Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 1 | /* |
| 2 | * getrusage03 - test ru_maxrss behaviors in struct rusage |
| 3 | * |
| 4 | * This test program is backported from upstream commit: |
| 5 | * 1f10206cf8e945220f7220a809d8bfc15c21f9a5, which fills ru_maxrss |
| 6 | * value in struct rusage according to rss hiwater mark. To make sure |
| 7 | * this feature works correctly, a series of tests are executed in |
| 8 | * this program. |
| 9 | * |
| 10 | * Copyright (C) 2011 Red Hat, Inc. |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of version 2 of the GNU General Public |
| 13 | * License as published by the Free Software Foundation. |
| 14 | * |
| 15 | * This program is distributed in the hope that it would be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 18 | * |
| 19 | * Further, this software is distributed without any warranty that it |
| 20 | * is free of the rightful claim of any third person regarding |
| 21 | * infringement or the like. Any license provided herein, whether |
| 22 | * implied or otherwise, applies only to this software file. Patent |
| 23 | * licenses, if any, provided herein do not apply to combinations of |
| 24 | * this program with other software, or any other product whatsoever. |
| 25 | * |
| 26 | * You should have received a copy of the GNU General Public License |
| 27 | * along with this program; if not, write the Free Software |
| 28 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 29 | * 02110-1301, USA. |
| 30 | */ |
| 31 | #include <sys/types.h> |
| 32 | #include <sys/mman.h> |
| 33 | #include <sys/resource.h> |
| 34 | #include <sys/time.h> |
| 35 | #include <sys/wait.h> |
| 36 | #include <unistd.h> |
| 37 | #include <signal.h> |
| 38 | #include <stdio.h> |
| 39 | #include <stdlib.h> |
| 40 | #include <string.h> |
| 41 | |
| 42 | #include "test.h" |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 43 | #include "safe_macros.h" |
| 44 | |
| 45 | char *TCID = "getrusage03"; |
| 46 | int TST_TOTAL = 1; |
| 47 | |
| 48 | #define DELTA_MAX 10240 |
| 49 | |
| 50 | static struct rusage ru; |
| 51 | static long maxrss_init; |
| 52 | static int retval, status; |
| 53 | static pid_t pid; |
| 54 | |
| 55 | static void inherit_fork(void); |
| 56 | static void inherit_fork2(void); |
| 57 | static void fork_malloc(void); |
| 58 | static void grandchild_maxrss(void); |
| 59 | static void zombie(void); |
| 60 | static void sig_ign(void); |
| 61 | static void exec_without_fork(void); |
| 62 | static void check_return(int status, char *pass_msg, char *fail_msg); |
| 63 | static int is_in_delta(long value); |
| 64 | static void consume(int mega); |
| 65 | static void setup(void); |
| 66 | static void cleanup(void); |
| 67 | |
| 68 | int main(int argc, char *argv[]) |
| 69 | { |
| 70 | int lc; |
Cyril Hrubis | 0b9589f | 2014-05-27 17:40:33 +0200 | [diff] [blame] | 71 | const char *msg; |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 72 | |
| 73 | msg = parse_opts(argc, argv, NULL, NULL); |
| 74 | if (msg != NULL) |
| 75 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| 76 | |
| 77 | setup(); |
| 78 | |
| 79 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
Caspar Zhang | d59a659 | 2013-03-07 14:59:12 +0800 | [diff] [blame] | 80 | tst_count = 0; |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 81 | |
| 82 | tst_resm(TINFO, "allocate 100MB"); |
| 83 | consume(100); |
| 84 | |
| 85 | inherit_fork(); |
| 86 | inherit_fork2(); |
| 87 | fork_malloc(); |
| 88 | grandchild_maxrss(); |
| 89 | zombie(); |
| 90 | sig_ign(); |
| 91 | exec_without_fork(); |
| 92 | } |
| 93 | cleanup(); |
| 94 | tst_exit(); |
| 95 | } |
| 96 | |
| 97 | /* Testcase #01: fork inherit |
| 98 | * expect: initial.self ~= child.self */ |
| 99 | static void inherit_fork(void) |
| 100 | { |
| 101 | tst_resm(TINFO, "Testcase #01: fork inherit"); |
| 102 | |
| 103 | SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru); |
