Line 45 of the file /base/test/perf_test_suite.cc raises the priority of the test executable to high. On Fuchsia, this is currently a no-op, but may become counterproductive to efforts to meaningfully benchmark Fuchsia's performance, due to Fuchsia's lower-level service providers competing with the test executable for resources.
 

PerfTestSuite::Initialize() in file /base/test/perf_test_suite.cc raises the priority of the test executable to high. On Fuchsia, this is currently a no-op, but may become counterproductive to efforts to meaningfully benchmark Fuchsia's performance, due to Fuchsia's lower-level service providers competing with the test executable for resources.