742bde12f3
Rename the macro to make things shorter and more comprehensible. For both meson and make builds, keep the old macro around for backward compatibility. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#include "test.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <inttypes.h>
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#include <rte_cycles.h>
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#include <rte_timer.h>
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#include <rte_common.h>
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#include <rte_lcore.h>
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#include <rte_random.h>
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#include <rte_malloc.h>
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#include <rte_pause.h>
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#define MAX_ITERATIONS 1000000
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int outstanding_count = 0;
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static void
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timer_cb(struct rte_timer *t __rte_unused, void *param __rte_unused)
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{
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outstanding_count--;
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}
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#define DELAY_SECONDS 1
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#ifdef RTE_EXEC_ENV_LINUX
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#define do_delay() usleep(10)
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#else
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#define do_delay() rte_pause()
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#endif
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static int
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test_timer_perf(void)
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{
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unsigned iterations = 100;
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unsigned i;
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struct rte_timer *tms;
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uint64_t start_tsc, end_tsc, delay_start;
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unsigned lcore_id = rte_lcore_id();
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tms = rte_malloc(NULL, sizeof(*tms) * MAX_ITERATIONS, 0);
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for (i = 0; i < MAX_ITERATIONS; i++)
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rte_timer_init(&tms[i]);
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const uint64_t ticks = rte_get_timer_hz() * DELAY_SECONDS;
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const uint64_t ticks_per_ms = rte_get_tsc_hz()/1000;
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const uint64_t ticks_per_us = ticks_per_ms/1000;
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while (iterations <= MAX_ITERATIONS) {
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printf("Appending %u timers\n", iterations);
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start_tsc = rte_rdtsc();
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for (i = 0; i < iterations; i++)
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rte_timer_reset(&tms[i], ticks, SINGLE, lcore_id,
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timer_cb, NULL);
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end_tsc = rte_rdtsc();
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printf("Time for %u timers: %"PRIu64" (%"PRIu64"ms), ", iterations,
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end_tsc-start_tsc, (end_tsc-start_tsc+ticks_per_ms/2)/(ticks_per_ms));
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printf("Time per timer: %"PRIu64" (%"PRIu64"us)\n",
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(end_tsc-start_tsc)/iterations,
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((end_tsc-start_tsc)/iterations+ticks_per_us/2)/(ticks_per_us));
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outstanding_count = iterations;
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delay_start = rte_get_timer_cycles();
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while (rte_get_timer_cycles() < delay_start + ticks)
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do_delay();
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start_tsc = rte_rdtsc();
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while (outstanding_count)
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rte_timer_manage();
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end_tsc = rte_rdtsc();
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printf("Time for %u callbacks: %"PRIu64" (%"PRIu64"ms), ", iterations,
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end_tsc-start_tsc, (end_tsc-start_tsc+ticks_per_ms/2)/(ticks_per_ms));
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printf("Time per callback: %"PRIu64" (%"PRIu64"us)\n",
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(end_tsc-start_tsc)/iterations,
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((end_tsc-start_tsc)/iterations+ticks_per_us/2)/(ticks_per_us));
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printf("Resetting %u timers\n", iterations);
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start_tsc = rte_rdtsc();
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for (i = 0; i < iterations; i++)
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rte_timer_reset(&tms[i], rte_rand() % ticks, SINGLE, lcore_id,
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timer_cb, NULL);
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end_tsc = rte_rdtsc();
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printf("Time for %u timers: %"PRIu64" (%"PRIu64"ms), ", iterations,
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end_tsc-start_tsc, (end_tsc-start_tsc+ticks_per_ms/2)/(ticks_per_ms));
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printf("Time per timer: %"PRIu64" (%"PRIu64"us)\n",
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(end_tsc-start_tsc)/iterations,
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((end_tsc-start_tsc)/iterations+ticks_per_us/2)/(ticks_per_us));
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outstanding_count = iterations;
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delay_start = rte_get_timer_cycles();
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while (rte_get_timer_cycles() < delay_start + ticks)
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do_delay();
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rte_timer_manage();
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if (outstanding_count != 0) {
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printf("Error: outstanding callback count = %d\n", outstanding_count);
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return -1;
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}
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iterations *= 10;
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printf("\n");
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}
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printf("All timers processed ok\n");
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/* measure time to poll an empty timer list */
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start_tsc = rte_rdtsc();
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for (i = 0; i < iterations; i++)
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rte_timer_manage();
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end_tsc = rte_rdtsc();
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printf("\nTime per rte_timer_manage with zero timers: %"PRIu64" cycles\n",
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(end_tsc - start_tsc + iterations/2) / iterations);
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/* measure time to poll a timer list with timers, but without
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* calling any callbacks */
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rte_timer_reset(&tms[0], ticks * 100, SINGLE, lcore_id,
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timer_cb, NULL);
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start_tsc = rte_rdtsc();
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for (i = 0; i < iterations; i++)
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rte_timer_manage();
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end_tsc = rte_rdtsc();
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printf("Time per rte_timer_manage with zero callbacks: %"PRIu64" cycles\n",
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(end_tsc - start_tsc + iterations/2) / iterations);
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rte_free(tms);
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return 0;
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}
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REGISTER_TEST_COMMAND(timer_perf_autotest, test_timer_perf);
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