---
title: "Multi-Core Speedup"
-weight: 13
+weight: 3
---
# Multi-Core Speedup
Multi-core tests are executed in the following VPP worker thread and physical
core configurations:
-#. Intel Xeon Icelake and Cascadelake testbeds (2n-icx, 3n-icx, 2n-clx)
+1. Intel Xeon Icelake and Cascadelake testbeds (2n-icx, 3n-icx, 2n-clx)
with Intel HT enabled (2 logical CPU cores per each physical core):
- #. 2t1c - 2 VPP worker threads on 1 physical core.
- #. 4t2c - 4 VPP worker threads on 2 physical cores.
- #. 8t4c - 8 VPP worker threads on 4 physical cores.
+ 1. 2t1c - 2 VPP worker threads on 1 physical core.
+ 2. 4t2c - 4 VPP worker threads on 2 physical cores.
+ 3. 8t4c - 8 VPP worker threads on 4 physical cores.
VPP worker threads are the data plane threads running on isolated
logical cores. With Intel HT enabled VPP workers are placed as sibling
If number of VPP workers is higher than number of physical or virtual
interfaces, multiple receive queues are configured on each interface.
NIC Receive Side Scaling (RSS) for physical interfaces and multi-queue
-for virtual interfaces are used for this purpose.
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+for virtual interfaces are used for this purpose.