2 * Copyright (C) 2013 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef __BANDWIDTH_H__
18 #define __BANDWIDTH_H__
22 // Bandwidth Class definitions.
23 class BandwidthBenchmark {
27 _num_warm_loops(DEFAULT_NUM_WARM_LOOPS),
28 _num_loops(DEFAULT_NUM_LOOPS) {}
29 virtual ~BandwidthBenchmark() {}
39 bench(_num_warm_loops);
41 nsecs_t t = system_time();
43 t = system_time() - t;
45 _mb_per_sec = (_size*(_num_loops/_BYTES_PER_MB))/(t/_NUM_NS_PER_SEC);
50 bool canRun() { return !usesNeon() || isNeonSupported(); }
52 virtual bool setSize(size_t size) = 0;
54 virtual const char *getName() = 0;
56 virtual bool verify() = 0;
58 virtual bool usesNeon() { return false; }
60 bool isNeonSupported() {
61 #if defined(__ARM_NEON__)
68 // Accessors/mutators.
69 double mb_per_sec() { return _mb_per_sec; }
70 size_t num_warm_loops() { return _num_warm_loops; }
71 size_t num_loops() { return _num_loops; }
72 size_t size() { return _size; }
74 void set_num_warm_loops(size_t num_warm_loops) {
75 _num_warm_loops = num_warm_loops;
77 void set_num_loops(size_t num_loops) { _num_loops = num_loops; }
80 static const unsigned int DEFAULT_NUM_WARM_LOOPS = 1000000;
81 static const unsigned int DEFAULT_NUM_LOOPS = 20000000;
84 virtual void bench(size_t num_loops) = 0;
88 size_t _num_warm_loops;
93 static const double _NUM_NS_PER_SEC = 1000000000.0;
94 static const double _BYTES_PER_MB = 1024.0* 1024.0;
97 class CopyBandwidthBenchmark : public BandwidthBenchmark {
99 CopyBandwidthBenchmark() : BandwidthBenchmark(), _src(NULL), _dst(NULL) { }
101 bool setSize(size_t size) {
110 _size = DEFAULT_COPY_SIZE;
115 _src = reinterpret_cast<char*>(memalign(64, _size));
117 perror("Failed to allocate memory for test.");
120 _dst = reinterpret_cast<char*>(memalign(64, _size));
122 perror("Failed to allocate memory for test.");
128 virtual ~CopyBandwidthBenchmark() {
140 memset(_src, 0x23, _size);
141 memset(_dst, 0, _size);
143 if (memcmp(_src, _dst, _size) != 0) {
144 printf("Strings failed to compare after one loop.\n");
148 memset(_src, 0x23, _size);
149 memset(_dst, 0, _size);
152 if (memcmp(_src, _dst, _size) != 0) {
153 printf("Strings failed to compare after two loops.\n");
164 static const unsigned int DEFAULT_COPY_SIZE = 8000;
167 class CopyLdrdStrdBenchmark : public CopyBandwidthBenchmark {
169 CopyLdrdStrdBenchmark() : CopyBandwidthBenchmark() { }
170 virtual ~CopyLdrdStrdBenchmark() {}
172 const char *getName() { return "ldrd/strd"; }
175 // Copy using ldrd/strd instructions.
