Add a bihash prefetchable bucket-level cache
According to Maciek, the easiest way to leverage the csit "performance
trend" job is to actually merge the patch once verified. Manual
testing indicates that the patch improves l2 path performance. Other
use-cases are TBD. It's possible that we'll need to back out the patch
depending on what happens.
Change-Id: Ic0a0363de35ef9be953ad7709c57c3936b73fd5a
Signed-off-by: Dave Barach <dave@barachs.net>
diff --git a/src/vnet/l2/l2_fib.c b/src/vnet/l2/l2_fib.c
index 4ed1698..7e59b09 100644
--- a/src/vnet/l2/l2_fib.c
+++ b/src/vnet/l2/l2_fib.c
@@ -66,7 +66,7 @@
{
l2fib_main_t *msm = &l2fib_main;
BVT (clib_bihash) * h = &msm->mac_table;
- clib_bihash_bucket_t *b;
+ BVT (clib_bihash_bucket) * b;
BVT (clib_bihash_value) * v;
l2fib_entry_key_t key;
l2fib_entry_result_t result;
@@ -108,7 +108,7 @@
l2fib_main_t *msm = &l2fib_main;
l2_bridge_domain_t *bd_config;
BVT (clib_bihash) * h = &msm->mac_table;
- clib_bihash_bucket_t *b;
+ BVT (clib_bihash_bucket) * b;
BVT (clib_bihash_value) * v;
l2fib_entry_key_t key;
l2fib_entry_result_t result;
@@ -961,7 +961,7 @@
if (i < (h->nbuckets - 3))
{
- clib_bihash_bucket_t *b = &h->buckets[i + 3];
+ BVT (clib_bihash_bucket) * b = &h->buckets[i + 3];
CLIB_PREFETCH (b, CLIB_CACHE_LINE_BYTES, LOAD);
b = &h->buckets[i + 1];
if (b->offset)
@@ -972,7 +972,7 @@
}
}
- clib_bihash_bucket_t *b = &h->buckets[i];
+ BVT (clib_bihash_bucket) * b = &h->buckets[i];
if (b->offset == 0)
continue;
BVT (clib_bihash_value) * v =