00001
00012 #include "opd_stats.h"
00013 #include "opd_extended.h"
00014 #include "oprofiled.h"
00015
00016 #include "op_get_time.h"
00017
00018 #include <dirent.h>
00019 #include <stdlib.h>
00020 #include <stdio.h>
00021
00022 unsigned long opd_stats[OPD_MAX_STATS];
00023
00028 static void print_if(char const * fmt, char const * path, char const * filename, int force)
00029 {
00030 int value = opd_read_fs_int(path, filename, 0);
00031 if (value != -1 || force)
00032 printf(fmt, value);
00033 }
00034
00038 void opd_print_stats(void)
00039 {
00040 DIR * dir;
00041 struct dirent * dirent;
00042
00043 printf("\n%s\n", op_get_time());
00044 printf("\n-- OProfile Statistics --\n");
00045 printf("Nr. sample dumps: %lu\n", opd_stats[OPD_DUMP_COUNT]);
00046 printf("Nr. non-backtrace samples: %lu\n", opd_stats[OPD_SAMPLES]);
00047 printf("Nr. kernel samples: %lu\n", opd_stats[OPD_KERNEL]);
00048 printf("Nr. lost samples (no kernel/user): %lu\n", opd_stats[OPD_NO_CTX]);
00049 printf("Nr. lost kernel samples: %lu\n", opd_stats[OPD_LOST_KERNEL]);
00050 printf("Nr. incomplete code structs: %lu\n", opd_stats[OPD_DANGLING_CODE]);
00051 printf("Nr. samples lost due to sample file open failure: %lu\n",
00052 opd_stats[OPD_LOST_SAMPLEFILE]);
00053 printf("Nr. samples lost due to no permanent mapping: %lu\n",
00054 opd_stats[OPD_LOST_NO_MAPPING]);
00055 printf("Nr. user context kernel samples lost due to no app info available: %lu\n",
00056 opd_stats[OPD_NO_APP_KERNEL_SAMPLE]);
00057 print_if("Nr. samples lost due to buffer overflow: %u\n",
00058 "/dev/oprofile/stats", "event_lost_overflow", 1);
00059 print_if("Nr. samples lost due to no mapping: %u\n",
00060 "/dev/oprofile/stats", "sample_lost_no_mapping", 1);
00061 print_if("Nr. backtraces skipped due to no file mapping: %u\n",
00062 "/dev/oprofile/stats", "bt_lost_no_mapping", 0);
00063 print_if("Nr. samples lost due to no mm: %u\n",
00064 "/dev/oprofile/stats", "sample_lost_no_mm", 1);
00065
00066 opd_ext_print_stats();
00067
00068 if (!(dir = opendir("/dev/oprofile/stats/")))
00069 goto out;
00070 while ((dirent = readdir(dir))) {
00071 int cpu_nr;
00072 char path[256];
00073 if (sscanf(dirent->d_name, "cpu%d", &cpu_nr) != 1)
00074 continue;
00075 snprintf(path, 256, "/dev/oprofile/stats/%s", dirent->d_name);
00076
00077 printf("\n---- Statistics for cpu : %d\n", cpu_nr);
00078 print_if("Nr. samples lost cpu buffer overflow: %u\n",
00079 path, "sample_lost_overflow", 1);
00080 print_if("Nr. samples lost task exit: %u\n",
00081 path, "sample_lost_task_exit", 0);
00082 print_if("Nr. samples received: %u\n",
00083 path, "sample_received", 1);
00084 print_if("Nr. backtrace aborted: %u\n",
00085 path, "backtrace_aborted", 0);
00086 print_if("Nr. samples lost invalid pc: %u\n",
00087 path, "sample_invalid_eip", 0);
00088 }
00089 closedir(dir);
00090 out:
00091 fflush(stdout);
00092 }
