# vcl-ldpreload: a LD_PRELOAD library that uses the VPP Communications Library (VCL). {#vcl_ldpreload_doc} User can LD_PRELOAD any application that uses POSIX socket API. NOTE: The sources have been moved to .../vpp/src/vcl and libvcl_ldpreload.so libvcl-ldpreload.so is built with VPP and can be found in .../vpp/build-root/install-vpp[_debug]-native/vpp/lib64 ## HowTo # 1. Running the demo ## Run test script without parameters to see help menu: export WS_ROOT=<top level vpp git repo dir> (e.g. /scratch/my_name/vpp) $WS_ROOT/test/scripts/socket_test.sh # 2. Docker iPerf examples. ## These launch xterms. To quit, close xterms and run following docker kill cmd (WARNING: This will kill all docker containers!) 'docker kill $(docker ps -q)' ## Docker iPerf using default Linux Bridge $WS_ROOT/test/scripts/socket_test.sh -bi docker-kernel ## Docker iPerf using VPP $WS_ROOT/test/scripts/socket_test.sh -bi docker-preload