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authorTibor Frank <tifrank@cisco.com>2018-07-30 09:49:06 +0200
committerTibor Frank <tifrank@cisco.com>2018-07-30 13:03:18 +0000
commitce1088d88744f2c040801c9852565d522b3feb68 (patch)
tree3683c1e740da518fc80d94e8b69e4b2cbad841c1 /docs/report/vpp_performance_tests/impact_meltdown/index.rst
parent84f46d579b405873ce9746a0bae2e8fdc38bd415 (diff)
CSIT-1197: Add Comparison Across Testbeds to the Report
Change-Id: Ibf0c880926b87e781830d7b39438b5145144ef5b Signed-off-by: Tibor Frank <tifrank@cisco.com>
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-Impact of Meltdown Patches
-==========================
-
-Following sections list changes to VPP throughput performance after applying
-patches addressing security vulnerabilities referred to as Meltdown
-(Variant3: Rogue Data Cache Load). Incremental kernel patches are
-applied for Ubuntu 16.04LTS as documented on
-`Ubuntu SpectreAndMeltdown page <https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SpectreAndMeltdown>`_.
-Detailed listing of used software versions and patches is documented in
-:ref:`test_environment`.
-
-NDR and PDR packet throughput results are compared for 1-core/1-thread,
-2-cores/2-threads and 4-cores/4-threads VPP configurations, with
-reference performance numbers coming from tests without the Meltdown
-patches. Tables show test results grouped into Best 20 changes (minimal
-performance impact), followed by Worst 20 changes (maximal performance
-impact). All results are also provided in downloadable CSV and pretty
-ASCII formats.
-
-NDR Throughput: Best 20 Changes
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. only:: html
-
- .. csv-table::
- :align: center
- :file: ../../../../_build/_static/vpp/meltdown-impact-ndr-1t1c-top.csv
-
-.. only:: latex
-
- .. raw:: latex
-
- \makeatletter
- \csvset{
- perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{m{4cm} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead},
- }
- \makeatother
-
- {\tiny
- \csvautobooklongtable[separator=comma,
- respect all,
- no check column count,
- perfimprovements column width=1cm,
- late after line={\\\hline},
- late after last line={\end{longtable}}
- ]{../_build/_static/vpp/meltdown-impact-ndr-1t1c-top.csv}
- }
-
-NDR Throughput: Worst 20 Changes
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. only:: html
-
- .. csv-table::
- :align: center
- :file: ../../../../_build/_static/vpp/meltdown-impact-ndr-1t1c-bottom.csv
-
-.. only:: latex
-
- .. raw:: latex
-
- \makeatletter
- \csvset{
- perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{m{4cm} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead},
- }
- \makeatother
-
- {\tiny
- \csvautobooklongtable[separator=comma,
- respect all,
- no check column count,
- perfimprovements column width=1cm,
- late after line={\\\hline},
- late after last line={\end{longtable}}
- ]{../_build/_static/vpp/meltdown-impact-ndr-1t1c-bottom.csv}
- }
-
-.. only:: html
-
- NDR Throughput: All Changes
- ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- Complete results for all NDR tests are available in a CSV and pretty
- ASCII formats:
-
- - `csv format for 1t1c <../../_static/vpp/meltdown-impact-ndr-1t1c-full.csv>`_,
- - `csv format for 2t2c <../../_static/vpp/meltdown-impact-ndr-2t2c-full.csv>`_,
- - `csv format for 4t4c <../../_static/vpp/meltdown-impact-ndr-4t4c-full.csv>`_,
- - `pretty ASCII format for 1t1c <../../_static/vpp/meltdown-impact-ndr-1t1c-full.txt>`_,
- - `pretty ASCII format for 2t2c <../../_static/vpp/meltdown-impact-ndr-2t2c-full.txt>`_,
- - `pretty ASCII format for 4t4c <../../_static/vpp/meltdown-impact-ndr-4t4c-full.txt>`_.
-
-PDR Throughput: Best 20 Changes
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. only:: html
-
- .. csv-table::
- :align: center
- :file: ../../../../_build/_static/vpp/meltdown-impact-pdr-1t1c-top.csv
-
-.. only:: latex
-
- .. raw:: latex
-
- \makeatletter
- \csvset{
- perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{m{4cm} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead},
- }
- \makeatother
-
- {\tiny
- \csvautobooklongtable[separator=comma,
- respect all,
- no check column count,
- perfimprovements column width=1cm,
- late after line={\\\hline},
- late after last line={\end{longtable}}
- ]{../_build/_static/vpp/meltdown-impact-pdr-1t1c-top.csv}
- }
-
-PDR Throughput: Worst 20 Changes
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. only:: html
-
- .. csv-table::
- :align: center
- :file: ../../../../_build/_static/vpp/meltdown-impact-pdr-1t1c-bottom.csv
-
-.. only:: latex
-
- .. raw:: latex
-
- \makeatletter
- \csvset{
- perfimprovements column width/.style={after head=\csv@pretable\begin{longtable}{m{4cm} m{#1} m{#1} m{#1} m{#1} m{#1}}\csv@tablehead},
- }
- \makeatother
-
- {\tiny
- \csvautobooklongtable[separator=comma,
- respect all,
- no check column count,
- perfimprovements column width=1cm,
- late after line={\\\hline},
- late after last line={\end{longtable}}
- ]{../_build/_static/vpp/meltdown-impact-pdr-1t1c-bottom.csv}
- }
-
-.. only:: html
-
-PDR Throughput: All Changes
-~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
- Complete results for all PDR tests are available in a CSV and pretty
- ASCII formats:
-
- - `csv format for 1t1c <../../_static/vpp/meltdown-impact-pdr-1t1c-full.csv>`_,
- - `csv format for 2t2c <../../_static/vpp/meltdown-impact-pdr-2t2c-full.csv>`_,
- - `csv format for 4t4c <../../_static/vpp/meltdown-impact-pdr-4t4c-full.csv>`_,
- - `pretty ASCII format for 1t1c <../../_static/vpp/meltdown-impact-pdr-1t1c-full.txt>`_,
- - `pretty ASCII format for 2t2c <../../_static/vpp/meltdown-impact-pdr-2t2c-full.txt>`_,
- - `pretty ASCII format for 4t4c <../../_static/vpp/meltdown-impact-pdr-4t4c-full.txt>`_.