| 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 |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 16 | * |
| 17 | */ |
| 18 | #ifndef __IOWATCH_PLOT__ |
| 19 | #define __IOWATCH_PLOT__ |
| 20 | #define MAX_TICKS 10 |
| 21 | |
| 22 | #include "list.h" |
| 23 | |
| 24 | typedef __u64 u64; |
| 25 | typedef __u32 u32; |
| 26 | typedef __u16 u16; |
| 27 | |
| 28 | |
| 29 | /* values for the plot direction field */ |
| 30 | #define PLOT_DOWN 0 |
| 31 | #define PLOT_ACROSS 1 |
| 32 | |
| 33 | struct plot { |
| 34 | int fd; |
| 35 | |
| 36 | /* svg style y = 0 is the top of the graph */ |
| 37 | int start_y_offset; |
| 38 | |
| 39 | /* abs coords of the start of X start of the plot */ |
| 40 | int start_x_offset; |
| 41 | |
| 42 | int add_xlabel; |
| 43 | int no_legend; |
| 44 | |
| 45 | /* |
| 46 | * these two are for anyone that wants |
| 47 | * to add a plot after this one, it tells |
| 48 | * them how much space we took up |
| 49 | */ |
| 50 | int total_height; |
| 51 | int total_width; |
| 52 | char **legend_lines; |
| 53 | int legend_index; |
| 54 | int num_legend_lines; |
| 55 | int direction; |
| 56 | |
| 57 | /* |
| 58 | * timeline is a vertical line through line graphs that |
| 59 | * is used by the movie mode to show where in the graph |
| 60 | * our current frame lives |
| 61 | */ |
| 62 | int timeline; |
| 63 | }; |
| 64 | |
| 65 | struct graph_line_pair { |
| 66 | u64 count; |
| 67 | u64 sum; |
| 68 | }; |
| 69 | |
| 70 | struct graph_line_data { |
| 71 | /* beginning of an interval displayed by this graph */ |
| 72 | unsigned int min_seconds; |
| 73 | |
| 74 | /* end of an interval displayed by this graph */ |
| 75 | unsigned int max_seconds; |
| 76 | |
| 77 | unsigned int stop_seconds; |
| 78 | |
| 79 | /* Y max */ |
| 80 | u64 max; |
| 81 | |
| 82 | /* label for this graph */ |
| 83 | char *label; |
| 84 | struct graph_line_pair data[]; |
| 85 | }; |
| 86 | |
| 87 | struct graph_dot_data { |
| 88 | u64 min_offset; |
| 89 | u64 max_offset; |
| 90 | u64 max_bank; |
| 91 | u64 max_bank_offset; |
| 92 | u64 total_ios; |
| 93 | u64 total_bank_ios; |
| 94 | |
| 95 | int add_bank_ios; |
| 96 | |
| 97 | /* in pixels, number of rows in our bitmap */ |
| 98 | int rows; |
| 99 | /* in pixels, number of cols in our bitmap */ |
| 100 | int cols; |
| 101 | |
| 102 | /* beginning of an interval displayed by this graph */ |
| 103 | int min_seconds; |
| 104 | |
| 105 | /* end of an interval displayed by this graph */ |
| 106 | unsigned int max_seconds; |
| 107 | unsigned int stop_seconds; |
| 108 | |
| 109 | /* label for the legend */ |
| 110 | char *label; |
| 111 | |
| 112 | /* color for plotting data */ |
| 113 | char *color; |
| 114 | |
| 115 | /* bitmap, one bit for each cell to light up */ |
| 116 | unsigned char data[]; |
| 117 | }; |
| 118 | |
| 119 | struct pid_plot_history { |
| 120 | double history_max; |
| 121 | int history_len; |
| 122 | int num_used; |
| 123 | char *color; |
| 124 | double *history; |
| 125 | }; |
| 126 | |
| 127 | struct plot_history { |
| 128 | struct list_head list; |
| 129 | int pid_history_count; |
| 130 | int col; |
| 131 | struct pid_plot_history **read_pid_history; |
| 132 | struct pid_plot_history **write_pid_history; |
| 133 | }; |
| 134 | |
| 135 | char *pick_color(void); |
| 136 | char *pick_fio_color(void); |
| 137 | char *pick_cpu_color(void); |
| 138 | void reset_cpu_color(void); |
| 139 | int svg_io_graph(struct plot *plot, struct graph_dot_data *gdd); |
| 140 | int svg_line_graph(struct plot *plot, struct graph_line_data *gld, char *color, int thresh1, int thresh2); |
| 141 | struct graph_line_data *alloc_line_data(unsigned int min_seconds, unsigned int max_seconds, unsigned int stop_seconds); |
| 142 | void free_line_data(struct graph_line_data *gld); |
| 143 | struct graph_dot_data *alloc_dot_data(unsigned int min_seconds, unsigned int max_seconds, u64 min_offset, u64 max_offset, unsigned int stop_seconds, char *color, char *label); |
| 144 | void free_dot_data(struct graph_dot_data *gdd); |
| 145 | void set_gdd_bit(struct graph_dot_data *gdd, u64 offset, double bytes, double time); |
| 146 | void print_gdd(struct graph_dot_data *gdd); |
| 147 | void write_svg_header(int fd); |
| 148 | struct plot *alloc_plot(void); |
| 149 | int close_plot(struct plot *plot); |
| 150 | int close_plot_no_height(struct plot *plot); |
| 151 | void setup_axis(struct plot *plot); |
| 152 | void set_xticks(struct plot *plot, int num_ticks, int first, int last); |
| 153 | void set_yticks(struct plot *plot, int num_ticks, int first, int last, char *units); |
| 154 | void set_plot_title(struct plot *plot, char *title); |
| 155 | void set_plot_label(struct plot *plot, char *label); |
| 156 | void set_xlabel(struct plot *plot, char *label); |
| 157 | void set_ylabel(struct plot *plot, char *label); |
| 158 | void scale_line_graph_bytes(u64 *max, char **units, u64 factor); |
| 159 | void scale_line_graph_time(u64 *max, char **units); |
| 160 | void write_drop_shadow(struct plot *plot); |
| 161 | void write_drop_shadow_line(struct plot *plot); |
| 162 | void svg_write_legend(struct plot *plot); |
| 163 | void svg_add_legend(struct plot *plot, char *text, char *extra, char *color); |
| 164 | void svg_alloc_legend(struct plot *plot, int num_lines); |
| 165 | void set_legend_width(int longest_str); |
| 166 | void set_rolling_avg(int rolling); |
| 167 | void svg_free_legend(struct plot *plot); |
| 168 | void set_io_graph_scale(int scale); |
| 169 | void set_plot_output(struct plot *plot, char *filename); |
| 170 | void set_graph_size(int width, int height); |
| 171 | void get_graph_size(int *width, int *height); |
| 172 | int svg_io_graph_movie(struct graph_dot_data *gdd, struct pid_plot_history *ph, int col); |
| 173 | int svg_io_graph_movie_array(struct plot *plot, struct pid_plot_history *ph); |
| 174 | void svg_write_time_line(struct plot *plot, int col); |
| 175 | void set_graph_height(int h); |
| 176 | void set_graph_width(int w); |
| 177 | int close_plot_file(struct plot *plot); |
| 178 | int svg_io_graph_movie_array_spindle(struct plot *plot, struct pid_plot_history *ph); |
| 179 | void rewind_spindle_steps(int num); |
| 180 | void setup_axis_spindle(struct plot *plot); |
| 181 | int close_plot_col(struct plot *plot); |
| 182 | |
| 183 | #endif |