bench: bind snabbswitch to NUMA node 0

Binding to differen CPU and memory node is a bad idea!
Immediate performance improvement once this is fixed.

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
bench: Ensure all files are removed

The rm_file function is not working properly, fix it.

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Merge pull request #196 from virtualopensystems/bench-fixes

Bench fixes