tree 84d3d6eec828d96ba382c9614b4974de3fd700fd
parent d04ac15542dd027f317a99d3c285028a2d28deae
author Mark Seaborn <mseaborn@google.com> 1521504882 -0700
committer Mark Seaborn <mseaborn@google.com> 1521504882 -0700

[perftest] Add library for running performance tests

This is approximately a port to Zircon of the perf test runner from
garnet/bin/zircon_benchmarks/test_runner.cc.  Changes from that
include the following:

 * Use a KeepRunning() interface similar to gbenchmark so that the
   test function can own the loop.  This is useful for test cases that
   need to return to an event loop.

 * Use a "bool" return type (rather than "void"), to allow propagating
   errors.  This will eventually allow compatibility with unittest.h's
   ASSERT_*() macros, though these aren't supported with perftest yet.

 * This version has some unit tests for the perf test runner.

 * This version will print a table of summary statistics for the test
   cases.

 * This version mostly uses getopt_long() for command line argument
   parsing.  In contrast, zircon_benchmarks uses the gflags library,
   which isn't available in the Zircon layer.

 * We leave out producing trace events for test runs for now.  I'll
   add this back later.

ZX-1715

Change-Id: I90d313b4223b4a0548b2edc32ad77b6e6de0310a