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| author | Eric Dumazet <[email protected]> | 2019-10-30 18:48:44 +0000 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2019-11-11 09:52:18 +0000 |
| commit | 5e76f564572b85735de4b75a5e73b514be2562be (patch) | |
| tree | 95c35b5219632553bb218904da8bce60fe222626 /drivers/net/xen-netback/interface.c | |
| parent | dma-debug: reorder struct dma_debug_entry fields (diff) | |
| download | kernel-5e76f564572b85735de4b75a5e73b514be2562be.tar.gz kernel-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 <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions