1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*  cpufreq-bench CPUFreq microbenchmark
43  * @retval -1 when failed
54 		return -1;  in set_cpufreq_governor()
60 		return -1;  in set_cpufreq_governor()
67  * sets cpu affinity for the process
69  * @param cpu cpu# to which the affinity should be set
72  * @retval -1 when setting the affinity failed
82 	dprintf("set affinity to cpu #%u\n", cpu);  in set_cpu_affinity()
86 		fprintf(stderr, "warning: unable to set cpu affinity\n");  in set_cpu_affinity()
87 		return -1;  in set_cpu_affinity()
99  * @retval -1 when setting the priority failed
113 		return -1;  in set_process_priority()
132 	for (round = 0; round < config->rounds; round++) {  in prepare_user()
133 		sleep_time +=  2 * config->cycles *  in prepare_user()
134 			(config->sleep + config->sleep_step * round);  in prepare_user()
135 		load_time += 2 * config->cycles *  in prepare_user()
136 			(config->load + config->load_step * round) +  in prepare_user()
137 			(config->load + config->load_step * round * 4);  in prepare_user()
140 	if (config->verbose || config->output != stdout)  in prepare_user()
146  * sets up the cpu affinity and scheduler priority
154 	if (config->verbose)  in prepare_system()
155 		printf("set cpu affinity to cpu #%u\n", config->cpu);  in prepare_system()
157 	set_cpu_affinity(config->cpu);  in prepare_system()
159 	switch (config->prio) {  in prepare_system()
161 		if (config->verbose)  in prepare_system()
167 		if (config->verbose)  in prepare_system()
173 		if (config->verbose)  in prepare_system()