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| author |   Jonathan Neuschäfer <j.neuschaefer@gmx.net> | 2018-05-29 17:13:05 +0200 |
|---|---|---|
| committer |   Jason A. Donenfeld <Jason@zx2c4.com> | 2018-06-04 20:29:48 +0200 |
| commit | 693ce44591fddffbdbf8391fd0dbe8ec51cebfa0 (patch) | |
| tree | 0ea6d504089c81fececde643a753954136fc912b | |
| parent | mpmc_ptr_ring: Reduce the memory barrier usage (diff) | |
| download | wireguard-monolithic-historical-693ce44591fddffbdbf8391fd0dbe8ec51cebfa0.tar.xz wireguard-monolithic-historical-693ce44591fddffbdbf8391fd0dbe8ec51cebfa0.zip | |
mpmc_ptr_ring: Eliminate false sharing in struct mpmc_ptr_ring
| -rw-r--r-- | src/mpmc_ptr_ring.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mpmc_ptr_ring.h b/src/mpmc_ptr_ring.h index d628ea0..2f5c4c8 100644 --- a/src/mpmc_ptr_ring.h +++ b/src/mpmc_ptr_ring.h @@ -40,13 +40,13 @@ struct mpmc_ptr_ring { size_t size; /* consumer_head: updated in dequeue; read in enqueue */ - atomic_long_t consumer_head; + atomic_long_t consumer_head ____cacheline_aligned_in_smp; /* producer_head: read and updated in enqueue */ - atomic_long_t producer_head; + atomic_long_t producer_head ____cacheline_aligned_in_smp; /* producer_tail: updated in enqueue, read in dequeue */ - atomic_long_t producer_tail; + atomic_long_t producer_tail ____cacheline_aligned_in_smp; }; static inline bool mpmc_ptr_ring_empty(struct mpmc_ptr_ring *r) |