ec844bb6e3
The following test set: fix: Bug for getrusage return incorrect ru_maxrss fix: Bug for getrusage(RUSAGE_CHILDREN) return parent info (POSTK_DEBUG_TEMP_FIX_72) fix: Bug for getrusage often return incorrect ru_stime Change-Id: I6734b1e34565d5d2715f9901a04ba5b6f0278032 Refs: #1032 Refs: #1033 Refs: #1034
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include "./test_chk.h"
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#include "./test_rusage.h"
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#define TEST_NAME "CT_005"
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int main(int argc, char* argv[])
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{
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int rc;
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char *buf = NULL;
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struct rusage cur_rusage;
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long cur_utime, cur_stime, cur_maxrss;
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long delta_utime, delta_stime, delta_maxrss;
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long prev_utime = 0, prev_stime = 0, prev_maxrss = 0;
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int pid, status;
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printf("---- just started ----\n");
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/* check rusage 1st */
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rc = getrusage(RUSAGE_SELF, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage 1st");
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cur_utime = get_rusage_utime(&cur_rusage);
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cur_stime = get_rusage_stime(&cur_rusage);
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_utime = cur_utime - prev_utime;
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delta_stime = cur_stime - prev_stime;
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_SELF ]\n");
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OKNG(cur_utime < 0 || cur_utime > (0.1 * ONE_SEC),
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" utime: %d.%06d s (+ %d.%06d s)",
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(cur_utime / ONE_SEC), (cur_utime % ONE_SEC),
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(delta_utime / ONE_SEC), (delta_utime % ONE_SEC));
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OKNG(cur_stime < 0 || cur_stime > (0.1 * ONE_SEC),
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" stime: %d.%06d s (+ %d.%06d s)",
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(cur_stime / ONE_SEC), (cur_stime % ONE_SEC),
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(delta_stime / ONE_SEC), (delta_stime % ONE_SEC));
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OKNG(cur_maxrss < 0 ,
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_utime = cur_utime;
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prev_stime = cur_stime;
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prev_maxrss = cur_maxrss;
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printf("---- fork child process ----\n");
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pid = fork();
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CHKANDJUMP(pid == -1, "fork");
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if (pid == 0) { /* child */
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/* add utime 1sec */
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printf(" ---- add utime 1sec in child ----\n");
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add_utime(1);
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/* add stime 1sec */
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printf(" ---- add stime 1sec in child ----\n");
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add_stime(1);
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/* mmap 16MB */
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printf(" ---- mmap and access 16MB (%d KB) in child ----\n", 16 * 1024);
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buf = mmap(0, 16 * M_BYTE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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CHKANDJUMP(!buf, "mmap");
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memset(buf, 0xff, 16 * M_BYTE);
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/* munmap 16MB */
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printf(" ---- munmap 16MB (%d KB) in child ----\n", 16 * 1024);
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munmap(buf, 16 * M_BYTE);
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printf(" ---- child process exit ----\n");
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_exit(123);
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} else { /* parent */
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/* add utime 3sec */
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printf("---- add utime 3sec in parent ----\n");
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add_utime(3);
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printf("---- wait child's exit ----\n");
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rc = waitpid(pid, &status, 0);
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CHKANDJUMP(rc == -1, "waitpid");
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}
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/* check rusage 2nd */
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rc = getrusage(RUSAGE_SELF, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage 2nd");
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cur_utime = get_rusage_utime(&cur_rusage);
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cur_stime = get_rusage_stime(&cur_rusage);
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_utime = cur_utime - prev_utime;
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delta_stime = cur_stime - prev_stime;
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_SELF ]\n");
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OKNG(delta_utime < (2.9 * ONE_SEC) || delta_utime > (3.1 * ONE_SEC),
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" utime: %d.%06d s (+ %d.%06d s)",
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(cur_utime / ONE_SEC), (cur_utime % ONE_SEC),
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(delta_utime / ONE_SEC), (delta_utime % ONE_SEC));
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OKNG(delta_stime < 0 || delta_stime > (0.1 * ONE_SEC),
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" stime: %d.%06d s (+ %d.%06d s)",
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(cur_stime / ONE_SEC), (cur_stime % ONE_SEC),
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(delta_stime / ONE_SEC), (delta_stime % ONE_SEC));
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OKNG(cur_maxrss > 16 * 1024,
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_utime = cur_utime;
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prev_stime = cur_stime;
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prev_maxrss = cur_maxrss;
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printf("*** %s PASS\n\n", TEST_NAME);
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return 0;
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fn_fail:
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printf("*** %s FAILED\n\n", TEST_NAME);
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return -1;
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}
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