With the no-copy bvec patches and nullb eats blk_bio_segment_split()
eats >7%. It adds yet another fast path for it.
8K 16K 32K 64K
before: 932 904 868 788
after: 934 919 902 862
Would appreciate if anyone knows off the bat typical queue_max_segments, etc.
numbers for NVMe.
Pavel Begunkov (2):
block: add a function for *segment_split fast path
block: add a fast path for seg split of large bio
block/blk-merge.c | 107 +++++++++++++++++++++++++++++-----------------
1 file changed, 68 insertions(+), 39 deletions(-)
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2.24.0
