Naohiro Aota f91c77d2c3 btrfs: zoned: optimize hint byte for zoned allocator ... [ Upstream commit 02444f2ac26eae6385a65fcd66915084d15dffba ] Writing sequentially to a huge file on btrfs on a SMR HDD revealed a decline of the performance (220 MiB/s to 30 MiB/s after 500 minutes). The performance goes down because of increased latency of the extent allocation, which is induced by a traversing of a lot of full block groups. So, this patch optimizes the ffe_ctl->hint_byte by choosing a block group with sufficient size from the active block group list, which does not contain full block groups. After applying the patch, the performance is maintained well. Fixes: 2eda57089e ("btrfs: zoned: implement sequential extent allocation") CC: stable@vger.kernel.org # 5.15+ Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-01-31 16:17:10 -08:00
..
tests	btrfs: convert btrfs_block_group::needs_free_space to runtime flag	2023-08-23 17:52:28 +02:00
Kconfig	…
Makefile	…
acl.c	…
async-thread.c	…
async-thread.h	…
backref.c	btrfs: fix resolving backrefs for inline extent followed by prealloc	2023-01-07 11:11:38 +01:00
backref.h	…
block-group.c	btrfs: fix use-after-free of new block group that became unused	2023-08-23 17:52:29 +02:00
block-group.h	btrfs: fix use-after-free of new block group that became unused	2023-08-23 17:52:29 +02:00
block-rsv.c	btrfs: account block group tree when calculating global reserve size	2023-08-03 10:24:13 +02:00
block-rsv.h	…
btrfs_inode.h	…
check-integrity.c	…
check-integrity.h	…
compression.c	…
compression.h	…
ctree.c	btrfs: error out when reallocating block for defrag using a stale transaction	2023-10-25 12:03:11 +02:00
ctree.h	btrfs: fix infinite directory reads	2024-01-31 16:17:05 -08:00
delalloc-space.c	btrfs: fix qgroup_free_reserved_data int overflow	2024-01-10 17:10:35 +01:00
delalloc-space.h	…
delayed-inode.c	btrfs: fix infinite directory reads	2024-01-31 16:17:05 -08:00
delayed-inode.h	btrfs: fix infinite directory reads	2024-01-31 16:17:05 -08:00
delayed-ref.c	btrfs: prevent transaction block reserve underflow when starting transaction	2023-10-25 12:03:09 +02:00
delayed-ref.h	btrfs: prevent transaction block reserve underflow when starting transaction	2023-10-25 12:03:09 +02:00
dev-replace.c	…
dev-replace.h	…
dir-item.c	btrfs: use struct fscrypt_str instead of struct qstr	2023-10-10 22:00:36 +02:00
discard.c	btrfs: hold block group refcount during async discard	2023-03-10 09:34:06 +01:00
discard.h	…
disk-io.c	btrfs: add dmesg output for first mount and last unmount of a filesystem	2023-12-08 08:51:16 +01:00
disk-io.h	btrfs: fix compat_ro checks against remount	2023-01-12 12:01:56 +01:00
export.c	…
export.h	…
extent-io-tree.c	btrfs: fix off-by-one in delalloc search during lseek	2023-01-12 12:01:56 +01:00
extent-io-tree.h	…
extent-tree.c	btrfs: zoned: optimize hint byte for zoned allocator	2024-01-31 16:17:10 -08:00
extent_io.c	btrfs: don't clear qgroup reserved bit in release_folio	2023-12-20 17:00:26 +01:00
extent_io.h	…
extent_map.c	btrfs: fix incorrect splitting in btrfs_drop_extent_map_range	2023-08-23 17:52:31 +02:00
extent_map.h	btrfs: get the next extent map during fiemap/lseek more efficiently	2023-04-26 14:28:38 +02:00
file-item.c	btrfs: mark the len field in struct btrfs_ordered_sum as unsigned	2024-01-10 17:10:35 +01:00
file.c	btrfs: fix qgroup_free_reserved_data int overflow	2024-01-10 17:10:35 +01:00
