1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019 Intel Corporation
5 #include <rte_malloc.h>
8 #include <rte_compressdev.h>
10 #include "comp_perf.h"
11 #include "comp_perf_options.h"
12 #include "comp_perf_test_benchmark.h"
13 #include "comp_perf_test_common.h"
14 #include "comp_perf_test_verify.h"
17 #define DIV_CEIL(a, b) ((a) / (b) + ((a) % (b) != 0))
19 struct cperf_buffer_info {
20 uint16_t total_segments;
22 uint16_t last_segment_sz;
23 uint32_t total_buffs; /*number of buffers = number of ops*/
24 uint16_t segments_per_buff;
25 uint16_t segments_per_last_buff;
29 static struct cperf_buffer_info buffer_info;
32 param_range_check(uint16_t size, const struct rte_param_log2_range *range)
34 unsigned int next_size;
36 /* Check lower/upper bounds */
37 if (size < range->min)
40 if (size > range->max)
43 /* If range is actually only one value, size is correct */
44 if (range->increment == 0)
47 /* Check if value is one of the supported sizes */
48 for (next_size = range->min; next_size <= range->max;
49 next_size += range->increment)
50 if (size == next_size)
57 find_buf_size(uint32_t input_size)
61 /* From performance point of view the buffer size should be a
62 * power of 2 but also should be enough to store incompressible data
65 /* We're looking for nearest power of 2 buffer size, which is greater
69 !input_size ? MIN_COMPRESSED_BUF_SIZE : (input_size << 1);
71 for (i = UINT16_MAX + 1; !(i & size); i >>= 1)
74 return i > ((UINT16_MAX + 1) >> 1)
75 ? (uint32_t)((float)input_size * EXPANSE_RATIO)
80 comp_perf_free_memory(struct cperf_mem_resources *mem)
84 for (i = 0; i < mem->total_bufs; i++) {
85 rte_pktmbuf_free(mem->comp_bufs[i]);
86 rte_pktmbuf_free(mem->decomp_bufs[i]);
89 rte_free(mem->decomp_bufs);
90 rte_free(mem->comp_bufs);
91 rte_free(mem->decompressed_data);
92 rte_free(mem->compressed_data);
93 rte_mempool_free(mem->op_pool);
94 rte_mempool_free(mem->decomp_buf_pool);
95 rte_mempool_free(mem->comp_buf_pool);
99 comp_perf_allocate_memory(struct comp_test_data *test_data,
100 struct cperf_mem_resources *mem)
102 test_data->out_seg_sz = find_buf_size(test_data->seg_sz);
103 /* Number of segments for input and output
104 * (compression and decompression)
106 uint32_t total_segs = DIV_CEIL(test_data->input_data_sz,
108 char pool_name[32] = "";
110 snprintf(pool_name, sizeof(pool_name), "comp_buf_pool_%u_qp_%u",
111 mem->dev_id, mem->qp_id);
112 mem->comp_buf_pool = rte_pktmbuf_pool_create(pool_name,
115 test_data->out_seg_sz + RTE_PKTMBUF_HEADROOM,
117 if (mem->comp_buf_pool == NULL) {
118 RTE_LOG(ERR, USER1, "Mbuf mempool could not be created\n");
122 snprintf(pool_name, sizeof(pool_name), "decomp_buf_pool_%u_qp_%u",
123 mem->dev_id, mem->qp_id);
124 mem->decomp_buf_pool = rte_pktmbuf_pool_create(pool_name,
126 0, 0, test_data->seg_sz + RTE_PKTMBUF_HEADROOM,
128 if (mem->decomp_buf_pool == NULL) {
129 RTE_LOG(ERR, USER1, "Mbuf mempool could not be created\n");
133 mem->total_bufs = DIV_CEIL(total_segs, test_data->max_sgl_segs);
135 snprintf(pool_name, sizeof(pool_name), "op_pool_%u_qp_%u",
136 mem->dev_id, mem->qp_id);
137 mem->op_pool = rte_comp_op_pool_create(pool_name,