| 104 | tst_resm(TINFO, "initial.self = %ld", ru.ru_maxrss); |
| 105 | |
| 106 | switch (pid = fork()) { |
| 107 | case -1: |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 108 | tst_brkm(TBROK | TERRNO, cleanup, "fork #1"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 109 | case 0: |
| 110 | maxrss_init = ru.ru_maxrss; |
| 111 | SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru); |
| 112 | tst_resm(TINFO, "child.self = %ld", ru.ru_maxrss); |
| 113 | exit(is_in_delta(maxrss_init - ru.ru_maxrss)); |
| 114 | default: |
| 115 | break; |
| 116 | } |
| 117 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 118 | if (waitpid(pid, &status, WUNTRACED | WCONTINUED) == -1) |
| 119 | tst_brkm(TBROK | TERRNO, cleanup, "waitpid"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 120 | check_return(WEXITSTATUS(status), "initial.self ~= child.self", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 121 | "initial.self !~= child.self"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | /* Testcase #02: fork inherit (cont.) |
| 125 | * expect: initial.children ~= 100MB, child.children = 0 */ |
| 126 | static void inherit_fork2(void) |
| 127 | { |
| 128 | tst_resm(TINFO, "Testcase #02: fork inherit(cont.)"); |
| 129 | |
| 130 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 131 | tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss); |
| 132 | if (is_in_delta(ru.ru_maxrss - 102400)) |
| 133 | tst_resm(TPASS, "initial.children ~= 100MB"); |
| 134 | else |
| 135 | tst_resm(TFAIL, "initial.children !~= 100MB"); |
| 136 | |
| 137 | switch (pid = fork()) { |
| 138 | case -1: |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 139 | tst_brkm(TBROK | TERRNO, cleanup, "fork #2"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 140 | case 0: |
| 141 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 142 | tst_resm(TINFO, "child.children = %ld", ru.ru_maxrss); |
| 143 | exit(ru.ru_maxrss == 0); |
| 144 | default: |
| 145 | break; |
| 146 | } |
| 147 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 148 | if (waitpid(pid, &status, WUNTRACED | WCONTINUED) == -1) |
| 149 | tst_brkm(TBROK | TERRNO, cleanup, "waitpid"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 150 | check_return(WEXITSTATUS(status), "child.children == 0", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 151 | "child.children != 0"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | /* Testcase #03: fork + malloc |
| 155 | * expect: initial.self + 50MB ~= child.self */ |
| 156 | static void fork_malloc(void) |
| 157 | { |
| 158 | tst_resm(TINFO, "Testcase #03: fork + malloc"); |
| 159 | |
| 160 | SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru); |
| 161 | tst_resm(TINFO, "initial.self = %ld", ru.ru_maxrss); |
| 162 | |
| 163 | switch (pid = fork()) { |
| 164 | case -1: |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 165 | tst_brkm(TBROK | TERRNO, cleanup, "fork #3"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 166 | case 0: |
| 167 | maxrss_init = ru.ru_maxrss; |
| 168 | tst_resm(TINFO, "child allocate +50MB"); |
| 169 | consume(50); |
| 170 | SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru); |
| 171 | tst_resm(TINFO, "child.self = %ld", ru.ru_maxrss); |
| 172 | exit(is_in_delta(maxrss_init + 51200 - ru.ru_maxrss)); |
| 173 | default: |
| 174 | break; |
| 175 | } |
| 176 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 177 | if (waitpid(pid, &status, WUNTRACED | WCONTINUED) == -1) |
| 178 | tst_brkm(TBROK | TERRNO, cleanup, "waitpid"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 179 | check_return(WEXITSTATUS(status), "initial.self + 50MB ~= child.self", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 180 | "initial.self + 50MB !~= child.self"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 181 | } |
| 182 | |
| 183 | /* Testcase #04: grandchild maxrss |
| 184 | * expect: post_wait.children ~= 300MB */ |
| 185 | static void grandchild_maxrss(void) |
