[12] | 1 | /* |
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| 2 | * Revision Control Information |
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| 3 | * |
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| 4 | * $Id: cpu_stats.c,v 1.2 2009-04-13 17:03:40 hhkim Exp $ |
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| 5 | * |
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| 6 | */ |
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| 7 | /* LINTLIBRARY */ |
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| 8 | |
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| 9 | #include <stdio.h> |
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| 10 | #include "util.h" |
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| 11 | |
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| 12 | |
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| 13 | #include <sys/types.h> |
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| 14 | #include <sys/time.h> |
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| 15 | #ifdef HAVE_SYS_RESOURCE_H |
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| 16 | # include <sys/resource.h> |
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| 17 | #endif |
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| 18 | |
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| 19 | #if defined(_IBMR2) |
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| 20 | #define etext _etext |
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| 21 | #define edata _edata |
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| 22 | #define end _end |
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| 23 | #endif |
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| 24 | |
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| 25 | #ifndef __CYGWIN32__ |
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| 26 | /*extern int end, etext, edata;*/ |
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| 27 | int end, etext, edata; |
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| 28 | #endif |
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| 29 | |
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| 30 | void |
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| 31 | util_print_cpu_stats(FILE *fp) |
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| 32 | { |
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| 33 | /*#if HAVE_SYS_RESOURCE_H && !defined(__CYGWIN32__)*/ |
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| 34 | #ifdef HAVE_SYS_RESOURCE_H |
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| 35 | #ifndef __CYGWIN32__ |
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| 36 | struct rusage rusage; |
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| 37 | #ifdef RLIMIT_DATA |
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| 38 | struct rlimit rlp; |
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| 39 | long vm_limit, vm_soft_limit; |
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| 40 | #endif |
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| 41 | long text, data; |
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| 42 | double user, system, scale; |
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| 43 | char hostname[257]; |
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| 44 | long vm_text, vm_init_data, vm_uninit_data, vm_sbrk_data; |
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| 45 | |
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| 46 | /* Get the hostname */ |
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| 47 | (void) gethostname(hostname, 256); |
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| 48 | hostname[256] = '\0'; /* just in case */ |
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| 49 | |
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| 50 | /* Get the virtual memory sizes */ |
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| 51 | vm_text = (long) (((long) (&etext)) / 1024.0 + 0.5); |
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| 52 | vm_init_data = (long) (((&edata) - (&etext)) / 1024.0 + 0.5); |
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| 53 | vm_uninit_data = (long) (((&end) - (&edata)) / 1024.0 + 0.5); |
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| 54 | vm_sbrk_data = (long) ((sizeof(char) * ((char *) sbrk(0) - (char *) (&end))) / 1024.0 + 0.5); |
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| 55 | |
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| 56 | /* Get virtual memory limits */ |
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| 57 | #ifdef RLIMIT_DATA /* In HP-UX, with cc, this constant does not exist */ |
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| 58 | (void) getrlimit(RLIMIT_DATA, &rlp); |
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| 59 | vm_limit = (long) (rlp.rlim_max / 1024.0 + 0.5); |
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| 60 | vm_soft_limit = (long) (rlp.rlim_cur / 1024.0 + 0.5); |
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| 61 | #endif |
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| 62 | |
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| 63 | /* Get usage stats */ |
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| 64 | (void) getrusage(RUSAGE_SELF, &rusage); |
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| 65 | user = rusage.ru_utime.tv_sec + rusage.ru_utime.tv_usec/1.0e6; |
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| 66 | system = rusage.ru_stime.tv_sec + rusage.ru_stime.tv_usec/1.0e6; |
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| 67 | scale = (user + system)*100.0; |
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| 68 | if (scale == 0.0) scale = 0.001; |
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| 69 | |
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| 70 | (void) fprintf(fp, "Runtime Statistics\n"); |
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| 71 | (void) fprintf(fp, "------------------\n"); |
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| 72 | (void) fprintf(fp, "Machine name: %s\n", hostname); |
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| 73 | (void) fprintf(fp, "User time %6.1f seconds\n", user); |
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| 74 | (void) fprintf(fp, "System time %6.1f seconds\n\n", system); |
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| 75 | |
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| 76 | text = (long) (rusage.ru_ixrss / scale + 0.5); |
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| 77 | data = (long) ((rusage.ru_idrss + rusage.ru_isrss) / scale + 0.5); |
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| 78 | (void) fprintf(fp, "Average resident text size = %5ldK\n", text); |
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| 79 | (void) fprintf(fp, "Average resident data+stack size = %5ldK\n", data); |
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| 80 | (void) fprintf(fp, "Maximum resident size = %5ldK\n\n", |
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| 81 | rusage.ru_maxrss/2); |
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| 82 | (void) fprintf(fp, "Virtual text size = %5ldK\n", |
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| 83 | vm_text); |
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| 84 | (void) fprintf(fp, "Virtual data size = %5ldK\n", |
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| 85 | vm_init_data + vm_uninit_data + vm_sbrk_data); |
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| 86 | (void) fprintf(fp, " data size initialized = %5ldK\n", |
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| 87 | vm_init_data); |
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| 88 | (void) fprintf(fp, " data size uninitialized = %5ldK\n", |
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| 89 | vm_uninit_data); |
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| 90 | (void) fprintf(fp, " data size sbrk = %5ldK\n", |
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| 91 | vm_sbrk_data); |
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| 92 | /* In some platforms, this constant does not exist */ |
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| 93 | #ifdef RLIMIT_DATA |
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| 94 | (void) fprintf(fp, "Virtual memory limit = %5ldK (%ldK)\n\n", |
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| 95 | vm_soft_limit, vm_limit); |
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| 96 | #endif |
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| 97 | (void) fprintf(fp, "Major page faults = %ld\n", rusage.ru_majflt); |
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| 98 | (void) fprintf(fp, "Minor page faults = %ld\n", rusage.ru_minflt); |
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| 99 | (void) fprintf(fp, "Swaps = %ld\n", rusage.ru_nswap); |
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| 100 | (void) fprintf(fp, "Input blocks = %ld\n", rusage.ru_inblock); |
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| 101 | (void) fprintf(fp, "Output blocks = %ld\n", rusage.ru_oublock); |
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| 102 | (void) fprintf(fp, "Context switch (voluntary) = %ld\n", rusage.ru_nvcsw); |
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| 103 | (void) fprintf(fp, "Context switch (involuntary) = %ld\n", rusage.ru_nivcsw); |
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| 104 | #endif |
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| 105 | #else /* Do not have sys/resource.h */ |
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| 106 | (void) fprintf(fp, "Usage statistics not available\n"); |
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| 107 | #endif |
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| 108 | } |
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| 109 | |
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