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| author |   Eric Dumazet <edumazet@google.com> | 2019-10-30 11:48:44 -0700 |
|---|---|---|
| committer |   Christoph Hellwig <hch@lst.de> | 2019-11-11 10:52:18 +0100 |
| commit | 5e76f564572b85735de4b75a5e73b514be2562be (patch) | |
| tree | 95c35b5219632553bb218904da8bce60fe222626 /kernel/dma/coherent.c | |
| parent | dma-debug: reorder struct dma_debug_entry fields (diff) | |
| download | linux-dev-5e76f564572b85735de4b75a5e73b514be2562be.tar.xz linux-dev-5e76f564572b85735de4b75a5e73b514be2562be.zip | |
dma-debug: increase HASH_SIZE
With modern NIC, it is not unusual having about ~256,000 active dma
mappings and a hash size of 1024 buckets is too small.
Forcing full cache line per bucket does not seem useful, especially now
that we have contention on free_entries_lock for allocations and freeing
of entries. Better use the space to fit more buckets.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma/coherent.c')
0 files changed, 0 insertions, 0 deletions