X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=docs%2Freport%2Fintroduction%2Ftest_environment_intro.rst;h=7c4d5dfc9f1ee6d74d0092351c8154b83b260aa1;hb=12c3608c3464add7664e3b8f41b07b9b8fd03f1c;hp=0d35acee7241cddaaeb416a6d5afce014b6b08d1;hpb=25a8fe0aa594ca010b7f1aad449a2af2b6625bd7;p=csit.git diff --git a/docs/report/introduction/test_environment_intro.rst b/docs/report/introduction/test_environment_intro.rst index 0d35acee72..7c4d5dfc9f 100644 --- a/docs/report/introduction/test_environment_intro.rst +++ b/docs/report/introduction/test_environment_intro.rst @@ -28,30 +28,3 @@ physical testbeds are maintained in FD.io CSIT repository: `FD.io CSIT testbeds - Xeon Cascade Lake`_, `FD.io CSIT testbeds - Xeon Skylake, Arm, Atom`_ and `FD.io CSIT Testbeds - Xeon Haswell`_. - -Pre-Test Server Calibration ---------------------------- - -Number of SUT server sub-system runtime parameters have been identified -as impacting data plane performance tests. Calibrating those parameters -is part of FD.io CSIT pre-test activities, and includes measuring and -reporting following: - -#. System level core jitter – measure duration of core interrupts by - Linux in clock cycles and how often interrupts happen. Using - `CPU core jitter tool `_. - -#. Memory bandwidth – measure bandwidth with `Intel MLC tool - `_. - -#. Memory latency – measure memory latency with Intel MLC tool. - -#. Cache latency at all levels (L1, L2, and Last Level Cache) – measure - cache latency with Intel MLC tool. - -Measured values of listed parameters are especially important for -repeatable zero packet loss throughput measurements across multiple -system instances. Generally they come useful as a background data for -comparing data plane performance results across disparate servers. - -Following sections include measured calibration data for testbeds.