176 void bench(size_t num_loops) {
178 "stmfd sp!, {r0,r1,r2,r3,r4,r6,r7}\n"
186 "mov r4, r2, lsr #6\n"
189 "ldrd r6, r7, [r0]\n"
190 "strd r6, r7, [r1]\n"
191 "ldrd r6, r7, [r0, #8]\n"
192 "strd r6, r7, [r1, #8]\n"
193 "ldrd r6, r7, [r0, #16]\n"
194 "strd r6, r7, [r1, #16]\n"
195 "ldrd r6, r7, [r0, #24]\n"
196 "strd r6, r7, [r1, #24]\n"
197 "ldrd r6, r7, [r0, #32]\n"
198 "strd r6, r7, [r1, #32]\n"
199 "ldrd r6, r7, [r0, #40]\n"
200 "strd r6, r7, [r1, #40]\n"
201 "ldrd r6, r7, [r0, #48]\n"
202 "strd r6, r7, [r1, #48]\n"
203 "ldrd r6, r7, [r0, #56]\n"
204 "strd r6, r7, [r1, #56]\n"
216 "ldmfd sp!, {r0,r1,r2,r3,r4,r6,r7}\n"
217 :: "r" (_src), "r" (_dst), "r" (_size), "r" (num_loops) : "r0", "r1", "r2", "r3");
221 class CopyLdmiaStmiaBenchmark : public CopyBandwidthBenchmark {
223 CopyLdmiaStmiaBenchmark() : CopyBandwidthBenchmark() { }
224 virtual ~CopyLdmiaStmiaBenchmark() {}
226 const char *getName() { return "ldmia/stmia"; }
229 // Copy using ldmia/stmia instructions.
230 void bench(size_t num_loops) {
232 "stmfd sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12}\n"
240 "mov r4, r2, lsr #6\n"
243 "ldmia r0!, {r5, r6, r7, r8, r9, r10, r11, r12}\n"
244 "stmia r1!, {r5, r6, r7, r8, r9, r10, r11, r12}\n"
246 "ldmia r0!, {r5, r6, r7, r8, r9, r10, r11, r12}\n"
247 "stmia r1!, {r5, r6, r7, r8, r9, r10, r11, r12}\n"
255 "ldmfd sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12}\n"
256 :: "r" (_src), "r" (_dst), "r" (_size), "r" (num_loops) : "r0", "r1", "r2", "r3");
260 class CopyVldVstBenchmark : public CopyBandwidthBenchmark {
262 CopyVldVstBenchmark() : CopyBandwidthBenchmark() { }
263 virtual ~CopyVldVstBenchmark() {}
265 const char *getName() { return "vld/vst"; }
267 bool usesNeon() { return true; }
270 // Copy using vld/vst instructions.
271 void bench(size_t num_loops) {
272 #if defined(__ARM_NEON__)
274 "stmfd sp!, {r0,r1,r2,r3,r4}\n"
282 "mov r4, r2, lsr #6\n"
285 "vld1.8 {d0-d3}, [r0]!\n"
286 "vld1.8 {d4-d7}, [r0]!\n"
288 "vst1.8 {d0-d3}, [r1:128]!\n"
289 "vst1.8 {d4-d7}, [r1:128]!\n"
297 "ldmfd sp!, {r0,r1,r2,r3,r4}\n"
298 :: "r" (_src), "r" (_dst), "r" (_size), "r" (num_loops) : "r0", "r1", "r2", "r3");
303 class CopyVldmiaVstmiaBenchmark : public CopyBandwidthBenchmark {
305 CopyVldmiaVstmiaBenchmark() : CopyBandwidthBenchmark() { }
306 virtual ~CopyVldmiaVstmiaBenchmark() {}
308 const char *getName() { return "vldmia/vstmia"; }
310 bool usesNeon() { return true; }
313 // Copy using vld/vst instructions.
