NFVBENCH-146 Add cache_size option

[nfvbench.git] / nfvbench / cfg.default.yaml

diff --git a/nfvbench/cfg.default.yaml b/nfvbench/cfg.default.yaml
index 01097a0..8e94eac 100755 (executable)
--- a/nfvbench/cfg.default.yaml
+++ b/nfvbench/cfg.default.yaml
@@ -300,6 +300,16 @@ restart: false
 # if empty defaults to the one specified in generator_profile.cores
 cores:
 
+# Add cache size in packet generation for TRex field engine (FE).
+# More information for TRex performance:
+# https://trex-tgn.cisco.com/trex/doc/trex_stateless.html#_tutorial_field_engine_significantly_improve_performance
+# If cache_size = 0 (or empty): no cache will be used by TRex (default)
+# If cache_size < 0: cache_size will be set to flow count value
+cache_size:
+# The cache size is actually limited by the number of 64B mbufs configured in the trex platform configuration (see Trex manual 6.2.2. Memory section configuration)
+# Trex will use 1 x 64B mbuf per pre-built cached packet, assuming 1 pre-built cached packet per flow, it means for very large number of flows, the number of configured mbuf_64 will need to be set accordingly.
+mbuf_64:
+
 # mbuffer ratio to use for TRex (see TRex documentation for more details)
 mbuf_factor: 0.2