9cedc7202c
Change-Id: I0be36b584c99de822920b935c34708576617ffc3 Signed-off-by: GangCao <gang.cao@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8176 Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: <dongx.yi@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "spdk/stdinc.h"
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#include "spdk/zipf.h"
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#include "spdk/histogram_data.h"
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#include "spdk/string.h"
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static void
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usage(const char *prog)
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{
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printf("usage: %s <theta> <range> <count>\n", prog);
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}
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static void
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print_bucket(void *ctx, uint64_t start, uint64_t end, uint64_t count,
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uint64_t total, uint64_t so_far)
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{
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double so_far_pct;
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char range[64];
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if (count == 0) {
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return;
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}
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so_far_pct = (double)so_far * 100 / total;
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snprintf(range, sizeof(range), "[%ju, %ju)", start, end);
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printf("%24s: %9.4f%% (%9ju)\n", range, so_far_pct, count);
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}
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int
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main(int argc, char **argv)
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{
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struct spdk_zipf *zipf;
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struct spdk_histogram_data *h;
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float theta;
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int range, count, i;
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if (argc < 4) {
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usage(argv[0]);
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return 1;
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}
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theta = atof(argv[1]);
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range = spdk_strtol(argv[2], 10);
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count = spdk_strtol(argv[3], 10);
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if (range <= 0 || count <= 0) {
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printf("range and count must be positive integers\n");
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usage(argv[0]);
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return 1;
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}
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zipf = spdk_zipf_create(range, theta, time(NULL));
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h = spdk_histogram_data_alloc();
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if (zipf == NULL || h == NULL) {
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spdk_zipf_free(&zipf);
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spdk_histogram_data_free(h);
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printf("out of resource\n");
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return 1;
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}
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for (i = 0; i < count; i++) {
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spdk_histogram_data_tally(h, spdk_zipf_generate(zipf));
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}
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spdk_histogram_data_iterate(h, print_bucket, NULL);
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spdk_histogram_data_free(h);
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spdk_zipf_free(&zipf);
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return 0;
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}
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