139 0, 0, rte_socket_id());
140 if (mem->op_pool == NULL) {
141 RTE_LOG(ERR, USER1, "Comp op mempool could not be created\n");
146 * Compressed data might be a bit larger than input data,
147 * if data cannot be compressed
149 mem->compressed_data = rte_zmalloc_socket(NULL,
151 (size_t) test_data->out_seg_sz * total_segs,
152 (size_t) MIN_COMPRESSED_BUF_SIZE),
155 if (mem->compressed_data == NULL) {
156 RTE_LOG(ERR, USER1, "Memory to hold the data from the input "
157 "file could not be allocated\n");
161 mem->decompressed_data = rte_zmalloc_socket(NULL,
162 test_data->input_data_sz, 0,
164 if (mem->decompressed_data == NULL) {
165 RTE_LOG(ERR, USER1, "Memory to hold the data from the input "
166 "file could not be allocated\n");
170 mem->comp_bufs = rte_zmalloc_socket(NULL,
171 mem->total_bufs * sizeof(struct rte_mbuf *),
173 if (mem->comp_bufs == NULL) {
174 RTE_LOG(ERR, USER1, "Memory to hold the compression mbufs"
175 " could not be allocated\n");
179 mem->decomp_bufs = rte_zmalloc_socket(NULL,
180 mem->total_bufs * sizeof(struct rte_mbuf *),
182 if (mem->decomp_bufs == NULL) {
183 RTE_LOG(ERR, USER1, "Memory to hold the decompression mbufs"
184 " could not be allocated\n");
188 buffer_info.total_segments = total_segs;
189 buffer_info.segment_sz = test_data->seg_sz;
190 buffer_info.total_buffs = mem->total_bufs;
191 buffer_info.segments_per_buff = test_data->max_sgl_segs;
192 buffer_info.input_data_sz = test_data->input_data_sz;
198 prepare_bufs(struct comp_test_data *test_data, struct cperf_mem_resources *mem)
200 uint32_t remaining_data = test_data->input_data_sz;
201 uint8_t *input_data_ptr = test_data->input_data;
205 uint16_t segs_per_mbuf = 0;
207 for (i = 0; i < mem->total_bufs; i++) {
208 /* Allocate data in input mbuf and copy data from input file */
209 mem->decomp_bufs[i] =
210 rte_pktmbuf_alloc(mem->decomp_buf_pool);
211 if (mem->decomp_bufs[i] == NULL) {
212 RTE_LOG(ERR, USER1, "Could not allocate mbuf\n");
216 data_sz = RTE_MIN(remaining_data, test_data->seg_sz);
217 data_addr = (uint8_t *) rte_pktmbuf_append(
218 mem->decomp_bufs[i], data_sz);
219 if (data_addr == NULL) {
220 RTE_LOG(ERR, USER1, "Could not append data\n");
223 rte_memcpy(data_addr, input_data_ptr, data_sz);
225 input_data_ptr += data_sz;
226 remaining_data -= data_sz;
228 /* Already one segment in the mbuf */
231 /* Chain mbufs if needed for input mbufs */
232 while (segs_per_mbuf < test_data->max_sgl_segs
233 && remaining_data > 0) {
234 struct rte_mbuf *next_seg =
235 rte_pktmbuf_alloc(mem->decomp_buf_pool);
237 if (next_seg == NULL) {
239 "Could not allocate mbuf\n");
243 data_sz = RTE_MIN(remaining_data, test_data->seg_sz);
244 data_addr = (uint8_t *)rte_pktmbuf_append(next_seg,
247 if (data_addr == NULL) {
248 RTE_LOG(ERR, USER1, "Could not append data\n");
252 rte_memcpy(data_addr, input_data_ptr, data_sz);
253 input_data_ptr += data_sz;
254 remaining_data -= data_sz;
256 if (rte_pktmbuf_chain(mem->decomp_bufs[i],
258 RTE_LOG(ERR, USER1, "Could not chain mbufs\n");
264 /* Allocate data in output mbuf */
266 rte_pktmbuf_alloc(mem->comp_buf_pool);
