1 /*
2 Copyright (c) 2003, 2021, Oracle and/or its affiliates.
3 All rights reserved. Use is subject to license terms.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License, version 2.0,
7 as published by the Free Software Foundation.
8
9 This program is also distributed with certain software (including
10 but not limited to OpenSSL) that is licensed under separate terms,
11 as designated in a particular file or component or in included license
12 documentation. The authors of MySQL hereby grant you an additional
13 permission to link the program and your derivative works with the
14 separately licensed software that they have included with MySQL.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License, version 2.0, for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 */
25
26
27
28 #include <ndb_global.h>
29
30 long long getMilli();
31 long long getMicro();
32 void malloctest(int loopcount, int memsize, int touch);
33 void freetest(int loopcount, int memsize);
34 void mmaptest(int loopcount, int memsize, int touch);
35 void unmaptest(int loopcount, int memsize);
36
37
main(int argc,char ** argv)38 main(int argc, char ** argv)
39 {
40
41 int loopcount;
42 int memsize;
43 if(argc < 4) {
44 printf("Usage: memtest X loopcount memsize(MB)\n");
45 printf("where X = \n");
46 printf("1 : malloc test \n");
47 printf("2 : mmap test \n");
48 printf("3 : malloc test + touch pages\n");
49 printf("4 : mmap test + touch pages\n");
50 printf("5 : malloc/free test \n");
51 printf("6 : mmap/munmap test \n");
52 printf("loopcount - number of loops\n");
53 printf("memsize - memory segment size to allocate in MB.\n");
54 exit(1);
55 }
56
57
58 loopcount = atoi(argv[2]);
59 memsize = atoi(argv[3]);
60 switch(atoi(argv[1])) {
61 case 1: malloctest(loopcount, memsize , 0 );
62 break;
63 case 2: mmaptest(loopcount, memsize,0);
64 break;
65 case 3: malloctest(loopcount, memsize,1);
66 break;
67 case 4: mmaptest(loopcount, memsize,1);
68 break;
69 case 5: freetest(loopcount, memsize);
70 break;
71 case 6: unmaptest(loopcount, memsize);
72 break;
73 default:
74 break;
75 }
76 }
77
getMilli()78 long long getMilli() {
79 struct timeval tick_time;
80 gettimeofday(&tick_time, 0);
81
82 return
83 ((long long)tick_time.tv_sec) * ((long long)1000) +
84 ((long long)tick_time.tv_usec) / ((long long)1000);
85 }
86
getMicro()87 long long getMicro(){
88 struct timeval tick_time;
89 int res = gettimeofday(&tick_time, 0);
90
91 long long secs = tick_time.tv_sec;
92 long long micros = tick_time.tv_usec;
93
94 micros = secs*1000000+micros;
95 return micros;
96 }
97
malloctest(int loopcount,int memsize,int touch)98 void malloctest(int loopcount, int memsize, int touch) {
99 long long start=0;
100 int total=0;
101 int i=0, j=0;
102 int size=memsize*1024*1024; /*bytes*/;
103 float mean;
104 char * ptr =0;
105
106 printf("Staring malloctest ");
107 if(touch)
108 printf("with touch\n");
109 else
110 printf("\n");
111
112 start=getMicro();
113
114 for(i=0; i<loopcount; i++){
115 ptr=(char *)malloc((size_t)(size));
116 if(ptr==0) {
117 printf("failed to malloc!\n");
118 return;
119 }
120 if(touch) {
121 for(j=0; j<size; j=j+4096)
122 ptr[j]=1;
123 }
124 }
125 total=(int)(getMicro()-start);
126
127 mean=(float)((float)total/(float)loopcount);
128 printf("Total time malloc %d bytes: %2.3f microsecs loopcount %d touch %d \n",
129 size, mean,loopcount, touch);
130 }
131
132
mmaptest(int loopcount,int memsize,int touch)133 void mmaptest(int loopcount, int memsize, int touch) {
134 long long start=0;
135 int total=0;
136 int i=0, j=0;
137 char * ptr;
138 int size=memsize*1024*1024; /*bytes*/;
139 float mean;
140
141 printf("Staring mmaptest ");
142 if(touch)
143 printf("with touch \n");
144 else
145 printf("\n");
146
147 start=getMicro();
148 for(i=0; i<loopcount; i++){
149 ptr = mmap(0,
150 size,
151 PROT_READ|PROT_WRITE,
152 MAP_PRIVATE|MAP_ANONYMOUS,
153 0,
154 0);
155 if(ptr<0) {
156 printf("failed to mmap!\n");
157 return;
158 }
159
160 if(touch) {
161 for(j=0; j<size; j=j+4096)
162 ptr[j]=1;
163 }
164 }
165 total=(int)(getMicro()-start);
166 mean=(float)((float)total/(float)loopcount);
167 printf("Total time mmap %d bytes: %2.3f microsecs \n",size, mean);
168 }
169
170
unmaptest(loopcount,memsize)171 void unmaptest(loopcount, memsize)
172 {
173 long long start=0;
174 int total=0;
175 int i=0, j=0;
176 char * ptr;
177 int size=memsize*1024*1024; /*bytes*/;
178 float mean;
179
180 printf("Staring munmap test (loopcount = 1 no matter what you prev. set)\n");
181
182 loopcount = 1;
183
184
185 for(i=0; i<loopcount; i++){
186 ptr =(char*) mmap(0,
187 size,
188 PROT_READ|PROT_WRITE,
189 MAP_PRIVATE|MAP_ANONYMOUS,
190 0,
191 0);
192 if(ptr<0) {
193 printf("failed to mmap!\n");
194 return;
195 }
196
197
198 for(j=0; j<size; j=j+1)
199 ptr[j]='1';
200 start=getMicro();
201 if(munmap(ptr, size)<0) {
202 printf("failed to munmap!\n");
203 return;
204 }
205
206 total=(int)(getMicro()-start);
207 /*
208 for(j=8192; j<size; j=j+4096) {
209
210 *(ptr+j)='1';
211 }
212
213 for(j=0; j<4096; j=j+4096) {
214 *(ptr+j)='1';
215 }
216
217 */
218 }
219 mean=(float)((float)total/(float)loopcount);
220 printf("Total time unmap %d bytes: %2.3f microsecs \n",size, mean);
221 }
222
freetest(int loopcount,int memsize)223 void freetest(int loopcount, int memsize) {
224 long long start=0;
225 int total=0;
226 int i=0, j=0;
227 int size=memsize*1024*1024; /*bytes*/;
228 float mean;
229 char * ptr =0;
230
231 loopcount = 1;
232 printf("Staring free test (loopcount = 1 no matter what you prev. set)\n");
233
234
235 for(i=0; i<loopcount; i++){
236 ptr=(char*)malloc((size_t)(size));
237 if(ptr==0) {
238 printf("failed to malloc!\n");
239 return;
240 }
241 for(j=0; j<size; j=j+4096)
242 ptr[j]='1';
243 start=getMicro();
244 free(ptr);
245 total=(int)(getMicro()-start);
246 }
247
248
249 mean=(float)((float)total/(float)loopcount);
250 printf("Total time free %d bytes: %2.3f microsecs loopcount %d \n",
251 size, mean,loopcount);
252 }
253