a6dbe3721e
per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: Mellanox Build Bot
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright (C) 2017 Intel Corporation.
|
|
* All rights reserved.
|
|
*/
|
|
|
|
#include "spdk/stdinc.h"
|
|
|
|
#include "spdk/env.h"
|
|
#include "spdk/util.h"
|
|
#include "spdk/histogram_data.h"
|
|
|
|
/*
|
|
* This applications is a simple test app used to test the performance of
|
|
* tallying datapoints with struct spdk_histogram_data. It can be used
|
|
* to measure the effect of changes to the spdk_histogram_data implementation.
|
|
*
|
|
* There are no command line parameters currently - it just tallies
|
|
* datapoints for 10 seconds in a default-sized histogram structure and
|
|
* then prints out the number of tallies performed.
|
|
*/
|
|
|
|
static void
|
|
usage(const char *prog)
|
|
{
|
|
printf("usage: %s\n", prog);
|
|
printf("Options:\n");
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
struct spdk_histogram_data *h;
|
|
struct spdk_env_opts opts;
|
|
uint64_t tsc[128], t, end_tsc, count;
|
|
uint32_t i;
|
|
int ch;
|
|
int rc = 0;
|
|
|
|
while ((ch = getopt(argc, argv, "")) != -1) {
|
|
switch (ch) {
|
|
default:
|
|
usage(argv[0]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
spdk_env_opts_init(&opts);
|
|
if (spdk_env_init(&opts)) {
|
|
printf("Err: Unable to initialize SPDK env\n");
|
|
return 1;
|
|
}
|
|
|
|
for (i = 0; i < SPDK_COUNTOF(tsc); i++) {
|
|
tsc[i] = spdk_get_ticks();
|
|
}
|
|
|
|
end_tsc = spdk_get_ticks() + (10 * spdk_get_ticks_hz());
|
|
count = 0;
|
|
h = spdk_histogram_data_alloc();
|
|
|
|
while (true) {
|
|
t = spdk_get_ticks();
|
|
spdk_histogram_data_tally(h, t - tsc[count % 128]);
|
|
count++;
|
|
if (t > end_tsc) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
printf("count = %ju\n", count);
|
|
spdk_histogram_data_free(h);
|
|
|
|
spdk_env_fini();
|
|
return rc;
|
|
}
|