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9e066e23 CM |
1 | /* |
2 | * Copyright (C) 2012 Fusion-io | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public | |
6 | * License v2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
660b0411 | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
9e066e23 CM |
16 | * |
17 | * Parts of this file were imported from Jens Axboe's blktrace sources (also GPL) | |
18 | */ | |
19 | #ifndef __IOWATCH_BLKPARSE__ | |
20 | #define __IOWATCH_BLKPARSE__ | |
21 | #define MINORBITS 20 | |
22 | #define MINORMASK ((1 << MINORBITS) - 1) | |
23 | #define SECONDS(x) ((unsigned long long)(x) / 1000000000) | |
24 | #define NANO_SECONDS(x) ((unsigned long long)(x) % 1000000000) | |
25 | #define DOUBLE_TO_NANO_ULL(d) ((unsigned long long)((d) * 1000000000)) | |
26 | #define CHECK_MAGIC(t) (((t)->magic & 0xffffff00) == BLK_IO_TRACE_MAGIC) | |
27 | ||
2203e914 CM |
28 | struct dev_info { |
29 | u32 device; | |
30 | u64 min; | |
31 | u64 max; | |
32 | u64 map; | |
33 | }; | |
34 | ||
35 | #define MAX_DEVICES_PER_TRACE 64 | |
36 | ||
9e066e23 CM |
37 | struct trace { |
38 | int fd; | |
39 | u64 len; | |
40 | char *start; | |
41 | char *cur; | |
42 | struct blk_io_trace *io; | |
43 | u64 start_timestamp; | |
44 | struct timespec abs_start_time; | |
45 | ||
46 | /* | |
47 | * flags for the things we find in the stream | |
48 | * we prefer different events for different things | |
49 | */ | |
50 | int found_issue; | |
51 | int found_completion; | |
52 | int found_queue; | |
e199d546 CM |
53 | |
54 | char *mpstat_start; | |
55 | char *mpstat_cur; | |
56 | u64 mpstat_len; | |
57 | int mpstat_fd; | |
58 | int mpstat_seconds; | |
59 | int mpstat_num_cpus; | |
24e48e03 CM |
60 | |
61 | char *fio_start; | |
62 | char *fio_cur; | |
63 | u64 fio_len; | |
64 | int fio_fd; | |
65 | int fio_seconds; | |
2203e914 CM |
66 | int num_devices; |
67 | struct dev_info devices[MAX_DEVICES_PER_TRACE]; | |
9e066e23 CM |
68 | }; |
69 | ||
0a43b43f JK |
70 | struct trace_file { |
71 | struct list_head list; | |
72 | char *filename; | |
73 | char *label; | |
74 | struct trace *trace; | |
22dd439a JK |
75 | unsigned int stop_seconds; /* Time when trace stops */ |
76 | unsigned int min_seconds; /* Beginning of the interval we should plot */ | |
77 | unsigned int max_seconds; /* End of the interval we should plot */ | |
0a43b43f JK |
78 | u64 min_offset; |
79 | u64 max_offset; | |
80 | ||
2203e914 CM |
81 | char *reads_color; |
82 | char *writes_color; | |
0a43b43f JK |
83 | char *line_color; |
84 | ||
2203e914 CM |
85 | struct graph_line_data *tput_writes_gld; |
86 | struct graph_line_data *tput_reads_gld; | |
0a43b43f JK |
87 | struct graph_line_data *iop_gld; |
88 | struct graph_line_data *latency_gld; | |
89 | struct graph_line_data *queue_depth_gld; | |
24e48e03 CM |
90 | |
91 | int fio_trace; | |
92 | struct graph_line_data *fio_gld; | |
93 | ||
0a43b43f JK |
94 | /* Number of entries in gdd_writes / gdd_reads */ |
95 | int io_plots; | |
24e48e03 | 96 | |
0a43b43f JK |
97 | /* Allocated array size for gdd_writes / gdd_reads */ |
98 | int io_plots_allocated; | |
99 | struct graph_dot_data **gdd_writes; | |
100 | struct graph_dot_data **gdd_reads; | |
101 | ||
22dd439a JK |
102 | unsigned int mpstat_min_seconds; |
103 | unsigned int mpstat_max_seconds; | |
104 | unsigned int mpstat_stop_seconds; | |
0a43b43f JK |
105 | struct graph_line_data **mpstat_gld; |
106 | }; | |
107 | ||
9e066e23 CM |
108 | static inline unsigned int MAJOR(unsigned int dev) |
109 | { | |
110 | return dev >> MINORBITS; | |
111 | } | |
112 | ||
113 | static inline unsigned int MINOR(unsigned int dev) | |
114 | { | |
115 | return dev & MINORMASK; | |
116 | } | |
117 | ||
118 | void init_io_hash_table(void); | |
0a43b43f | 119 | void init_process_hash_table(void); |
9e066e23 CM |
120 | struct trace *open_trace(char *filename); |
121 | u64 find_last_time(struct trace *trace); | |
9b9fa04b JK |
122 | void find_extreme_offsets(struct trace *trace, u64 *min_ret, u64 *max_ret, |
123 | u64 *max_bank_ret, u64 *max_offset_ret); | |
124 | int filter_outliers(struct trace *trace, u64 min_offset, u64 max_offset, | |
9e066e23 | 125 | u64 *yzoom_min, u64 *yzoom_max); |
f2e40ddd | 126 | int action_char_to_num(char action); |
9e066e23 CM |
127 | void add_iop(struct trace *trace, struct graph_line_data *gld); |
128 | void check_record(struct trace *trace); | |
129 | void add_completed_io(struct trace *trace, | |
130 | struct graph_line_data *latency_gld); | |
0a43b43f | 131 | void add_io(struct trace *trace, struct trace_file *tf); |
2203e914 CM |
132 | void add_tput(struct trace *trace, struct graph_line_data *writes_gld, |
133 | struct graph_line_data *reads_gld); | |
9e066e23 CM |
134 | void add_pending_io(struct trace *trace, struct graph_line_data *gld); |
135 | int next_record(struct trace *trace); | |
6a079b02 | 136 | u64 get_record_time(struct trace *trace); |
9e066e23 CM |
137 | void first_record(struct trace *trace); |
138 | #endif |