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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2020-11-20 03:54:40 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:08:48 +0300 |
| commit | 8a92e545597a3eaca80f2df14eb9a783d96c8445 (patch) | |
| tree | ffd661bdf578d16f3ddb448eaf1eb8584faf8ae9 /fs/bcachefs/trace.h | |
| parent | 125907203cc902d6fd430950f700a44124e208d4 (diff) | |
| download | linux-8a92e545597a3eaca80f2df14eb9a783d96c8445.tar.xz | |
bcachefs: Ensure journal reclaim runs when btree key cache is too dirty
Ensuring the key cache isn't too dirty is critical for ensuring that the
shrinker can reclaim memory.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/trace.h')
| -rw-r--r-- | fs/bcachefs/trace.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/fs/bcachefs/trace.h b/fs/bcachefs/trace.h index 09653c7ed858..2afc09ad64ea 100644 --- a/fs/bcachefs/trace.h +++ b/fs/bcachefs/trace.h @@ -121,6 +121,65 @@ DEFINE_EVENT(bio, journal_write, TP_ARGS(bio) ); +TRACE_EVENT(journal_reclaim_start, + TP_PROTO(struct bch_fs *c, u64 min_nr, + u64 prereserved, u64 prereserved_total, + u64 btree_cache_dirty, u64 btree_cache_total, + u64 btree_key_cache_dirty, u64 btree_key_cache_total), + TP_ARGS(c, min_nr, prereserved, prereserved_total, + btree_cache_dirty, btree_cache_total, + btree_key_cache_dirty, btree_key_cache_total), + + TP_STRUCT__entry( + __array(char, uuid, 16 ) + __field(u64, min_nr ) + __field(u64, prereserved ) + __field(u64, prereserved_total ) + __field(u64, btree_cache_dirty ) + __field(u64, btree_cache_total ) + __field(u64, btree_key_cache_dirty ) + __field(u64, btree_key_cache_total ) + ), + + TP_fast_assign( + memcpy(__entry->uuid, c->sb.user_uuid.b, 16); + __entry->min_nr = min_nr; + __entry->prereserved = prereserved; + __entry->prereserved_total = prereserved_total; + __entry->btree_cache_dirty = btree_cache_dirty; + __entry->btree_cache_total = btree_cache_total; + __entry->btree_key_cache_dirty = btree_key_cache_dirty; + __entry->btree_key_cache_total = btree_key_cache_total; + ), + + TP_printk("%pU min %llu prereserved %llu/%llu btree cache %llu/%llu key cache %llu/%llu", + __entry->uuid, + __entry->min_nr, + __entry->prereserved, + __entry->prereserved_total, + __entry->btree_cache_dirty, + __entry->btree_cache_total, + __entry->btree_key_cache_dirty, + __entry->btree_key_cache_total) +); + +TRACE_EVENT(journal_reclaim_finish, + TP_PROTO(struct bch_fs *c, u64 nr_flushed), + TP_ARGS(c, nr_flushed), + + TP_STRUCT__entry( + __array(char, uuid, 16 ) + __field(u64, nr_flushed ) + ), + + TP_fast_assign( + memcpy(__entry->uuid, c->sb.user_uuid.b, 16); + __entry->nr_flushed = nr_flushed; + ), + + TP_printk("%pU flushed %llu", __entry->uuid, __entry->nr_flushed) +); + /* bset.c: */ DEFINE_EVENT(bpos, bkey_pack_pos_fail, |