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.. _vcl_ldpreload_doc:
LD_PRELOAD the VCL
==================
vcl-ldpreload is a LD_PRELOAD library that uses the VPP Communications Library (VCL).
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`` is built with VPP and can be found in
``vpp/build-root/install-vpp[_debug]-native/vpp/lib``
1. Running the demo
-------------------
Run test script without parameters to see help menu:
::
export WS_ROOT= (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