1 # Copyright (c) 2014 The Chromium OS Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 AUTHOR = "David Sharp <dhsharp (a] chromium.org>" 6 NAME = "hardware_PerfCounterVerification" 7 TIME = "SHORT" 8 TEST_CATEGORY = "Functional" 9 TEST_CLASS = "hardware" 10 TEST_TYPE = "client" 11 JOB_RETRIES = 2 12 ATTRIBUTES = "suite:experimental" 13 SUITE = "experimental" 14 15 BUG_TEMPLATE = { 16 'owner': 'dhsharp (a] chromium.org', 17 'cc': ['cwp-team (a] google.com'] 18 } 19 20 DOC = """ 21 Verify performance counters 22 23 Arguments: 24 events: Events to pass to perf's -e argument. Events are passed in together, 25 so multiplexing may occur if more than one is specified. 26 perf_cmd: Which perf command to use to collect events. Supported values are 27 "stat" and "record -b" (for branch record). 28 program: Benchmark binary 29 multiplier: Multiplier on the number of loop iterations passed to the 30 benchmark binary. i.e., run 1*multiplier, 2*multiplier, etc loop iterations. 31 """ 32 33 job.run_test('hardware_PerfCounterVerification', tag='cycles_instructions', 34 perf_cmd='stat', events=('cycles', 'instructions'), 35 program='noploop', multiplier=10000000) 36 37 job.run_test('hardware_PerfCounterVerification', tag='LBR', 38 perf_cmd='record -b', events=('br_inst_retired.all_branches',), 39 program='noploop', multiplier=10000000) 40 41 job.run_test('hardware_PerfCounterVerification', tag='iTLB_misses', 42 perf_cmd='stat', events=('iTLB-misses','cycles'), 43 program='iTLB_benchmark', multiplier=100) 44 45 job.run_test('hardware_PerfCounterVerification', tag='dTLB_misses', 46 perf_cmd='stat', events=('dTLB-misses','cycles'), 47 program='dTLB_benchmark', multiplier=10000) 48
