Test that zoned GC defragments sequential writers forced into the same zone. Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: "Darrick J. Wong" <djwong@xxxxxxxxxx> --- tests/xfs/4210 | 119 +++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/4210.out | 5 ++ 2 files changed, 124 insertions(+) create mode 100755 tests/xfs/4210 create mode 100644 tests/xfs/4210.out diff --git a/tests/xfs/4210 b/tests/xfs/4210 new file mode 100755 index 000000000000..3311f5365c9f --- /dev/null +++ b/tests/xfs/4210 @@ -0,0 +1,119 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2024 Christoph Hellwig. +# +# FS QA Test No. 4210 +# +# Test that GC defragments sequentially written files. +# +. ./common/preamble +_begin_fstest auto rw zone + +. ./common/filter +. ./common/zoned + +_require_scratch +_require_odirect +_require_aio + +_scratch_mkfs_sized $((256 * 1024 * 1024)) >>$seqres.full 2>&1 + +# limit to two max open zones so that all writes get thrown into the blender +export MOUNT_OPTIONS="$MOUNT_OPTIONS -o max_open_zones=2" +_try_scratch_mount || _notrun "mount option not supported" +_require_xfs_scratch_zoned + +fio_config=$tmp.fio +fio_out=$tmp.fio.out +fio_err=$tmp.fio.err + +cat >$fio_config <<EOF +[global] +bs=64k +iodepth=16 +iodepth_batch=8 +directory=$SCRATCH_MNT +ioengine=libaio +rw=write +direct=1 +size=30m + +[file1] +filename=file1 + +[file2] +filename=file2 + +[file3] +filename=file3 + +[file4] +filename=file4 + +[file5] +filename=file5 + +[file6] +filename=file6 + +[file7] +filename=file7 + +[file8] +filename=file8 +EOF + +_require_fio $fio_config + +# create fragmented files +$FIO_PROG $fio_config --output=$fio_out +cat $fio_out >> $seqres.full + +# fill up all remaining user capacity +dd if=/dev/zero of=$SCRATCH_MNT/fill bs=4k >> $seqres.full 2>&1 + +sync + +# all files should be badly fragmented now +extents2=$(_count_extents $SCRATCH_MNT/file2) +echo "number of file 2 extents: $extents2" >>$seqres.full +test $extents2 -gt 200 || _fail "fio did not fragment file" + +extents4=$(_count_extents $SCRATCH_MNT/file4) +echo "number of file 4 extents: $extents4" >>$seqres.full +test $extents4 -gt 200 || _fail "fio did not fragment file" + +extents6=$(_count_extents $SCRATCH_MNT/file6) +echo "number of file 6 extents: $extents6" >>$seqres.full +test $extents6 -gt 200 || _fail "fio did not fragment file" + +extents8=$(_count_extents $SCRATCH_MNT/file8) +echo "number of file 8 extents: $extents8" >>$seqres.full +test $extents8 -gt 200 || _fail "fio did not fragment file" + +# remove half of the files to create work for GC +rm $SCRATCH_MNT/file1 +rm $SCRATCH_MNT/file3 +rm $SCRATCH_MNT/file5 +rm $SCRATCH_MNT/file7 + +# fill up all remaining user capacity a few times to force GC +for i in `seq 1 10`; do + dd if=/dev/zero of=$SCRATCH_MNT/fill bs=4k >> $seqres.full 2>&1 + $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/fill >> $seqres.full 2>&1 +done + +# +# All files should have a no more than a handful of extents now +# +extents2=$(_count_extents $SCRATCH_MNT/file2) +_within_tolerance "file 2 extents" $extents2 3 2 -v +extents4=$(_count_extents $SCRATCH_MNT/file4) +_within_tolerance "file 4 extents" $extents4 3 2 -v +extents6=$(_count_extents $SCRATCH_MNT/file6) +_within_tolerance "file 6 extents" $extents6 3 2 -v +extents8=$(_count_extents $SCRATCH_MNT/file8) +_within_tolerance "file 8 extents" $extents8 3 2 -v + +status=0 +exit diff --git a/tests/xfs/4210.out b/tests/xfs/4210.out new file mode 100644 index 000000000000..488dd9db790b --- /dev/null +++ b/tests/xfs/4210.out @@ -0,0 +1,5 @@ +QA output created by 4210 +file 2 extents is in range +file 4 extents is in range +file 6 extents is in range +file 8 extents is in range -- 2.47.2
