diff options
Diffstat (limited to 'resize/resource_track.c')
| -rw-r--r-- | resize/resource_track.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/resize/resource_track.c b/resize/resource_track.c new file mode 100644 index 0000000..f466706 --- /dev/null +++ b/resize/resource_track.c @@ -0,0 +1,135 @@ +/* + * resource_track.c --- resource tracking + * + * Copyright (C) 2013 by Theodore Ts'o + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU Public + * License. + * %End-Header% + */ + + +#include "config.h" +#include "resize2fs.h" +#include <time.h> +#ifdef HAVE_MALLOC_H +#include <malloc.h> +#endif +#include <sys/resource.h> + +void init_resource_track(struct resource_track *track, const char *desc, + io_channel channel) +{ +#ifdef HAVE_GETRUSAGE + struct rusage r; +#endif + io_stats io_start = 0; + + track->desc = desc; + track->brk_start = sbrk(0); + gettimeofday(&track->time_start, 0); +#ifdef HAVE_GETRUSAGE +#ifdef sun + memset(&r, 0, sizeof(struct rusage)); +#endif + getrusage(RUSAGE_SELF, &r); + track->user_start = r.ru_utime; + track->system_start = r.ru_stime; +#else + track->user_start.tv_sec = track->user_start.tv_usec = 0; + track->system_start.tv_sec = track->system_start.tv_usec = 0; +#endif + track->bytes_read = 0; + track->bytes_written = 0; + if (channel && channel->manager && channel->manager->get_stats) + channel->manager->get_stats(channel, &io_start); + if (io_start) { + track->bytes_read = io_start->bytes_read; + track->bytes_written = io_start->bytes_written; + } +} + +static float timeval_subtract(struct timeval *tv1, + struct timeval *tv2) +{ + return ((tv1->tv_sec - tv2->tv_sec) + + ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000); +} + +void print_resource_track(ext2_resize_t rfs, struct resource_track *track, + io_channel channel) +{ +#ifdef HAVE_GETRUSAGE + struct rusage r; +#endif +#ifdef HAVE_MALLINFO2 + struct mallinfo2 malloc_info; +#elif defined HAVE_MALLINFO + struct mallinfo malloc_info; +#endif + struct timeval time_end; + + if ((rfs->flags & RESIZE_DEBUG_RTRACK) == 0) + return; + + gettimeofday(&time_end, 0); + + if (track->desc) + printf("%s: ", track->desc); + +#define kbytes(x) (((unsigned long)(x) + 1023) / 1024) +#ifdef HAVE_MALLINFO2 + malloc_info = mallinfo2(); + printf("Memory used: %luk/%luk (%luk/%luk), ", + kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd), + kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks)); +#elif defined HAVE_MALLINFO + + malloc_info = mallinfo(); + printf("Memory used: %luk/%luk (%luk/%luk), ", + kbytes(malloc_info.arena), kbytes(malloc_info.hblkhd), + kbytes(malloc_info.uordblks), kbytes(malloc_info.fordblks)); +#else + printf("Memory used: %lu, ", + (unsigned long) (((char *) sbrk(0)) - + ((char *) track->brk_start))); +#endif +#ifdef HAVE_GETRUSAGE + getrusage(RUSAGE_SELF, &r); + + printf("time: %5.2f/%5.2f/%5.2f\n", + timeval_subtract(&time_end, &track->time_start), + timeval_subtract(&r.ru_utime, &track->user_start), + timeval_subtract(&r.ru_stime, &track->system_start)); +#else + printf("elapsed time: %6.3f\n", + timeval_subtract(&time_end, &track->time_start)); +#endif +#define mbytes(x) (((x) + 1048575) / 1048576) + if (channel && channel->manager && channel->manager->get_stats) { + io_stats delta = 0; + unsigned long long bytes_read = 0; + unsigned long long bytes_written = 0; + + channel->manager->get_stats(channel, &delta); + if (delta) { + bytes_read = delta->bytes_read - track->bytes_read; + bytes_written = delta->bytes_written - + track->bytes_written; + if (bytes_read == 0 && bytes_written == 0) + goto skip_io; + if (track->desc) + printf("%s: ", track->desc); + printf("I/O read: %lluMB, write: %lluMB, " + "rate: %.2fMB/s\n", + mbytes(bytes_read), + mbytes(bytes_written), + (double)mbytes(bytes_read + bytes_written) / + timeval_subtract(&time_end, &track->time_start)); + } + } +skip_io: + fflush(stdout); +} + |