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Diffstat (limited to 'app/test/test_timer_perf.c')
| -rw-r--r-- | app/test/test_timer_perf.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/app/test/test_timer_perf.c b/app/test/test_timer_perf.c deleted file mode 100644 index fa77efbd..00000000 --- a/app/test/test_timer_perf.c +++ /dev/null @@ -1,161 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "test.h" - -#include <stdio.h> -#include <unistd.h> -#include <inttypes.h> -#include <rte_cycles.h> -#include <rte_timer.h> -#include <rte_common.h> -#include <rte_lcore.h> -#include <rte_random.h> -#include <rte_malloc.h> - -#define MAX_ITERATIONS 1000000 - -int outstanding_count = 0; - -static void -timer_cb(struct rte_timer *t __rte_unused, void *param __rte_unused) -{ - outstanding_count--; -} - -#define DELAY_SECONDS 1 - -#ifdef RTE_EXEC_ENV_LINUXAPP -#define do_delay() usleep(10) -#else -#define do_delay() rte_pause() -#endif - -static int -test_timer_perf(void) -{ - unsigned iterations = 100; - unsigned i; - struct rte_timer *tms; - uint64_t start_tsc, end_tsc, delay_start; - unsigned lcore_id = rte_lcore_id(); - - tms = rte_malloc(NULL, sizeof(*tms) * MAX_ITERATIONS, 0); - - for (i = 0; i < MAX_ITERATIONS; i++) - rte_timer_init(&tms[i]); - - const uint64_t ticks = rte_get_timer_hz() * DELAY_SECONDS; - const uint64_t ticks_per_ms = rte_get_tsc_hz()/1000; - const uint64_t ticks_per_us = ticks_per_ms/1000; - - while (iterations <= MAX_ITERATIONS) { - - printf("Appending %u timers\n", iterations); - start_tsc = rte_rdtsc(); - for (i = 0; i < iterations; i++) - rte_timer_reset(&tms[i], ticks, SINGLE, lcore_id, - timer_cb, NULL); - end_tsc = rte_rdtsc(); - printf("Time for %u timers: %"PRIu64" (%"PRIu64"ms), ", iterations, - end_tsc-start_tsc, (end_tsc-start_tsc+ticks_per_ms/2)/(ticks_per_ms)); - printf("Time per timer: %"PRIu64" (%"PRIu64"us)\n", - (end_tsc-start_tsc)/iterations, - ((end_tsc-start_tsc)/iterations+ticks_per_us/2)/(ticks_per_us)); - outstanding_count = iterations; - delay_start = rte_get_timer_cycles(); - while (rte_get_timer_cycles() < delay_start + ticks) - do_delay(); - - start_tsc = rte_rdtsc(); - while (outstanding_count) - rte_timer_manage(); - end_tsc = rte_rdtsc(); - printf("Time for %u callbacks: %"PRIu64" (%"PRIu64"ms), ", iterations, - end_tsc-start_tsc, (end_tsc-start_tsc+ticks_per_ms/2)/(ticks_per_ms)); - printf("Time per callback: %"PRIu64" (%"PRIu64"us)\n", - (end_tsc-start_tsc)/iterations, - ((end_tsc-start_tsc)/iterations+ticks_per_us/2)/(ticks_per_us)); - - printf("Resetting %u timers\n", iterations); - start_tsc = rte_rdtsc(); - for (i = 0; i < iterations; i++) - rte_timer_reset(&tms[i], rte_rand() % ticks, SINGLE, lcore_id, - timer_cb, NULL); - end_tsc = rte_rdtsc(); - printf("Time for %u timers: %"PRIu64" (%"PRIu64"ms), ", iterations, - end_tsc-start_tsc, (end_tsc-start_tsc+ticks_per_ms/2)/(ticks_per_ms)); - printf("Time per timer: %"PRIu64" (%"PRIu64"us)\n", - (end_tsc-start_tsc)/iterations, - ((end_tsc-start_tsc)/iterations+ticks_per_us/2)/(ticks_per_us)); - outstanding_count = iterations; - - delay_start = rte_get_timer_cycles(); - while (rte_get_timer_cycles() < delay_start + ticks) - do_delay(); - - rte_timer_manage(); - if (outstanding_count != 0) { - printf("Error: outstanding callback count = %d\n", outstanding_count); - return -1; - } - - iterations *= 10; - printf("\n"); - } - - printf("All timers processed ok\n"); - - /* measure time to poll an empty timer list */ - start_tsc = rte_rdtsc(); - for (i = 0; i < iterations; i++) - rte_timer_manage(); - end_tsc = rte_rdtsc(); - printf("\nTime per rte_timer_manage with zero timers: %"PRIu64" cycles\n", - (end_tsc - start_tsc + iterations/2) / iterations); - - /* measure time to poll a timer list with timers, but without - * calling any callbacks */ - rte_timer_reset(&tms[0], ticks * 100, SINGLE, lcore_id, - timer_cb, NULL); - start_tsc = rte_rdtsc(); - for (i = 0; i < iterations; i++) - rte_timer_manage(); - end_tsc = rte_rdtsc(); - printf("Time per rte_timer_manage with zero callbacks: %"PRIu64" cycles\n", - (end_tsc - start_tsc + iterations/2) / iterations); - - return 0; -} - -REGISTER_TEST_COMMAND(timer_perf_autotest, test_timer_perf); |