6 .. _vpp_throughput_comparisons:
12 // Alternative Note for 1st Bullet when bad microcode Skx, Clx results are published
14 VPP throughput drop in the current release in comparison to previous
15 releases **on Intel Xeon 2n-skx, 3n-skx and 2n-clx testbeds**: VPP
16 performance test data shows lower performance and behaviour
17 inconsistency of these systems following the recent upgrade of
18 processor microcode packages (skx ucode 0x2000064, clx ucode
19 0x500002c) as part of updating Ubuntu 18.04 LTS kernel version.
20 Tested VPP and DPDK applications (L3fwd) are affected. Skx and Clx
21 test data will be corrected in subsequent maintenance report
22 version(s) once the issue is resolved. See :ref:`vpp_known_issues`.
26 current_vs_previous_release
29 3n-skx_vs_3n-hsw_testbeds
30 2n-skx_vs_2n-clx_testbeds
31 3n-skx_vs_2n-skx_testbeds