267 if (mem->comp_bufs[i] == NULL) {
268 RTE_LOG(ERR, USER1, "Could not allocate mbuf\n");
271 data_addr = (uint8_t *) rte_pktmbuf_append(
273 test_data->out_seg_sz);
274 if (data_addr == NULL) {
275 RTE_LOG(ERR, USER1, "Could not append data\n");
279 /* Chain mbufs if needed for output mbufs */
280 for (j = 1; j < segs_per_mbuf; j++) {
281 struct rte_mbuf *next_seg =
282 rte_pktmbuf_alloc(mem->comp_buf_pool);
284 if (next_seg == NULL) {
286 "Could not allocate mbuf\n");
290 data_addr = (uint8_t *)rte_pktmbuf_append(next_seg,
291 test_data->out_seg_sz);
292 if (data_addr == NULL) {
293 RTE_LOG(ERR, USER1, "Could not append data\n");
297 if (rte_pktmbuf_chain(mem->comp_bufs[i],
299 RTE_LOG(ERR, USER1, "Could not chain mbufs\n");
305 buffer_info.segments_per_last_buff = segs_per_mbuf;
306 buffer_info.last_segment_sz = data_sz;
312 print_test_dynamics(void)
314 uint32_t opt_total_segs = DIV_CEIL(buffer_info.input_data_sz,
317 if (buffer_info.total_buffs > 1) {
318 printf("\nWarning: for the current input parameters, number"
319 " of ops is higher than one, which may result"
320 " in sub-optimal performance.\n");
321 printf("To improve the performance (for the current"
322 " input data) following parameters are"
324 printf(" * Segment size: %d\n", MAX_SEG_SIZE);
325 printf(" * Number of segments: %u\n", opt_total_segs);
326 } else if (buffer_info.total_buffs == 1) {
327 printf("\nInfo: there is only one op with %u segments -"
328 " the compression ratio is the best.\n",
329 buffer_info.segments_per_last_buff);
330 if (buffer_info.segment_sz < MAX_SEG_SIZE)
331 printf("To reduce compression time, please use"
332 " bigger segment size: %d.\n",
334 else if (buffer_info.segment_sz == MAX_SEG_SIZE)
335 printf("Segment size is optimal for the best"
338 printf("Warning: something wrong happened!!\n");
340 printf("\nFor the current input parameters (segment size = %u,"
341 " maximum segments per SGL = %u):\n",
342 buffer_info.segment_sz,
343 buffer_info.segments_per_buff);
344 printf(" * Total number of buffers: %d\n",
345 buffer_info.total_segments);
346 printf(" * %u buffer(s) %u bytes long, last buffer %u"
348 buffer_info.total_segments - 1,
349 buffer_info.segment_sz,
350 buffer_info.last_segment_sz);
351 printf(" * Number of ops: %u\n", buffer_info.total_buffs);
352 printf(" * Total memory allocation: %u\n",
353 (buffer_info.total_segments - 1) * buffer_info.segment_sz
354 + buffer_info.last_segment_sz);
355 if (buffer_info.total_buffs > 1)
356 printf(" * %u ops: %u segment(s) in each,"
357 " segment size %u\n",
358 buffer_info.total_buffs - 1,
359 buffer_info.segments_per_buff,
360 buffer_info.segment_sz);
361 if (buffer_info.segments_per_last_buff > 1) {
362 printf(" * 1 op %u segments:\n",
363 buffer_info.segments_per_last_buff);
364 printf(" o %u segment size %u\n",
365 buffer_info.segments_per_last_buff - 1,
366 buffer_info.segment_sz);
367 printf(" o last segment size %u\n",
368 buffer_info.last_segment_sz);
369 } else if (buffer_info.segments_per_last_buff == 1) {
370 printf(" * 1 op (the last one): %u segment %u"
372 buffer_info.segments_per_last_buff,
373 buffer_info.last_segment_sz);