bcachefs: Improved btree write statistics

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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>

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This commit is contained in:

Kent Overstreet 2022-10-28 17:08:41 -04:00

parent 8852501fe5

commit 46fee692ee

9 changed files with 91 additions and 26 deletions

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29

fs/bcachefs/bcachefs.h

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11

fs/bcachefs/btree_cache.c

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46

fs/bcachefs/btree_io.c

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10

fs/bcachefs/btree_io.h

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1

fs/bcachefs/btree_types.h

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1

fs/bcachefs/btree_update_interior.c

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1

fs/bcachefs/btree_update_interior.h

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2

fs/bcachefs/btree_update_leaf.c

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16

fs/bcachefs/sysfs.c

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