[dpdk-dev] [PATCH] Performance optimization of ACL build process

[Stephen Hemminger]

On Tue, 16 Aug 2016 17:01:27 +0300
Vladyslav Buslov <vladyslav.buslov at harmonicinc.com> wrote:

> Hello,
> 
> In our application we need to be able to allocate tens of thousands of ACLs at runtime.
> Testing revealed significant performance problems. We were able to track them to memset in calloc function which caused multiple page walks per invocation.
> Modifying tb_mem to use huge page memory resulted ~2x performance gain for that operation.
> 
> Regards,
> Vladyslav
> 
> Vladyslav Buslov (1):
>   acl: use rte_calloc for temporary memory allocation
> 
>  lib/librte_acl/tb_mem.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

What about making sure that the ACL code does it's own initialization of all fields
and just use malloc rather than calloc?