[2/4] hash: add local cache for TSX region
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Commit Message
From: Yipeng Wang <yipeng1.wang@intel.com>
This patch adds back the local cache when TSX support is turned on.
When TSX is turned on, free key-data slot ring would be contended by
various TSX regions. The purpose of this commit is to reduce possible
memory collisions during key insertion.
Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com>
---
lib/librte_hash/rte_cuckoo_hash.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Comments
On Mon, Nov 05, 2018 at 05:39:11PM +0000, Bruce Richardson wrote:
> From: Yipeng Wang <yipeng1.wang@intel.com>
>
> This patch adds back the local cache when TSX support is turned on.
>
> When TSX is turned on, free key-data slot ring would be contended by
> various TSX regions. The purpose of this commit is to reduce possible
> memory collisions during key insertion.
>
> Signed-off-by: Yipeng Wang <yipeng1.wang@intel.com>
>
> ---
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
@@ -180,8 +180,10 @@ struct rte_hash *
}
/* Check extra flags field to check extra options. */
- if (params->extra_flag & RTE_HASH_EXTRA_FLAGS_TRANS_MEM_SUPPORT)
+ if (params->extra_flag & RTE_HASH_EXTRA_FLAGS_TRANS_MEM_SUPPORT) {
+ use_local_cache = 1;
hw_trans_mem_support = 1;
+ }
if (params->extra_flag & RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD) {
use_local_cache = 1;