Commit | Line | Data |
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7c9b1bce JA |
1 | #ifndef FIO_DISKUTIL_H |
2 | #define FIO_DISKUTIL_H | |
cc372b17 | 3 | #include "json.h" |
d09a64a0 JA |
4 | #define FIO_DU_NAME_SZ 64 |
5 | ||
5ddc6707 | 6 | extern volatile int helper_exit; |
27357187 | 7 | |
a3b4cf7d | 8 | struct disk_util_stats { |
504bc961 JA |
9 | uint64_t ios[2]; |
10 | uint64_t merges[2]; | |
d09a64a0 | 11 | uint64_t sectors[2]; |
504bc961 JA |
12 | uint64_t ticks[2]; |
13 | uint64_t io_ticks; | |
14 | uint64_t time_in_queue; | |
d09a64a0 JA |
15 | uint64_t msec; |
16 | }; | |
17 | ||
a3b4cf7d JA |
18 | /* |
19 | * Disk utils as read in /sys/block/<dev>/stat | |
20 | */ | |
21 | struct disk_util_stat { | |
22 | uint8_t name[FIO_DU_NAME_SZ]; | |
23 | struct disk_util_stats s; | |
24 | }; | |
25 | ||
d09a64a0 | 26 | struct disk_util_agg { |
504bc961 JA |
27 | uint64_t ios[2]; |
28 | uint64_t merges[2]; | |
d09a64a0 | 29 | uint64_t sectors[2]; |
504bc961 JA |
30 | uint64_t ticks[2]; |
31 | uint64_t io_ticks; | |
32 | uint64_t time_in_queue; | |
d09a64a0 | 33 | uint32_t slavecount; |
504bc961 | 34 | uint32_t pad; |
d09a64a0 | 35 | fio_fp64_t max_util; |
7c9b1bce JA |
36 | }; |
37 | ||
38 | /* | |
39 | * Per-device disk util management | |
40 | */ | |
41 | struct disk_util { | |
42 | struct flist_head list; | |
43 | /* If this disk is a slave, hook it into the master's | |
44 | * list using this head. | |
45 | */ | |
46 | struct flist_head slavelist; | |
47 | ||
48 | char *name; | |
49 | char *sysfs_root; | |
4b919f77 | 50 | char path[PATH_MAX]; |
7c9b1bce JA |
51 | int major, minor; |
52 | ||
53 | struct disk_util_stat dus; | |
54 | struct disk_util_stat last_dus; | |
55 | ||
d09a64a0 JA |
56 | struct disk_util_agg agg; |
57 | ||
7c9b1bce JA |
58 | /* For software raids, this entry maintains pointers to the |
59 | * entries for the slave devices. The disk_util entries for | |
60 | * the slaves devices should primarily be maintained through | |
61 | * the disk_list list, i.e. for memory allocation and | |
62 | * de-allocation, etc. Whereas this list should be used only | |
63 | * for aggregating a software RAID's disk util figures. | |
64 | */ | |
65 | struct flist_head slaves; | |
66 | ||
7c9b1bce JA |
67 | struct timeval time; |
68 | ||
69 | struct fio_mutex *lock; | |
70 | unsigned long users; | |
71 | }; | |
72 | ||
e99ca81d | 73 | static inline void disk_util_mod(struct disk_util *du, int val) |
7c9b1bce JA |
74 | { |
75 | if (du) { | |
e99ca81d JA |
76 | struct flist_head *n; |
77 | ||
7c9b1bce | 78 | fio_mutex_down(du->lock); |
e99ca81d JA |
79 | du->users += val; |
80 | ||
81 | flist_for_each(n, &du->slavelist) { | |
82 | struct disk_util *slave; | |
83 | ||
84 | slave = flist_entry(n, struct disk_util, slavelist); | |
85 | slave->users += val; | |
86 | } | |
7c9b1bce JA |
87 | fio_mutex_up(du->lock); |
88 | } | |
89 | } | |
e99ca81d JA |
90 | static inline void disk_util_inc(struct disk_util *du) |
91 | { | |
92 | disk_util_mod(du, 1); | |
93 | } | |
7c9b1bce JA |
94 | |
95 | static inline void disk_util_dec(struct disk_util *du) | |
96 | { | |
e99ca81d | 97 | disk_util_mod(du, -1); |
7c9b1bce JA |
98 | } |
99 | ||
100 | #define DISK_UTIL_MSEC (250) | |
101 | ||
d09a64a0 JA |
102 | extern struct flist_head disk_list; |
103 | ||
7c9b1bce JA |
104 | /* |
105 | * disk util stuff | |
106 | */ | |
107 | #ifdef FIO_HAVE_DISK_UTIL | |
f2f788dd | 108 | extern void print_disk_util(struct disk_util_stat *, struct disk_util_agg *, int terse); |
cc372b17 | 109 | extern void show_disk_util(int terse, struct json_object *parent); |
952b05e0 CF |
110 | extern void json_array_add_disk_util(struct disk_util_stat *dus, |
111 | struct disk_util_agg *agg, struct json_array *parent); | |
7c9b1bce | 112 | extern void init_disk_util(struct thread_data *); |
9ec7779f JA |
113 | extern int update_io_ticks(void); |
114 | extern void setup_disk_util(void); | |
27357187 | 115 | extern void disk_util_prune_entries(void); |
7c9b1bce | 116 | #else |
941bda94 JA |
117 | static inline void print_disk_util(struct disk_util_stat *du, |
118 | struct disk_util_agg *agg, int terse) | |
119 | { | |
120 | } | |
cc372b17 | 121 | #define show_disk_util(terse, parent) |
27357187 | 122 | #define disk_util_prune_entries() |
7c9b1bce | 123 | #define init_disk_util(td) |
9ec7779f | 124 | #define setup_disk_util() |
952b05e0 CF |
125 | #define json_array_add_disk_util(dus, agg, parent) |
126 | ||
9ec7779f JA |
127 | static inline int update_io_ticks(void) |
128 | { | |
5ddc6707 | 129 | return helper_exit; |
9ec7779f | 130 | } |
7c9b1bce JA |
131 | #endif |
132 | ||
133 | #endif |