koverstreet
commented
8 months ago @.***/T/#u
On Wed, Nov 22, 2023 at 8:56 AM Marcin @.***> wrote:
mkfs.bcachefs -L testkompresji /dev/vg-ssd-1833E14DA86F/testkompresji
External UUID: 631360b6-9d4a-4062-99f1-e2ddd40e9b25 Internal UUID: 0ae76b1b-0e98-426c-9fa2-a2d45f1b1d62 Device index: 0 Label: testkompresji Version: 1.3: rebalance_work Version upgrade complete: 0.0: (unknown version) Oldest version on disk: 1.3: rebalance_work Created: Wed Nov 22 14:44:08 2023 Sequence number: 0 Superblock size: 952 Clean: 0 Devices: 1 Sections: members_v1,members_v2 Features: new_siphash,new_extent_overwrite,btree_ptr_v2,extents_above_btree_updates,btree_updates_journalled,new_varint,journal_no_flush,alloc_v2,extents_acr oss_btree_nodes Compat features:
Options: block_size: 4.00 KiB btree_node_size: 256 KiB errors: continue [ro] panic metadata_replicas: 1 data_replicas: 1 metadata_replicas_required: 1 data_replicas_required: 1 encoded_extent_max: 64.0 KiB metadata_checksum: none [crc32c] crc64 xxhash data_checksum: none [crc32c] crc64 xxhash compression: none background_compression: none str_hash: crc32c crc64 [siphash] metadata_target: none foreground_target: none background_target: none promote_target: none erasure_code: 0 inodes_32bit: 1 shard_inode_numbers: 1 inodes_use_key_cache: 1 gc_reserve_percent: 8 gc_reserve_bytes: 0 B root_reserve_percent: 0 wide_macs: 0 acl: 1 usrquota: 0 grpquota: 0 prjquota: 0 journal_flush_delay: 1000 journal_flush_disabled: 0 journal_reclaim_delay: 100 journal_transaction_names: 1 version_upgrade: [compatible] incompatible none nocow: 0
members_v2 (size 136): Device: 0 Label: (none) UUID: e33e4fbd-98cc-4c8b-af46-152c2baa5f9d Size: 100 GiB read errors: 0 write errors: 0 checksum errors: 0 seqread iops: 0 seqwrite iops: 0 randread iops: 0 randwrite iops: 0 Bucket size: 256 KiB First bucket: 0 Buckets: 409600 Last mount: (never) State: rw Data allowed: journal,btree,user Has data: (none) Discard: 0 Freespace initialized: 0 mounting version 1.3: rebalance_work initializing new filesystem going read-write initializing freespace
cat /sys/fs/bcachefs/631360b6-9d4a-4062-99f1-e2ddd40e9b25/{compression_stats,options/compression,options/background_compression}
uncompressed: nr extents: 0 size: 0 B compressed: nr extents: 0 compressed size: 0 B uncompressed size: 0 B incompressible: nr extents: 0 size: 0 B none none
Lets'go:
echo lz4 > /sys/fs/bcachefs/631360b6-9d4a-4062-99f1-e2ddd40e9b25/options/compression dd if=/dev/zero of=/mnt/test/zero1 bs=1M count=1024 oflag=direct cat /sys/fs/bcachefs/631360b6-9d4a-4062-99f1-e2ddd40e9b25/{compression_stats,options/compression,options/background_compression} uncompressed: nr extents: 0 size: 0 B compressed: nr extents: 16384 compressed size: 64.0 MiB uncompressed size: 1.00 GiB incompressible: nr extents: 0 size: 0 B lz4 none
^- looks correctly Now:
echo zstd > /sys/fs/bcachefs/631360b6-9d4a-4062-99f1-e2ddd40e9b25/options/compression dd if=/dev/zero of=/mnt/test/zero1 bs=1M count=1024 oflag=direct cat /sys/fs/bcachefs/631360b6-9d4a-4062-99f1-e2ddd40e9b25/{compression_stats,options/compression,options/background_compression} uncompressed: nr extents: 0 size: 0 B compressed: nr extents: 0 compressed size: 0 B uncompressed size: 0 B incompressible: nr extents: 16384 size: 1.00 GiB zstd none
^ now is bad
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Lets'go:
^- looks correctly Now:
^ now is bad