| 186 | { |
| 187 | tst_resm(TINFO, "Testcase #04: grandchild maxrss"); |
| 188 | |
| 189 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 190 | tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss); |
| 191 | |
| 192 | switch (pid = fork()) { |
| 193 | case -1: |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 194 | tst_brkm(TBROK | TERRNO, cleanup, "fork #4"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 195 | case 0: |
| 196 | retval = system("getrusage03_child -g 300"); |
| 197 | if ((WIFEXITED(retval) && WEXITSTATUS(retval) != 0)) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 198 | tst_brkm(TBROK | TERRNO, cleanup, "system"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 199 | exit(0); |
| 200 | default: |
| 201 | break; |
| 202 | } |
| 203 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 204 | if (waitpid(pid, &status, WUNTRACED | WCONTINUED) == -1) |
| 205 | tst_brkm(TBROK | TERRNO, cleanup, "waitpid"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 206 | if (WEXITSTATUS(status) != 0) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 207 | tst_brkm(TBROK | TERRNO, cleanup, "child exit status is not 0"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 208 | |
| 209 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 210 | tst_resm(TINFO, "post_wait.children = %ld", ru.ru_maxrss); |
| 211 | if (is_in_delta(ru.ru_maxrss - 307200)) |
| 212 | tst_resm(TPASS, "child.children ~= 300MB"); |
| 213 | else |
| 214 | tst_resm(TFAIL, "child.children !~= 300MB"); |
| 215 | } |
| 216 | |
| 217 | /* Testcase #05: zombie |
| 218 | * expect: initial ~= pre_wait, post_wait ~= 400MB */ |
| 219 | static void zombie(void) |
| 220 | { |
| 221 | tst_resm(TINFO, "Testcase #05: zombie"); |
| 222 | |
| 223 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 224 | tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss); |
| 225 | maxrss_init = ru.ru_maxrss; |
| 226 | |
| 227 | switch (pid = fork()) { |
| 228 | case -1: |
| 229 | tst_brkm(TBROK, cleanup, "fork #5"); |
| 230 | case 0: |
| 231 | retval = system("getrusage03_child -n 400"); |
| 232 | if ((WIFEXITED(retval) && WEXITSTATUS(retval) != 0)) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 233 | tst_brkm(TBROK | TERRNO, cleanup, "system"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 234 | exit(0); |
| 235 | default: |
| 236 | break; |
| 237 | } |
| 238 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 239 | sleep(1); /* children become zombie */ |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 240 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 241 | tst_resm(TINFO, "pre_wait.children = %ld", ru.ru_maxrss); |
| 242 | if (is_in_delta(ru.ru_maxrss - maxrss_init)) |
| 243 | tst_resm(TPASS, "initial.children ~= pre_wait.children"); |
| 244 | else |
| 245 | tst_resm(TFAIL, "initial.children !~= pre_wait.children"); |
| 246 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 247 | if (waitpid(pid, &status, WUNTRACED | WCONTINUED) == -1) |
| 248 | tst_brkm(TBROK | TERRNO, cleanup, "waitpid"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 249 | if (WEXITSTATUS(status) != 0) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 250 | tst_brkm(TBROK | TERRNO, cleanup, "child exit status is not 0"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 251 | |
| 252 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 253 | tst_resm(TINFO, "post_wait.children = %ld", ru.ru_maxrss); |
| 254 | if (is_in_delta(ru.ru_maxrss - 409600)) |
| 255 | tst_resm(TPASS, "post_wait.children ~= 400MB"); |
| 256 | else |
| 257 | tst_resm(TFAIL, "post_wait.children !~= 400MB"); |
| 258 | } |
| 259 | |
| 260 | /* Testcase #06: SIG_IGN |
| 261 | * expect: initial ~= after_zombie */ |
| 262 | static void sig_ign(void) |
| 263 | { |
| 264 | tst_resm(TINFO, "Testcase #06: SIG_IGN"); |
| 265 | |
| 266 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 267 | tst_resm(TINFO, "initial.children = %ld", ru.ru_maxrss); |
