X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=docs%2Freport%2Fintroduction%2Ftest_environment_intro.rst;h=7c4d5dfc9f1ee6d74d0092351c8154b83b260aa1;hb=refs%2Fchanges%2F20%2F27820%2F2;hp=da817f269dda9d5bde715259990e9fb2b782164c;hpb=d0f1e8778dac3549a1f1e403541de9f3ee88ec8d;p=csit.git diff --git a/docs/report/introduction/test_environment_intro.rst b/docs/report/introduction/test_environment_intro.rst index da817f269d..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.