a 100755
--- a/274
+++ b/274
@@ -50,52 +50,65 @@ _supported_os IRIX Linux
_require_scratch
_require_xfs_io_falloc
-echo "------------------------------"
-echo "preallocation test"
-echo "------------------------------"
-
rm -f $seq.full
-umount $SCRATCH_DEV 2>/dev/null
-_scratch_mkfs_sized $((1 * 1024 * 1024 * 1024)) >>$seq.full 2>&1
-_scratch_mount
+do_test()
+{
+ local keep_size=""
+ local dio=""
+ [ $1 -eq 1 ] && keep_size="-k"
+ [ $2 -eq 1 ] && dio="oflag=direct"
+
+ umount $SCRATCH_DEV 2>/dev/null
+ _scratch_mkfs_sized $((1 * 1024 * 1024 * 1024)) >>$seq.full 2>&1
+ _scratch_mount
-# Create a 4k file and Allocate 4M past EOF on that file
-xfs_io -F -f -c "pwrite 0 4k" -c "falloc -k 4k 4m" $SCRATCH_MNT/test \
- >>$seq.full 2>&1 || _fail "failed to create test file"
+ # Create a 4k file and Allocate 4M past EOF on that file
+ xfs_io -F -f -c "pwrite 0 4k" -c "falloc $keep_size 4k 4m" $SCRATCH_MNT/test \
+ >>$seq.full 2>&1 || _fail "failed to create test file"
-# Fill the rest of the fs completely
-# Note, this will show ENOSPC errors in $seq.full, that's ok.
-echo "Fill fs with 1M IOs; ENOSPC expected" >> $seq.full
-dd if=/dev/zero of=$SCRATCH_MNT/tmp1 bs=1M >>$seq.full 2>&1
-echo "Fill fs with 4K IOs; ENOSPC expected" >> $seq.full
-dd if=/dev/zero of=$SCRATCH_MNT/tmp2 bs=4K >>$seq.full 2>&1
-sync
-# Last effort, use O_SYNC
-echo "Fill fs with 4K DIOs; ENOSPC expected" >> $seq.full
-dd if=/dev/zero of=$SCRATCH_MNT/tmp3 bs=4K oflag=sync >>$seq.full 2>&1
-# Save space usage info
-echo "Post-fill space:" >> $seq.full
-df $SCRATCH_MNT >>$seq.full 2>&1
+ # Fill the rest of the fs completely
+ # Note, this will show ENOSPC errors in $seq.full, that's ok.
+ echo "Fill fs with 1M IOs; ENOSPC expected" >> $seq.full
+ dd if=/dev/zero of=$SCRATCH_MNT/tmp1 bs=1M >>$seq.full 2>&1
+ echo "Fill fs with 4K IOs; ENOSPC expected" >> $seq.full
+ dd if=/dev/zero of=$SCRATCH_MNT/tmp2 bs=4K >>$seq.full 2>&1
+ sync
+ # Last effort, use O_SYNC
+ echo "Fill fs with 4K DIOs; ENOSPC expected" >> $seq.full
+ dd if=/dev/zero of=$SCRATCH_MNT/tmp3 bs=4K oflag=sync >>$seq.full 2>&1
+ # Save space usage info
+ echo "Post-fill space:" >> $seq.full
+ df $SCRATCH_MNT >>$seq.full 2>&1
+
+ # Now attempt a write into all of the preallocated space -
+ # in a very nasty way, badly fragmenting it and then filling it in.
+ echo "Fill in prealloc space; fragment at offsets:" >> $seq.full
+ for i in `seq 1 2 1023`; do
+ echo -n "$i " >> $seq.full
+ dd if=/dev/zero of=$SCRATCH_MNT/test seek=$i bs=4K count=1 conv=notrunc $dio \
+ >>$seq.full 2>/dev/null || _fail "failed to write to test file"
+ done
+ sync
+ echo >> $seq.full
+ echo "Fill in prealloc space; fill holes at offsets:" >> $seq.full
+ for i in `seq 2 2 1024`; do
+ echo -n "$i " >> $seq.full
+ dd if=/dev/zero of=$SCRATCH_MNT/test seek=$i bs=4K count=1 conv=notrunc $dio \
+ >>$seq.full 2>/dev/null || _fail "failed to fill test file"
+ done
+ sync
+ echo >> $seq.full
+}
-# Now attempt a write into all of the preallocated space -
-# in a very nasty way, badly fragmenting it and then filling it in.
-echo "Fill in prealloc space; fragment at offsets:" >> $seq.full
-for i in `seq 1 2 1023`; do
- echo -n "$i " >> $seq.full
- dd if=/dev/zero of=$SCRATCH_MNT/test seek=$i bs=4K count=1 conv=notrunc \
- >>$seq.full 2>/dev/null || _fail "failed to write to test file"
-done
-sync
-echo >> $seq.full
-echo "Fill in prealloc space; fill holes at offsets:" >> $seq.full
-for i in `seq 2 2 1023`; do
- echo -n "$i " >> $seq.full
- dd if=/dev/zero of=$SCRATCH_MNT/test seek=$i bs=4K count=1 conv=notrunc \
- >>$seq.full 2>/dev/null || _fail "failed to fill test file"
-done
-sync
-echo >> $seq.full
+echo "preallocation test, update size/buffer IO"
+do_test 0 0
+echo "preallocation test, update size/direct IO"
+do_test 0 1
+echo "preallocation test, keep size/buffer IO"
+do_test 1 0
+echo "preallocation test, keep size/direct IO"
+do_test 1 1
echo "done"
exit
diff --git a/274.out b/274.out
index edbf3cc..b1473bc 100644
--- a/274.out
+++ b/274.out
@@ -1,5 +1,6 @@
QA output created by 274
-------------------------------
-preallocation test
-------------------------------
+preallocation test, update size/buffer IO
+preallocation test, update size/direct IO
+preallocation test, keep size/buffer IO
+preallocation test, keep size/direct IO
done
--
1.7.10.4
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
