93 lines
2.4 KiB
C
93 lines
2.4 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_002"
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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 *buf1 = NULL, *buf2 = NULL;
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struct rusage cur_rusage;
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long cur_maxrss, prev_maxrss = 0, delta_maxrss;
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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_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_SELF ]\n");
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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_maxrss = cur_maxrss;
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/* mmap 12MB */
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printf("---- mmap and access 12MB (%d KB) ----\n", 12 * 1024);
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buf1 = mmap(0, 12 * M_BYTE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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CHKANDJUMP(!buf1, "mmap 1st");
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memset(buf1, 0xff, 12 * M_BYTE);
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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_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_SELF ]\n");
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OKNG(cur_maxrss < (12 * 1024),
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_maxrss = cur_maxrss;
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/* munmap 12MB */
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printf("---- munmap 12MB (%d KB) ----\n", 12 * 1024);
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munmap(buf1, 12 * M_BYTE);
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/* check rusage 3rd */
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rc = getrusage(RUSAGE_SELF, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage 3rd");
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_SELF ]\n");
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OKNG(cur_maxrss != prev_maxrss,
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_maxrss = cur_maxrss;
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/* mmap 16MB */
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printf("---- mmap and access 16MB (%d KB) ----\n", 16 * 1024);
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buf2 = mmap(0, 16 * M_BYTE, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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CHKANDJUMP(!buf2, "mmap 2nd");
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memset(buf2, 0xff, 16 * M_BYTE);
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/* check rusage 4th */
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rc = getrusage(RUSAGE_SELF, &cur_rusage);
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CHKANDJUMP(rc == -1, "getrusage 4th");
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cur_maxrss = get_rusage_maxrss(&cur_rusage);
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delta_maxrss = cur_maxrss - prev_maxrss;
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printf("[ RUSAGE_SELF ]\n");
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OKNG(delta_maxrss < (3.8 * 1024) || delta_maxrss > (4.2 * 1024),
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" maxrss: %d KB (+ %d KB)", cur_maxrss, delta_maxrss);
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prev_maxrss = cur_maxrss;
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munmap(buf2, 16 * M_BYTE);
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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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