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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-10-29 00:08:41 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:45 +0300 |
| commit | 46fee692eebb850b8478531e185fb5a5f942d3ea (patch) | |
| tree | 332347a26a8887b98e5bcb40456aa69825413500 /fs/bcachefs/btree_io.h | |
| parent | 8852501fe570c4956c0e29246e1e5636f09b58fb (diff) | |
| download | linux-46fee692eebb850b8478531e185fb5a5f942d3ea.tar.xz | |
bcachefs: Improved btree write statistics
This replaces sysfs btree_avg_write_size with btree_write_stats, which
now breaks out statistics by the source of the btree write.
Btree writes that are too small are a source of inefficiency, and
excessive btree resort overhead - this will let us see what's causing
them.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/btree_io.h')
| -rw-r--r-- | fs/bcachefs/btree_io.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/bcachefs/btree_io.h b/fs/bcachefs/btree_io.h index 8af853642123..4b1810ad7d91 100644 --- a/fs/bcachefs/btree_io.h +++ b/fs/bcachefs/btree_io.h @@ -139,8 +139,12 @@ void bch2_btree_complete_write(struct bch_fs *, struct btree *, bool bch2_btree_post_write_cleanup(struct bch_fs *, struct btree *); -#define BTREE_WRITE_ONLY_IF_NEED (1U << 0) -#define BTREE_WRITE_ALREADY_STARTED (1U << 1) +enum btree_write_flags { + __BTREE_WRITE_ONLY_IF_NEED = BTREE_WRITE_TYPE_BITS, + __BTREE_WRITE_ALREADY_STARTED, +}; +#define BTREE_WRITE_ONLY_IF_NEED (1U << __BTREE_WRITE_ONLY_IF_NEED ) +#define BTREE_WRITE_ALREADY_STARTED (1U << __BTREE_WRITE_ALREADY_STARTED) void __bch2_btree_node_write(struct bch_fs *, struct btree *, unsigned); void bch2_btree_node_write(struct bch_fs *, struct btree *, @@ -219,4 +223,6 @@ static inline void compat_btree_node(unsigned level, enum btree_id btree_id, bn->min_key = bpos_nosnap_successor(bn->min_key); } +void bch2_btree_write_stats_to_text(struct printbuf *, struct bch_fs *); + #endif /* _BCACHEFS_BTREE_IO_H */ |