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#!/usr/bin/env bash
NO_BCACHEFS_DEBUG=1
. $(dirname $(readlink -e ${BASH_SOURCE[0]}))/bcachefs-test-libs.sh
require-kernel-config XFS_FS=y
require-kernel-config BTRFS_FS=y
require-kernel-config BCACHEFS_FS=y
require-kernel-config BCACHEFS_TESTS
require-kernel-config BCACHEFS_QUOTA=n
require-kernel-config LATENCYTOP
require-kernel-config INIT_STACK_NONE
require-qemu-append -device vfio-pci,host=03:00.0
require-kernel-config BLK_DEV_NVME
config-mem 16G
btree_node_size=512k
t=8
trace=false
bcachefs_fast_mode=true
FSTYP=bcachefs
perf_mkfs()
{
# blkdiscard /dev/nvme0n1
if $bcachefs_fast_mode; then
run_quiet "" bcachefs format -f \
--errors=panic \
--bucket=2M \
--btree_node_size=$btree_node_size \
--metadata_checksum=none \
--data_checksum=none \
--journal_transaction_names=0 \
/dev/nvme0n1
mount -t bcachefs -o no_data_io /dev/nvme0n1 /mnt
run_quiet "" bcachefs device resize-journal /dev/nvme0n1 2G
ln -sf /sys/fs/bcachefs/*/perf_test p
else
mkfs.$FSTYP -f /dev/nvme0n1
mount -t $FSTYP /dev/nvme0n1 /mnt
fi
}
test_chmod()
{
perf_mkfs
cp -xr /usr /mnt/usr1
cp -xr /usr /mnt/usr2
cp -xr /usr /mnt/usr3
cp -xr /usr /mnt/usr4
cat > /root/chmod.sh <<-ZZ
for i in `seq 1 4`; do
(chmod -R +x /mnt/usr$i) &
done
wait
ZZ
chmod 755 /root/chmod.sh
perf record -ag -- /root/chmod.sh
}
main "$@"
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