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89 lines
3.1 KiB
89 lines
3.1 KiB
/* LINTLIBRARY */
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#include "util.h"
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#ifdef BSD
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#if defined(_IBMR2)
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#define etext _etext
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#define edata _edata
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#define end _end
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#endif
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extern int end, etext, edata;
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#endif
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void
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util_print_cpu_stats(FILE *fp)
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{
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#ifdef BSD
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struct rusage rusage;
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struct rlimit rlp;
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long text, data, vm_limit, vm_soft_limit;
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double user, system, scale;
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char hostname[257];
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long vm_text, vm_init_data, vm_uninit_data, vm_sbrk_data;
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/* Get the hostname */
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(void) gethostname(hostname, 256);
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hostname[256] = '\0'; /* just in case */
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/* Get the virtual memory sizes */
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vm_text = (long) (((long) (&etext)) / 1024.0 + 0.5);
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vm_init_data = (long) (((long) (&edata) - (long) (&etext)) / 1024.0 + 0.5);
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vm_uninit_data = (long) (((long) (&end) - (long) (&edata)) / 1024.0 + 0.5);
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vm_sbrk_data = (long) (((long) sbrk(0) - (long) (&end)) / 1024.0 + 0.5);
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/* Get virtual memory limits */
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(void) getrlimit(RLIMIT_DATA, &rlp);
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vm_limit = (long) (rlp.rlim_max / 1024.0 + 0.5);
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vm_soft_limit = (long) (rlp.rlim_cur / 1024.0 + 0.5);
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/* Get usage stats */
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(void) getrusage(RUSAGE_SELF, &rusage);
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user = rusage.ru_utime.tv_sec + rusage.ru_utime.tv_usec/1.0e6;
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system = rusage.ru_stime.tv_sec + rusage.ru_stime.tv_usec/1.0e6;
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scale = (user + system)*100.0;
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if (scale == 0.0) scale = 0.001;
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(void) fprintf(fp, "Runtime Statistics\n");
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(void) fprintf(fp, "------------------\n");
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(void) fprintf(fp, "Machine name: %s\n", hostname);
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(void) fprintf(fp, "User time %6.1f seconds\n", user);
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(void) fprintf(fp, "System time %6.1f seconds\n\n", system);
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text = (int) (rusage.ru_ixrss / scale + 0.5);
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data = (int) ((rusage.ru_idrss + rusage.ru_isrss) / scale + 0.5);
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(void) fprintf(fp, "Average resident text size = %5ldK\n", text);
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(void) fprintf(fp, "Average resident data+stack size = %5ldK\n", data);
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(void) fprintf(fp, "Maximum resident size = %5ldK\n\n",
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rusage.ru_maxrss/2);
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(void) fprintf(fp, "Virtual text size = %5ldK\n",
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vm_text);
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(void) fprintf(fp, "Virtual data size = %5ldK\n",
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vm_init_data + vm_uninit_data + vm_sbrk_data);
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(void) fprintf(fp, " data size initialized = %5ldK\n",
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vm_init_data);
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(void) fprintf(fp, " data size uninitialized = %5ldK\n",
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vm_uninit_data);
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(void) fprintf(fp, " data size sbrk = %5ldK\n",
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vm_sbrk_data);
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(void) fprintf(fp, "Virtual memory limit = %5ldK (%ldK)\n\n",
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vm_soft_limit, vm_limit);
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(void) fprintf(fp, "Major page faults = %ld\n", rusage.ru_majflt);
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(void) fprintf(fp, "Minor page faults = %ld\n", rusage.ru_minflt);
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(void) fprintf(fp, "Swaps = %ld\n", rusage.ru_nswap);
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(void) fprintf(fp, "Input blocks = %ld\n", rusage.ru_inblock);
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(void) fprintf(fp, "Output blocks = %ld\n", rusage.ru_oublock);
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(void) fprintf(fp, "Context switch (voluntary) = %ld\n", rusage.ru_nvcsw);
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(void) fprintf(fp, "Context switch (involuntary) = %ld\n", rusage.ru_nivcsw);
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#else
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(void) fprintf(fp, "Usage statistics not available\n");
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#endif
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}
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