free-space-cache.c	btrfs: zoned: no longer count fresh BG region as zone unusable	2024-01-01 12:39:06 +00:00
free-space-cache.h	…
free-space-tree.c	btrfs: convert btrfs_block_group::needs_free_space to runtime flag	2023-08-23 17:52:28 +02:00
free-space-tree.h	btrfs: make clear_cache mount option to rebuild FST without disabling it	2023-05-17 11:53:42 +02:00
inode-item.c	btrfs: use struct fscrypt_str instead of struct qstr	2023-10-10 22:00:36 +02:00
inode-item.h	btrfs: use struct fscrypt_str instead of struct qstr	2023-10-10 22:00:36 +02:00
inode.c	btrfs: avoid copying BTRFS_ROOT_SUBVOL_DEAD flag to snapshot of subvolume being deleted	2024-01-31 16:17:06 -08:00
ioctl.c	btrfs: don't abort filesystem when attempting to snapshot deleted subvolume	2024-01-31 16:17:07 -08:00
locking.c	btrfs: add block-group tree to lockdep classes	2023-07-19 16:22:13 +02:00
locking.h	…
lzo.c	…
misc.h	…
ordered-data.c	btrfs: fix qgroup_free_reserved_data int overflow	2024-01-10 17:10:35 +01:00
ordered-data.h	btrfs: mark the len field in struct btrfs_ordered_sum as unsigned	2024-01-10 17:10:35 +01:00
orphan.c	…
print-tree.c	btrfs: print-tree: parent bytenr must be aligned to sector size	2023-05-17 11:53:42 +02:00
print-tree.h	…
props.c	…
props.h	…
qgroup.c	btrfs: fix qgroup_free_reserved_data int overflow	2024-01-10 17:10:35 +01:00
qgroup.h	btrfs: fix qgroup_free_reserved_data int overflow	2024-01-10 17:10:35 +01:00
raid56.c	…
raid56.h	…
rcu-string.h	btrfs: replace strncpy() with strscpy()	2023-01-12 12:01:55 +01:00
ref-verify.c	btrfs: ref-verify: free ref cache before clearing mount opt	2024-01-31 16:17:07 -08:00
ref-verify.h	…
reflink.c	…
reflink.h	…
relocation.c	btrfs: set page extent mapped after read_folio in relocate_one_page	2023-09-19 12:28:06 +02:00
root-tree.c	btrfs: use struct fscrypt_str instead of struct qstr	2023-10-10 22:00:36 +02:00
scrub.c	btrfs: scrub: try harder to mark RAID56 block groups read-only	2023-06-21 16:00:52 +02:00
send.c	btrfs: send: ensure send_fd is writable	2023-12-08 08:51:16 +01:00
send.h	…
space-info.c	btrfs: zoned: re-enable metadata over-commit for zoned mode	2023-09-19 12:28:06 +02:00
space-info.h	…
struct-funcs.c	…
subpage.c	…
subpage.h	…
super.c	btrfs: add dmesg output for first mount and last unmount of a filesystem	2023-12-08 08:51:16 +01:00
sysfs.c	btrfs: sysfs: validate scrub_speed_max value	2024-01-31 16:16:58 -08:00
sysfs.h	…
transaction.c	btrfs: prevent transaction block reserve underflow when starting transaction	2023-10-25 12:03:09 +02:00
transaction.h	…
tree-checker.c	btrfs: tree-checker: fix inline ref size in error messages	2024-01-31 16:17:07 -08:00
tree-checker.h	…
tree-defrag.c	btrfs: move the auto defrag code to defrag.c	2023-02-22 12:59:40 +01:00
tree-log.c	btrfs: initialize start_slot in btrfs_log_prealloc_extents	2023-10-25 12:03:09 +02:00
tree-log.h	btrfs: use struct fscrypt_str instead of struct qstr	2023-10-10 22:00:36 +02:00
tree-mod-log.c	…
tree-mod-log.h	…
ulist.c	…
ulist.h	…
uuid-tree.c	…
verity.c	…
volumes.c	btrfs: make error messages more clear when getting a chunk map	2023-12-08 08:51:16 +01:00
volumes.h	btrfs: add a helper to read the superblock metadata_uuid	2023-09-23 11:11:08 +02:00
xattr.c	…
xattr.h	…
zlib.c	btrfs: zlib: zero-initialize zlib workspace	2023-02-14 19:11:40 +01:00
zoned.c	btrfs: zoned: no longer count fresh BG region as zone unusable	2024-01-01 12:39:06 +00:00
zoned.h	…
zstd.c	…