Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 180 insertions, 0 deletions

diff --git a/src/spdk/test/event/event_perf/event_perf.c b/src/spdk/test/event/event_perf/event_perf.c
new file mode 100644
index 00000000..917ea950
--- /dev/null
+++ b/src/spdk/test/event/event_perf/event_perf.c
@@ -0,0 +1,180 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   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 "spdk/stdinc.h"
+
+#include "spdk/env.h"
+#include "spdk/event.h"
+#include "spdk_internal/event.h"
+#include "spdk/log.h"
+
+static uint64_t g_tsc_rate;
+static uint64_t g_tsc_us_rate;
+static uint64_t g_tsc_end;
+
+static int g_time_in_sec;
+
+static uint64_t *call_count;
+
+static bool g_app_stopped = false;
+
+static void
+submit_new_event(void *arg1, void *arg2)
+{
+	struct spdk_event *event;
+	static __thread uint32_t next_lcore = UINT32_MAX;
+
+	if (spdk_get_ticks() > g_tsc_end) {
+		if (__sync_bool_compare_and_swap(&g_app_stopped, false, true)) {
+			spdk_app_stop(0);
+		}
+		return;
+	}
+
+	if (next_lcore == UINT32_MAX) {
+		next_lcore = spdk_env_get_next_core(spdk_env_get_current_core());
+		if (next_lcore == UINT32_MAX) {
+			next_lcore = spdk_env_get_first_core();
+		}
+	}
+
+	call_count[next_lcore]++;
+	event = spdk_event_allocate(next_lcore, submit_new_event, NULL, NULL);
+	spdk_event_call(event);
+}
+
+static void
+event_work_fn(void *arg1, void *arg2)
+{
+
+	submit_new_event(NULL, NULL);
+	submit_new_event(NULL, NULL);
+	submit_new_event(NULL, NULL);
+	submit_new_event(NULL, NULL);
+}
+
+static void
+event_perf_start(void *arg1, void *arg2)
+{
+	uint32_t i;
+
+	call_count = calloc(spdk_env_get_last_core() + 1, sizeof(*call_count));
+	if (call_count == NULL) {
+		fprintf(stderr, "call_count allocation failed\n");
+		spdk_app_stop(1);
+		return;
+	}
+
+	g_tsc_rate = spdk_get_ticks_hz();
+	g_tsc_us_rate = g_tsc_rate / (1000 * 1000);
+	g_tsc_end = spdk_get_ticks() + g_time_in_sec * g_tsc_rate;
+
+	printf("Running I/O for %d seconds...", g_time_in_sec);
+	fflush(stdout);
+
+	SPDK_ENV_FOREACH_CORE(i) {
+		spdk_event_call(spdk_event_allocate(i, event_work_fn,
+						    NULL, NULL));
+	}
+
+}
+
+static void
+usage(char *program_name)
+{
+	printf("%s options\n", program_name);
+	printf("\t[-m core mask for distributing I/O submission/completion work\n");
+	printf("\t\t(default: 0x1 - use core 0 only)]\n");
+	printf("\t[-t time in seconds]\n");
+}
+
+static void
+performance_dump(int io_time)
+{
+	uint32_t i;
+
+	if (call_count == NULL) {
+		return;
+	}
+
+	printf("\n");
+	SPDK_ENV_FOREACH_CORE(i) {
+		printf("lcore %2d: %8ju\n", i, call_count[i] / g_time_in_sec);
+	}
+
+	fflush(stdout);
+	free(call_count);
+}
+
+int
+main(int argc, char **argv)
+{
+	struct spdk_app_opts opts = {};
+	int op;
+	int rc = 0;
+
+	opts.name = "event_perf";
+	opts.mem_size = 256;
+
+	g_time_in_sec = 0;
+
+	while ((op = getopt(argc, argv, "m:t:")) != -1) {
+		switch (op) {
+		case 'm':
+			opts.reactor_mask = optarg;
+			break;
+		case 't':
+			g_time_in_sec = atoi(optarg);
+			break;
+		default:
+			usage(argv[0]);
+			exit(1);
+		}
+	}
+
+	if (!g_time_in_sec) {
+		usage(argv[0]);
+		exit(1);
+	}
+
+	printf("Running I/O for %d seconds...", g_time_in_sec);
+	fflush(stdout);
+
+	rc = spdk_app_start(&opts, event_perf_start, NULL, NULL);
+
+	spdk_app_fini();
+	performance_dump(g_time_in_sec);
+
+	printf("done.\n");
+	return rc;
+}