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-rw-r--r--apps/systemlib/perf_counter.c317
1 files changed, 0 insertions, 317 deletions
diff --git a/apps/systemlib/perf_counter.c b/apps/systemlib/perf_counter.c
deleted file mode 100644
index 879f4715a..000000000
--- a/apps/systemlib/perf_counter.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/****************************************************************************
- *
- * Copyright (C) 2012 PX4 Development Team. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. Neither the name PX4 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.
- *
- ****************************************************************************/
-
-/**
- * @file perf_counter.c
- *
- * @brief Performance measuring tools.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <sys/queue.h>
-#include <drivers/drv_hrt.h>
-
-#include "perf_counter.h"
-
-/**
- * Header common to all counters.
- */
-struct perf_ctr_header {
- sq_entry_t link; /**< list linkage */
- enum perf_counter_type type; /**< counter type */
- const char *name; /**< counter name */
-};
-
-/**
- * PC_EVENT counter.
- */
-struct perf_ctr_count {
- struct perf_ctr_header hdr;
- uint64_t event_count;
-};
-
-/**
- * PC_ELAPSED counter.
- */
-struct perf_ctr_elapsed {
- struct perf_ctr_header hdr;
- uint64_t event_count;
- uint64_t time_start;
- uint64_t time_total;
- uint64_t time_least;
- uint64_t time_most;
-};
-
-/**
- * PC_INTERVAL counter.
- */
-struct perf_ctr_interval {
- struct perf_ctr_header hdr;
- uint64_t event_count;
- uint64_t time_event;
- uint64_t time_first;
- uint64_t time_last;
- uint64_t time_least;
- uint64_t time_most;
-
-};
-
-/**
- * List of all known counters.
- */
-static sq_queue_t perf_counters;
-
-
-perf_counter_t
-perf_alloc(enum perf_counter_type type, const char *name)
-{
- perf_counter_t ctr = NULL;
-
- switch (type) {
- case PC_COUNT:
- ctr = (perf_counter_t)calloc(sizeof(struct perf_ctr_count), 1);
- break;
-
- case PC_ELAPSED:
- ctr = (perf_counter_t)calloc(sizeof(struct perf_ctr_elapsed), 1);
- break;
-
- case PC_INTERVAL:
- ctr = (perf_counter_t)calloc(sizeof(struct perf_ctr_interval), 1);
- break;
-
- default:
- break;
- }
-
- if (ctr != NULL) {
- ctr->type = type;
- ctr->name = name;
- sq_addfirst(&ctr->link, &perf_counters);
- }
-
- return ctr;
-}
-
-void
-perf_free(perf_counter_t handle)
-{
- if (handle == NULL)
- return;
-
- sq_rem(&handle->link, &perf_counters);
- free(handle);
-}
-
-void
-perf_count(perf_counter_t handle)
-{
- if (handle == NULL)
- return;
-
- switch (handle->type) {
- case PC_COUNT:
- ((struct perf_ctr_count *)handle)->event_count++;
- break;
-
- case PC_INTERVAL: {
- struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
- hrt_abstime now = hrt_absolute_time();
-
- switch (pci->event_count) {
- case 0:
- pci->time_first = now;
- break;
- case 1:
- pci->time_least = now - pci->time_last;
- pci->time_most = now - pci->time_last;
- break;
- default: {
- hrt_abstime interval = now - pci->time_last;
- if (interval < pci->time_least)
- pci->time_least = interval;
- if (interval > pci->time_most)
- pci->time_most = interval;
- break;
- }
- }
- pci->time_last = now;
- pci->event_count++;
- break;
- }
-
- default:
- break;
- }
-}
-
-void
-perf_begin(perf_counter_t handle)
-{
- if (handle == NULL)
- return;
-
- switch (handle->type) {
- case PC_ELAPSED:
- ((struct perf_ctr_elapsed *)handle)->time_start = hrt_absolute_time();
- break;
-
- default:
- break;
- }
-}
-
-void
-perf_end(perf_counter_t handle)
-{
- if (handle == NULL)
- return;
-
- switch (handle->type) {
- case PC_ELAPSED: {
- struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
- hrt_abstime elapsed = hrt_absolute_time() - pce->time_start;
-
- pce->event_count++;
- pce->time_total += elapsed;
-
- if ((pce->time_least > elapsed) || (pce->time_least == 0))
- pce->time_least = elapsed;
-
- if (pce->time_most < elapsed)
- pce->time_most = elapsed;
- }
-
- default:
- break;
- }
-}
-
-void
-perf_reset(perf_counter_t handle)
-{
- if (handle == NULL)
- return;
-
- switch (handle->type) {
- case PC_COUNT:
- ((struct perf_ctr_count *)handle)->event_count = 0;
- break;
-
- case PC_ELAPSED: {
- struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
- pce->event_count = 0;
- pce->time_start = 0;
- pce->time_total = 0;
- pce->time_least = 0;
- pce->time_most = 0;
- break;
- }
-
- case PC_INTERVAL: {
- struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
- pci->event_count = 0;
- pci->time_event = 0;
- pci->time_first = 0;
- pci->time_last = 0;
- pci->time_least = 0;
- pci->time_most = 0;
- break;
- }
- }
-}
-
-void
-perf_print_counter(perf_counter_t handle)
-{
- if (handle == NULL)
- return;
-
- switch (handle->type) {
- case PC_COUNT:
- printf("%s: %llu events\n",
- handle->name,
- ((struct perf_ctr_count *)handle)->event_count);
- break;
-
- case PC_ELAPSED: {
- struct perf_ctr_elapsed *pce = (struct perf_ctr_elapsed *)handle;
-
- printf("%s: %llu events, %lluus elapsed, min %lluus max %lluus\n",
- handle->name,
- pce->event_count,
- pce->time_total,
- pce->time_least,
- pce->time_most);
- break;
- }
-
- case PC_INTERVAL: {
- struct perf_ctr_interval *pci = (struct perf_ctr_interval *)handle;
-
- printf("%s: %llu events, %llu avg, min %lluus max %lluus\n",
- handle->name,
- pci->event_count,
- (pci->time_last - pci->time_first) / pci->event_count,
- pci->time_least,
- pci->time_most);
- break;
- }
-
- default:
- break;
- }
-}
-
-void
-perf_print_all(void)
-{
- perf_counter_t handle = (perf_counter_t)sq_peek(&perf_counters);
-
- while (handle != NULL) {
- perf_print_counter(handle);
- handle = (perf_counter_t)sq_next(&handle->link);
- }
-}
-
-void
-perf_reset_all(void)
-{
- perf_counter_t handle = (perf_counter_t)sq_peek(&perf_counters);
-
- while (handle != NULL) {
- perf_reset(handle);
- handle = (perf_counter_t)sq_next(&handle->link);
- }
-}
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