| 268 | signal(SIGCHLD, SIG_IGN); |
| 269 | maxrss_init = ru.ru_maxrss; |
| 270 | |
| 271 | switch (pid = fork()) { |
| 272 | case -1: |
| 273 | tst_brkm(TBROK, cleanup, "fork #6"); |
| 274 | case 0: |
| 275 | retval = system("getrusage03_child -n 500"); |
| 276 | if ((WIFEXITED(retval) && WEXITSTATUS(retval) != 0)) |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 277 | tst_brkm(TBROK | TERRNO, cleanup, "system"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 278 | exit(0); |
| 279 | default: |
| 280 | break; |
| 281 | } |
| 282 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 283 | sleep(1); /* children become zombie */ |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 284 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 285 | tst_resm(TINFO, "after_zombie.children = %ld", ru.ru_maxrss); |
| 286 | if (is_in_delta(ru.ru_maxrss - maxrss_init)) |
| 287 | tst_resm(TPASS, "initial.children ~= after_zombie.children"); |
| 288 | else |
| 289 | tst_resm(TFAIL, "initial.children !~= after_zombie.children"); |
| 290 | signal(SIGCHLD, SIG_DFL); |
| 291 | } |
| 292 | |
| 293 | /* Testcase #07: exec without fork |
| 294 | * expect: initial ~= fork */ |
| 295 | static void exec_without_fork(void) |
| 296 | { |
| 297 | char str_maxrss_self[BUFSIZ], str_maxrss_child[BUFSIZ]; |
| 298 | long maxrss_self, maxrss_child; |
| 299 | |
| 300 | tst_resm(TINFO, "Testcase #07: exec without fork"); |
| 301 | |
| 302 | SAFE_GETRUSAGE(cleanup, RUSAGE_SELF, &ru); |
| 303 | maxrss_self = ru.ru_maxrss; |
| 304 | SAFE_GETRUSAGE(cleanup, RUSAGE_CHILDREN, &ru); |
| 305 | maxrss_child = ru.ru_maxrss; |
| 306 | tst_resm(TINFO, "initial.self = %ld, initial.children = %ld", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 307 | maxrss_self, maxrss_child); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 308 | |
| 309 | sprintf(str_maxrss_self, "%ld", maxrss_self); |
| 310 | sprintf(str_maxrss_child, "%ld", maxrss_child); |
| 311 | if (execlp("getrusage03_child", "getrusage03_child", "-v", |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 312 | "-s", str_maxrss_self, "-l", str_maxrss_child, NULL) == -1) |
| 313 | tst_brkm(TBROK | TERRNO, cleanup, "execlp"); |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | static int is_in_delta(long value) |
| 317 | { |
| 318 | return (value >= -DELTA_MAX && value <= DELTA_MAX); |
| 319 | } |
| 320 | |
| 321 | static void check_return(int status, char *pass_msg, char *fail_msg) |
| 322 | { |
| 323 | switch (status) { |
| 324 | case 1: |
| 325 | tst_resm(TPASS, "%s", pass_msg); |
| 326 | break; |
| 327 | case 0: |
| 328 | tst_resm(TFAIL, "%s", fail_msg); |
| 329 | break; |
| 330 | default: |
| 331 | tst_resm(TFAIL, "child exit status is %d", status); |
| 332 | break; |
| 333 | } |
| 334 | } |
| 335 | |
| 336 | static void consume(int mega) |
| 337 | { |
| 338 | size_t sz; |
| 339 | void *ptr; |
| 340 | |
Wanlong Gao | 354ebb4 | 2012-12-07 10:10:04 +0800 | [diff] [blame] | 341 | sz = mega * 1024 * 1024; |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 342 | ptr = SAFE_MALLOC(cleanup, sz); |
| 343 | memset(ptr, 0, sz); |
| 344 | } |
| 345 | |
| 346 | static void setup(void) |
| 347 | { |
Wanlong Gao | bcf24e6 | 2013-06-25 09:33:50 +0800 | [diff] [blame] | 348 | /* Disable test if the version of the kernel is less than 2.6.32 */ |
| 349 | if ((tst_kvercmp(2, 6, 32)) < 0) { |
| 350 | tst_resm(TCONF, "This ru_maxrss field is not supported"); |
Cyril Hrubis | 526fdf8 | 2014-12-04 14:35:01 +0100 | [diff] [blame] | 351 | tst_brkm(TCONF, NULL, "before kernel 2.6.32"); |
Wanlong Gao | bcf24e6 | 2013-06-25 09:33:50 +0800 | [diff] [blame] | 352 | } |
| 353 | |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 354 | tst_sig(FORK, DEF_HANDLER, cleanup); |
| 355 | |
| 356 | TEST_PAUSE; |
| 357 | } |
| 358 | |
| 359 | static void cleanup(void) |
| 360 | { |
Caspar Zhang | 817c782 | 2011-06-30 01:50:33 +0800 | [diff] [blame] | 361 | } |