diff options
| author | Kent Overstreet <kmo@daterainc.com> | 2013-10-31 18:43:22 -0400 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2013-11-11 00:56:41 -0500 |
| commit | 48a915a87f0bd98c3d68d029acf223a2e5116f07 (patch) | |
| tree | d821604169acc801b655b04c1de1cc5672169ec4 /include/trace | |
| parent | 17e21a9f248d3d330acdfb2405c23b8d84c9c23a (diff) | |
bcache: Better full stripe scanning
The old scanning-by-stripe code burned too much CPU, this should be
better.
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/bcache.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h index 32c89b33c391..e2b9576d00e2 100644 --- a/include/trace/events/bcache.h +++ b/include/trace/events/bcache.h | |||
| @@ -368,6 +368,35 @@ DEFINE_EVENT(btree_node, bcache_btree_set_root, | |||
| 368 | TP_ARGS(b) | 368 | TP_ARGS(b) |
| 369 | ); | 369 | ); |
| 370 | 370 | ||
| 371 | TRACE_EVENT(bcache_keyscan, | ||
| 372 | TP_PROTO(unsigned nr_found, | ||
| 373 | unsigned start_inode, uint64_t start_offset, | ||
| 374 | unsigned end_inode, uint64_t end_offset), | ||
| 375 | TP_ARGS(nr_found, | ||
| 376 | start_inode, start_offset, | ||
| 377 | end_inode, end_offset), | ||
| 378 | |||
| 379 | TP_STRUCT__entry( | ||
| 380 | __field(__u32, nr_found ) | ||
| 381 | __field(__u32, start_inode ) | ||
| 382 | __field(__u64, start_offset ) | ||
| 383 | __field(__u32, end_inode ) | ||
| 384 | __field(__u64, end_offset ) | ||
| 385 | ), | ||
| 386 | |||
| 387 | TP_fast_assign( | ||
| 388 | __entry->nr_found = nr_found; | ||
| 389 | __entry->start_inode = start_inode; | ||
| 390 | __entry->start_offset = start_offset; | ||
| 391 | __entry->end_inode = end_inode; | ||
| 392 | __entry->end_offset = end_offset; | ||
| 393 | ), | ||
| 394 | |||
| 395 | TP_printk("found %u keys from %u:%llu to %u:%llu", __entry->nr_found, | ||
| 396 | __entry->start_inode, __entry->start_offset, | ||
| 397 | __entry->end_inode, __entry->end_offset) | ||
| 398 | ); | ||
| 399 | |||
| 371 | /* Allocator */ | 400 | /* Allocator */ |
| 372 | 401 | ||
| 373 | TRACE_EVENT(bcache_alloc_invalidate, | 402 | TRACE_EVENT(bcache_alloc_invalidate, |