314 void bench(size_t num_loops) {
315 #if defined(__ARM_NEON__)
317 "stmfd sp!, {r0,r1,r2,r3,r4}\n"
325 "mov r4, r2, lsr #6\n"
328 "vldmia r0!, {d0-d7}\n"
330 "vstmia r1!, {d0-d7}\n"
338 "ldmfd sp!, {r0,r1,r2,r3,r4}\n"
339 :: "r" (_src), "r" (_dst), "r" (_size), "r" (num_loops) : "r0", "r1", "r2", "r3");
344 class MemcpyBenchmark : public CopyBandwidthBenchmark {
346 MemcpyBenchmark() : CopyBandwidthBenchmark() { }
347 virtual ~MemcpyBenchmark() {}
349 const char *getName() { return "memcpy"; }
352 void bench(size_t num_loops) {
353 for (size_t i = 0; i < num_loops; i++) {
354 memcpy(_dst, _src, _size);
359 class SingleBufferBandwidthBenchmark : public BandwidthBenchmark {
361 SingleBufferBandwidthBenchmark() : BandwidthBenchmark(), _buffer(NULL) { }
362 virtual ~SingleBufferBandwidthBenchmark() {
369 bool setSize(size_t size) {
376 _size = DEFAULT_SINGLE_BUFFER_SIZE;
381 _buffer = reinterpret_cast<char*>(memalign(64, _size));
383 perror("Failed to allocate memory for test.");
386 memset(_buffer, 0, _size);
391 bool verify() { return true; }
396 static const unsigned int DEFAULT_SINGLE_BUFFER_SIZE = 16000;
399 class WriteBandwidthBenchmark : public SingleBufferBandwidthBenchmark {
401 WriteBandwidthBenchmark() : SingleBufferBandwidthBenchmark() { }
402 virtual ~WriteBandwidthBenchmark() { }
405 memset(_buffer, 0, _size);
407 for (size_t i = 0; i < _size; i++) {
408 if (_buffer[i] != 1) {
409 printf("Strings failed to compare after one loop.\n");
414 memset(_buffer, 0, _size);
416 for (size_t i = 0; i < _size; i++) {
417 if (_buffer[i] != 2) {
418 printf("Strings failed to compare after two loops.\n");
427 class WriteStrdBenchmark : public WriteBandwidthBenchmark {
429 WriteStrdBenchmark() : WriteBandwidthBenchmark() { }
430 virtual ~WriteStrdBenchmark() {}
432 const char *getName() { return "strd"; }
435 // Write a given value using strd.
436 void bench(size_t num_loops) {
438 "stmfd sp!, {r0,r1,r2,r3,r4,r5}\n"
448 "mov r3, r1, lsr #5\n"
450 "add r4, r4, #0x01010101\n"
455 "strd r4, r5, [r0]\n"
456 "strd r4, r5, [r0, #8]\n"
457 "strd r4, r5, [r0, #16]\n"
458 "strd r4, r5, [r0, #24]\n"
466 "ldmfd sp!, {r0,r1,r2,r3,r4,r5}\n"
467 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
471 class WriteStmiaBenchmark : public WriteBandwidthBenchmark {
473 WriteStmiaBenchmark() : WriteBandwidthBenchmark() { }
474 virtual ~WriteStmiaBenchmark() {}
476 const char *getName() { return "stmia"; }
479 // Write a given value using stmia.
480 void bench(size_t num_loops) {
482 "stmfd sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11}\n"
491 "mov r3, r1, lsr #5\n"
493 "add r4, r4, #0x01010101\n"
504 "stmia r0!, {r4, r5, r6, r7, r8, r9, r10, r11}\n"
511 "ldmfd sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11}\n"
512 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
516 class WriteVstBenchmark : public WriteBandwidthBenchmark {
518 WriteVstBenchmark() : WriteBandwidthBenchmark() { }
519 virtual ~WriteVstBenchmark() {}
521 const char *getName() { return "vst"; }
523 bool usesNeon() { return true; }
526 // Write a given value using vst.
527 void bench(size_t num_loops) {
528 #if defined(__ARM_NEON__)
530 "stmfd sp!, {r0,r1,r2,r3,r4}\n"
538 "mov r3, r1, lsr #5\n"
548 "vst1.8 {d0-d3}, [r0:128]!\n"
555 "ldmfd sp!, {r0,r1,r2,r3,r4}\n"
556 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
561 class WriteVstmiaBenchmark : public WriteBandwidthBenchmark {
563 WriteVstmiaBenchmark() : WriteBandwidthBenchmark() { }
564 virtual ~WriteVstmiaBenchmark() {}
566 const char *getName() { return "vstmia"; }
568 bool usesNeon() { return true; }
571 // Write a given value using vstmia.
