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 | ||
a666cab8 JA |
6 | #include "lib/output_buffer.h" |
7 | ||
5ddc6707 | 8 | extern volatile int helper_exit; |
27357187 | 9 | |
a3b4cf7d | 10 | struct disk_util_stats { |
504bc961 JA |
11 | uint64_t ios[2]; |
12 | uint64_t merges[2]; | |
d09a64a0 | 13 | uint64_t sectors[2]; |
504bc961 JA |
14 | uint64_t ticks[2]; |
15 | uint64_t io_ticks; | |
16 | uint64_t time_in_queue; | |
d09a64a0 JA |
17 | uint64_t msec; |
18 | }; | |
19 | ||
a3b4cf7d JA |
20 | /* |
21 | * Disk utils as read in /sys/block/<dev>/stat | |
22 | */ | |
23 | struct disk_util_stat { | |
24 | uint8_t name[FIO_DU_NAME_SZ]; | |
25 | struct disk_util_stats s; | |
26 | }; | |
27 | ||
d09a64a0 | 28 | struct disk_util_agg { |
504bc961 JA |
29 | uint64_t ios[2]; |
30 | uint64_t merges[2]; | |
d09a64a0 | 31 | uint64_t sectors[2]; |
504bc961 JA |
32 | uint64_t ticks[2]; |
33 | uint64_t io_ticks; | |
34 | uint64_t time_in_queue; | |
d09a64a0 | 35 | uint32_t slavecount; |
504bc961 | 36 | uint32_t pad; |
d09a64a0 | 37 | fio_fp64_t max_util; |
7c9b1bce JA |
38 | }; |
39 | ||
40 | /* | |
41 | * Per-device disk util management | |
42 | */ | |
43 | struct disk_util { | |
44 | struct flist_head list; | |
45 | /* If this disk is a slave, hook it into the master's | |
46 | * list using this head. | |
47 | */ | |
48 | struct flist_head slavelist; | |
49 | ||
50 | char *name; | |
51 | char *sysfs_root; | |
4b919f77 | 52 | char path[PATH_MAX]; |
7c9b1bce JA |
53 | int major, minor; |
54 | ||
55 | struct disk_util_stat dus; | |
56 | struct disk_util_stat last_dus; | |
57 | ||
d09a64a0 JA |
58 | struct disk_util_agg agg; |
59 | ||
7c9b1bce JA |
60 | /* For software raids, this entry maintains pointers to the |
61 | * entries for the slave devices. The disk_util entries for | |
62 | * the slaves devices should primarily be maintained through | |
63 | * the disk_list list, i.e. for memory allocation and | |
64 | * de-allocation, etc. Whereas this list should be used only | |
65 | * for aggregating a software RAID's disk util figures. | |
66 | */ | |
67 | struct flist_head slaves; | |
68 | ||
7c9b1bce JA |
69 | struct timeval time; |
70 | ||
71 | struct fio_mutex *lock; | |
72 | unsigned long users; | |
73 | }; | |
74 | ||
e99ca81d | 75 | static inline void disk_util_mod(struct disk_util *du, int val) |
7c9b1bce JA |
76 | { |
77 | if (du) { | |
e99ca81d JA |
78 | struct flist_head *n; |
79 | ||
7c9b1bce | 80 | fio_mutex_down(du->lock); |
e99ca81d JA |
81 | du->users += val; |
82 | ||
83 | flist_for_each(n, &du->slavelist) { | |
84 | struct disk_util *slave; | |
85 | ||
86 | slave = flist_entry(n, struct disk_util, slavelist); | |
87 | slave->users += val; | |
88 | } | |
7c9b1bce JA |
89 | fio_mutex_up(du->lock); |
90 | } | |
91 | } | |
e99ca81d JA |
92 | static inline void disk_util_inc(struct disk_util *du) |
93 | { | |
94 | disk_util_mod(du, 1); | |
95 | } | |
7c9b1bce JA |
96 | |
97 | static inline void disk_util_dec(struct disk_util *du) | |
98 | { | |
e99ca81d | 99 | disk_util_mod(du, -1); |
7c9b1bce JA |
100 | } |
101 | ||
102 | #define DISK_UTIL_MSEC (250) | |
103 | ||
d09a64a0 JA |
104 | extern struct flist_head disk_list; |
105 | ||
7c9b1bce JA |
106 | /* |
107 | * disk util stuff | |
108 | */ | |
109 | #ifdef FIO_HAVE_DISK_UTIL | |
a666cab8 JA |
110 | extern void print_disk_util(struct disk_util_stat *, struct disk_util_agg *, int terse, struct buf_output *); |
111 | extern void show_disk_util(int terse, struct json_object *parent, struct buf_output *); | |
952b05e0 CF |
112 | extern void json_array_add_disk_util(struct disk_util_stat *dus, |
113 | struct disk_util_agg *agg, struct json_array *parent); | |
7c9b1bce | 114 | extern void init_disk_util(struct thread_data *); |
9ec7779f JA |
115 | extern int update_io_ticks(void); |
116 | extern void setup_disk_util(void); | |
27357187 | 117 | extern void disk_util_prune_entries(void); |
7c9b1bce | 118 | #else |
941bda94 | 119 | static inline void print_disk_util(struct disk_util_stat *du, |
a666cab8 JA |
120 | struct disk_util_agg *agg, int terse, |
121 | struct buf_output *out) | |
941bda94 JA |
122 | { |
123 | } | |
a666cab8 | 124 | #define show_disk_util(terse, parent, out) |
27357187 | 125 | #define disk_util_prune_entries() |
7c9b1bce | 126 | #define init_disk_util(td) |
9ec7779f | 127 | #define setup_disk_util() |
952b05e0 CF |
128 | #define json_array_add_disk_util(dus, agg, parent) |
129 | ||
9ec7779f JA |
130 | static inline int update_io_ticks(void) |
131 | { | |
5ddc6707 | 132 | return helper_exit; |
9ec7779f | 133 | } |
7c9b1bce JA |
134 | #endif |
135 | ||
136 | #endif |