]>
git.ipfire.org Git - thirdparty/e2fsprogs.git/blob - resize/resource_track.c
2 * resource_track.c --- resource tracking
4 * Copyright (C) 2013 by Theodore Ts'o
7 * This file may be redistributed under the terms of the GNU Public
14 #include "resize2fs.h"
19 #include <sys/resource.h>
21 void init_resource_track(struct resource_track
*track
, const char *desc
,
27 io_stats io_start
= 0;
30 track
->brk_start
= sbrk(0);
31 gettimeofday(&track
->time_start
, 0);
34 memset(&r
, 0, sizeof(struct rusage
));
36 getrusage(RUSAGE_SELF
, &r
);
37 track
->user_start
= r
.ru_utime
;
38 track
->system_start
= r
.ru_stime
;
40 track
->user_start
.tv_sec
= track
->user_start
.tv_usec
= 0;
41 track
->system_start
.tv_sec
= track
->system_start
.tv_usec
= 0;
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
);
48 track
->bytes_read
= io_start
->bytes_read
;
49 track
->bytes_written
= io_start
->bytes_written
;
53 static float timeval_subtract(struct timeval
*tv1
,
56 return ((tv1
->tv_sec
- tv2
->tv_sec
) +
57 ((float) (tv1
->tv_usec
- tv2
->tv_usec
)) / 1000000);
60 void print_resource_track(ext2_resize_t rfs
, struct resource_track
*track
,
67 struct mallinfo malloc_info
;
69 struct timeval time_end
;
71 if ((rfs
->flags
& RESIZE_DEBUG_RTRACK
) == 0)
74 gettimeofday(&time_end
, 0);
77 printf("%s: ", track
->desc
);
80 #define kbytes(x) (((unsigned long)(x) + 1023) / 1024)
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
));
87 printf("Memory used: %lu, ",
88 (unsigned long) (((char *) sbrk(0)) -
89 ((char *) track
->brk_start
)));
92 getrusage(RUSAGE_SELF
, &r
);
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
));
99 printf("elapsed time: %6.3f\n",
100 timeval_subtract(&time_end
, &track
->time_start
));
102 #define mbytes(x) (((x) + 1048575) / 1048576)
103 if (channel
&& channel
->manager
&& channel
->manager
->get_stats
) {
105 unsigned long long bytes_read
= 0;
106 unsigned long long bytes_written
= 0;
108 channel
->manager
->get_stats(channel
, &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)
116 printf("%s: ", track
->desc
);
117 printf("I/O read: %lluMB, write: %lluMB, "
120 mbytes(bytes_written
),
121 (double)mbytes(bytes_read
+ bytes_written
) /
122 timeval_subtract(&time_end
, &track
->time_start
));