572 void bench(size_t num_loops) {
573 #if defined(__ARM_NEON__)
575 "stmfd sp!, {r0,r1,r2,r3,r4}\n"
583 "mov r3, r1, lsr #5\n"
593 "vstmia r0!, {d0-d3}\n"
600 "ldmfd sp!, {r0,r1,r2,r3,r4}\n"
601 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
606 class MemsetBenchmark : public WriteBandwidthBenchmark {
608 MemsetBenchmark() : WriteBandwidthBenchmark() { }
609 virtual ~MemsetBenchmark() {}
611 const char *getName() { return "memset"; }
614 void bench(size_t num_loops) {
615 for (size_t i = 0; i < num_loops; i++) {
616 memset(_buffer, (i % 255) + 1, _size);
621 class ReadLdrdBenchmark : public SingleBufferBandwidthBenchmark {
623 ReadLdrdBenchmark() : SingleBufferBandwidthBenchmark() { }
624 virtual ~ReadLdrdBenchmark() {}
626 const char *getName() { return "ldrd"; }
629 // Write a given value using strd.
630 void bench(size_t num_loops) {
632 "stmfd sp!, {r0,r1,r2,r3,r4,r5}\n"
639 "mov r3, r1, lsr #5\n"
643 "ldrd r4, r5, [r0]\n"
644 "ldrd r4, r5, [r0, #8]\n"
645 "ldrd r4, r5, [r0, #16]\n"
646 "ldrd r4, r5, [r0, #24]\n"
654 "ldmfd sp!, {r0,r1,r2,r3,r4,r5}\n"
655 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
659 class ReadLdmiaBenchmark : public SingleBufferBandwidthBenchmark {
661 ReadLdmiaBenchmark() : SingleBufferBandwidthBenchmark() { }
662 virtual ~ReadLdmiaBenchmark() {}
664 const char *getName() { return "ldmia"; }
667 // Write a given value using stmia.
668 void bench(size_t num_loops) {
670 "stmfd sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11}\n"
677 "mov r3, r1, lsr #5\n"
681 "ldmia r0!, {r4, r5, r6, r7, r8, r9, r10, r11}\n"
688 "ldmfd sp!, {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11}\n"
689 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
693 class ReadVldBenchmark : public SingleBufferBandwidthBenchmark {
695 ReadVldBenchmark() : SingleBufferBandwidthBenchmark() { }
696 virtual ~ReadVldBenchmark() {}
698 const char *getName() { return "vld"; }
700 bool usesNeon() { return true; }
703 // Write a given value using vst.
704 void bench(size_t num_loops) {
705 #if defined(__ARM_NEON__)
707 "stmfd sp!, {r0,r1,r2,r3}\n"
714 "mov r3, r1, lsr #5\n"
718 "vld1.8 {d0-d3}, [r0:128]!\n"
725 "ldmfd sp!, {r0,r1,r2,r3}\n"
726 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
731 class ReadVldmiaBenchmark : public SingleBufferBandwidthBenchmark {
733 ReadVldmiaBenchmark() : SingleBufferBandwidthBenchmark() { }
734 virtual ~ReadVldmiaBenchmark() {}
736 const char *getName() { return "vldmia"; }
738 bool usesNeon() { return true; }
741 // Write a given value using vstmia.
742 void bench(size_t num_loops) {
743 #if defined(__ARM_NEON__)
745 "stmfd sp!, {r0,r1,r2,r3}\n"
752 "mov r3, r1, lsr #5\n"
756 "vldmia r0!, {d0-d3}\n"
763 "ldmfd sp!, {r0,r1,r2,r3}\n"
764 :: "r" (_buffer), "r" (_size), "r" (num_loops) : "r0", "r1", "r2");
769 #endif // __BANDWIDTH_H__