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How to use _execute_latency_test method in lisa

Best Python code snippet using lisa_python

performance.py

...184            min_nic_count=2, min_count=2, min_core_count=8, network_interface=Sriov()185        ),186    )187    def perf_xdp_lagscope_latency(self, result: TestResult, log: Logger) -> None:188        self._execute_latency_test(189            result,190            Lagscope,191            log,192        )193    @TestCaseMetadata(194        description="""195        This case compare and record latency impact of XDP component.196        The test use ntttcp to send tcp packets. And then compare the latency197        with/without XDP component. If the gap is more than 40%, the test case198        fails.199        """,200        priority=3,201        requirement=simple_requirement(202            min_nic_count=2, min_count=2, min_core_count=8, network_interface=Sriov()203        ),204    )205    def perf_xdp_ntttcp_latency(self, result: TestResult, log: Logger) -> None:206        self._execute_latency_test(207            result,208            Ntttcp,209            log,210        )211    def _execute_latency_test(212        self,213        test_result: TestResult,214        tool_type: Type[Tool],215        log: Logger,216    ) -> None:217        environment = test_result.environment218        assert environment, "fail to get environment from testresult"219        server = environment.nodes[0]220        client = environment.nodes[1]221        server_xdpdump = get_xdpdump(server)222        server_xdpdump.make_by_build_type(BuildType.PERF)223        server_nic = server.nics.get_nic_by_index(1)224        # the latency is not stable in cloud environment, test multiple times225        # and aggregate the result....

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