diff options
| author | Dave Chinner <david@fromorbit.com> | 2022-05-04 12:37:18 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2022-05-04 12:37:18 +1000 |
| commit | 956f1b8f80b5d34394950269fcf7286122b9a3a9 (patch) | |
| tree | 63e0180eeab58262dc1c7e9ec32f1fcf4f6d033c /fs/xfs/xfs_trace.h | |
| parent | 5e116e99dc94c84650a94aaf51d0c5bca3702352 (diff) | |
| parent | 1edf8056131aca6fe7f98873da8297e6fa279d8c (diff) | |
Merge tag 'rmap-speedups-5.19_2022-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into xfs-5.19-for-next
xfs: fix rmap inefficiencies
Reduce the performance impact of the reverse mapping btree when
reflink is enabled by using the much faster non-overlapped btree
lookup functions when we're searching the rmap index with a fully
specified key. If we find the exact record we're looking for,
great! We don't have to perform the full overlapped scan. For
filesystems with high sharing factors this reduces the xfs_scrub
runtime by a good 15%%.
This has been shown to reduce the fstests runtime for realtime rmap
configurations by 30%%, since the lack of AGs severely limits
scalability.
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_trace.h')
| -rw-r--r-- | fs/xfs/xfs_trace.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 75934e3c3f55..fe8f4ec98ec6 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -418,6 +418,7 @@ DECLARE_EVENT_CLASS(xfs_buf_class, __field(unsigned, lockval) __field(unsigned, flags) __field(unsigned long, caller_ip) + __field(const void *, buf_ops) ), TP_fast_assign( __entry->dev = bp->b_target->bt_dev; @@ -428,9 +429,10 @@ DECLARE_EVENT_CLASS(xfs_buf_class, __entry->lockval = bp->b_sema.count; __entry->flags = bp->b_flags; __entry->caller_ip = caller_ip; + __entry->buf_ops = bp->b_ops; ), TP_printk("dev %d:%d daddr 0x%llx bbcount 0x%x hold %d pincount %d " - "lock %d flags %s caller %pS", + "lock %d flags %s bufops %pS caller %pS", MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long long)__entry->bno, __entry->nblks, @@ -438,6 +440,7 @@ DECLARE_EVENT_CLASS(xfs_buf_class, __entry->pincount, __entry->lockval, __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), + __entry->buf_ops, (void *)__entry->caller_ip) ) |