1 /* 2 * resource_track.c --- resource tracking 3 * 4 * Copyright (C) 2013 by Theodore Ts'o 5 * 6 * %Begin-Header% 7 * This file may be redistributed under the terms of the GNU Public 8 * License. 9 * %End-Header% 10 */ 11 12 13 #include "config.h" 14 #include "resize2fs.h" 15 #include <time.h> 16 #ifdef HAVE_MALLOC_H 17 #include <malloc.h> 18 #endif 19 #include <sys/resource.h> 20 21 void init_resource_track(struct resource_track *track, const char *desc, 22 io_channel channel) 23 { 24 #ifdef HAVE_GETRUSAGE 25 struct rusage r; 26 #endif 27 io_stats io_start = 0; 28 29 track->desc = desc; 30 track->brk_start = sbrk(0); 31 gettimeofday(&track->time_start, 0); 32 #ifdef HAVE_GETRUSAGE 33 #ifdef sun 34 memset(&r, 0, sizeof(struct rusage)); 35 #endif 36 getrusage(RUSAGE_SELF, &r); 37 track->user_start = r.ru_utime; 38 track->system_start = r.ru_stime; 39 #else 40 track->user_start.tv_sec = track->user_start.tv_usec = 0; 41 track->system_start.tv_sec = track->system_start.tv_usec = 0; 42 #endif 43 track->bytes_read = 0; 44 track->bytes_written = 0; 45 if (channel && channel->manager && channel->manager->get_stats) 46 channel->manager->get_stats(channel, &io_start); 47 if (io_start) { 48 track->bytes_read = io_start->bytes_read; 49 track->bytes_written = io_start->bytes_written; 50 } 51 } 52 53 static float timeval_subtract(struct timeval *tv1, 54 struct timeval *tv2) 55 { 56 return ((tv1->tv_sec - tv2->tv_sec) + 57 ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000); 58 } 59 60 void print_resource_track(ext2_resize_t rfs, struct resource_track *track, 61 io_channel channel) 62 { 63 #ifdef HAVE_GETRUSAGE 64 struct rusage r; 65 #endif 66 #ifdef HAVE_MALLINFO 67 struct mallinfo malloc_info; 68 #endif 69 struct timeval time_end; 70 71 if ((rfs->flags & RESIZE_DEBUG_RTRACK) == 0) 72 return; 73 74 gettimeofday(&time_end, 0); 75 76 if (track->desc) 77 printf("%s: ", track->desc); 78 79 #ifdef HAVE_MALLINFO 80 #define kbytes(x) (((unsigned long)(x) + 1023) / 1024) 81 82 malloc_info = mallinfo(); 83 printf("Memory used: %luk/%luk (%luk/%luk), ", 84 kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd), 85 kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks)); 86 #else 87 printf("Memory used: %lu, ", 88 (unsigned long) (((char *) sbrk(0)) - 89 ((char *) track->brk_start))); 90 #endif 91 #ifdef HAVE_GETRUSAGE 92 getrusage(RUSAGE_SELF, &r); 93 94 printf("time: %5.2f/%5.2f/%5.2f\n", 95 timeval_subtract(&time_end, &track->time_start), 96 timeval_subtract(&r.ru_utime, &track->user_start), 97 timeval_subtract(&r.ru_stime, &track->system_start)); 98 #else 99 printf("elapsed time: %6.3f\n", 100 timeval_subtract(&time_end, &track->time_start)); 101 #endif 102 #define mbytes(x) (((x) + 1048575) / 1048576) 103 if (channel && channel->manager && channel->manager->get_stats) { 104 io_stats delta = 0; 105 unsigned long long bytes_read = 0; 106 unsigned long long bytes_written = 0; 107 108 channel->manager->get_stats(channel, &delta); 109 if (delta) { 110 bytes_read = delta->bytes_read - track->bytes_read; 111 bytes_written = delta->bytes_written - 112 track->bytes_written; 113 if (bytes_read == 0 && bytes_written == 0) 114 goto skip_io; 115 if (track->desc) 116 printf("%s: ", track->desc); 117 printf("I/O read: %lluMB, write: %lluMB, " 118 "rate: %.2fMB/s\n", 119 mbytes(bytes_read), 120 mbytes(bytes_written), 121 (double)mbytes(bytes_read + bytes_written) / 122 timeval_subtract(&time_end, &track->time_start)); 123 } 124 } 125 skip_io: 126 fflush(stdout); 127 } 128 129
