tests: benchmarks: remove obsolete boot_time test suite
This test for boot time was sufficient when it was originally introduced, but is no longer appropriate as the code and ecosystem grew. Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
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Jennifer Williams
Anas Nashif
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1a927b5fbf
commit
502d7bd116
5 changed files with 0 additions and 150 deletions
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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.13.1)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(boot_time)
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FILE(GLOB app_sources src/*.c)
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target_sources(app PRIVATE ${app_sources})
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target_include_directories(app PRIVATE
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${ZEPHYR_BASE}/kernel/include
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${ZEPHYR_BASE}/arch/${ARCH}/include
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)
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@ -1,64 +0,0 @@
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Title: Boot Time Measurement
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Description:
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BootTime measures the time:
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a) from system reset to kernel start (crt0.s's __start)
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b) from kernel start to begin of main()
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c) from kernel start to begin of first task
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d) from kernel start to when kernel's main task goes immediately idle
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The project can be built using one of the following three configurations:
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best
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-------
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- Disables most features
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- Provides best case boot measurement
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default
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-------
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- Default configuration options
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- Provides typical boot measurement
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worst
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-------
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- Enables most features.
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- Provides worst case boot measurement
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--------------------------------------------------------------------------------
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Building and Running Project:
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This benchmark outputs to the console. It can be built and executed
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on QEMU as follows:
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make run
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--------------------------------------------------------------------------------
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Troubleshooting:
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Problems caused by out-dated project information can be addressed by
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issuing one of the following commands then rebuilding the project:
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make clean # discard results of previous builds
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# but keep existing configuration info
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or
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make pristine # discard results of previous builds
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# and restore pre-defined configuration info
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--------------------------------------------------------------------------------
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Sample Output:
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tc_start() - Boot Time Measurement
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Boot Result: Clock Frequency: 25 MHz
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__start : 88410717 cycles, 3536428 us
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_start->main(): 2422894 cycles, 96915 us
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_start->task : 2450930 cycles, 98037 us
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_start->idle : 37503993 cycles, 1500159 us
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Boot Time Measurement finished
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===================================================================
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PASS - main.
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===================================================================
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PROJECT EXECUTION SUCCESSFUL
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@ -1,7 +0,0 @@
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CONFIG_TEST=y
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CONFIG_BOOT_TIME_MEASUREMENT=y
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CONFIG_TEST_RANDOM_GENERATOR=y
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CONFIG_FORCE_NO_ASSERT=y
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CONFIG_TEST_HW_STACK_PROTECTION=n
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# Disable HW Stack Protection (see #28664)
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CONFIG_HW_STACK_PROTECTION=n
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@ -1,59 +0,0 @@
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/*
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* Copyright (c) 2013-2015 Wind River Systems, Inc.
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* Copyright (c) 2016 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Measure boot time
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*
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* Measuring the boot time
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* 1. From __start to main()
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* 2. From __start to task
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* 3. From __start to idle
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*/
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#include <zephyr.h>
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#include <tc_util.h>
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#include <kernel_internal.h>
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void main(void)
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{
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uint32_t task_time_stamp; /* timestamp at beginning of first task */
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uint32_t main_us; /* begin of main timestamp in us */
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uint32_t task_us; /* begin of task timestamp in us */
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uint32_t idle_us; /* begin of idle timestamp in us */
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task_time_stamp = k_cycle_get_32();
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/*
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* Go to sleep for 1 tick in order to timestamp when idle thread halts.
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*/
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k_sleep(K_MSEC(1));
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main_us = (uint32_t)ceiling_fraction(USEC_PER_SEC *
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(uint64_t)z_timestamp_main,
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sys_clock_hw_cycles_per_sec());
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task_us = (uint32_t)ceiling_fraction(USEC_PER_SEC *
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(uint64_t)task_time_stamp,
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sys_clock_hw_cycles_per_sec());
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idle_us = (uint32_t)ceiling_fraction(USEC_PER_SEC *
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(uint64_t)z_timestamp_idle,
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sys_clock_hw_cycles_per_sec());
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TC_START("Boot Time Measurement");
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TC_PRINT("Boot Result: Clock Frequency: %d Hz\n",
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sys_clock_hw_cycles_per_sec());
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TC_PRINT("_start->main(): %u cycles, %u us\n", z_timestamp_main,
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main_us);
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TC_PRINT("_start->task : %u cycles, %u us\n", task_time_stamp,
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task_us);
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TC_PRINT("_start->idle : %u cycles, %u us\n", z_timestamp_idle,
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idle_us);
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TC_PRINT("Boot Time Measurement finished\n");
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TC_END_RESULT(TC_PASS);
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TC_END_REPORT(TC_PASS);
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}
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@ -1,7 +0,0 @@
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tests:
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benchmark.kernel.boot_time:
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arch_allow: x86 arm posix
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platform_exclude: qemu_x86 qemu_x86_coverage qemu_x86_64 qemu_x86_nommu
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minnowboard acrn acrn_ehl_crb
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tags: benchmark
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filter: CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC >= 1000000
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