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 double line_graph_roll_avg_max(struct graph_line_data *gld); 141 int svg_line_graph(struct plot *plot, struct graph_line_data *gld, char *color, int thresh1, int thresh2); 142 struct graph_line_data *alloc_line_data(unsigned int min_seconds, unsigned int max_seconds, unsigned int stop_seconds); 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 set_gdd_bit(struct graph_dot_data *gdd, u64 offset, double bytes, double time); 145 void write_svg_header(int fd); 146 struct plot *alloc_plot(void); 147 int close_plot(struct plot *plot); 148 int close_plot_no_height(struct plot *plot); 149 void setup_axis(struct plot *plot); 150 void set_xticks(struct plot *plot, int num_ticks, int first, int last); 151 void set_yticks(struct plot *plot, int num_ticks, int first, int last, char *units); 152 void set_plot_title(struct plot *plot, char *title); 153 void set_plot_label(struct plot *plot, char *label); 154 void set_xlabel(struct plot *plot, char *label); 155 void set_ylabel(struct plot *plot, char *label); 156 void scale_line_graph_bytes(u64 *max, char **units, u64 factor); 157 void scale_line_graph_time(u64 *max, char **units); 158 void write_drop_shadow_line(struct plot *plot); 159 void svg_write_legend(struct plot *plot); 160 void svg_add_legend(struct plot *plot, char *text, char *extra, char *color); 161 void svg_alloc_legend(struct plot *plot, int num_lines); 162 void set_legend_width(int longest_str); 163 void set_rolling_avg(int rolling); 164 void svg_free_legend(struct plot *plot); 165 void set_io_graph_scale(int scale); 166 void set_plot_output(struct plot *plot, char *filename); 167 void set_graph_size(int width, int height); 168 void get_graph_size(int *width, int *height); 169 int svg_io_graph_movie(struct graph_dot_data *gdd, struct pid_plot_history *ph, int col); 170 int svg_io_graph_movie_array(struct plot *plot, struct pid_plot_history *ph); 171 void svg_write_time_line(struct plot *plot, int col); 172 void set_graph_height(int h); 173 void set_graph_width(int w); 174 int close_plot_file(struct plot *plot); 175 int svg_io_graph_movie_array_spindle(struct plot *plot, struct pid_plot_history *ph); 176 void rewind_spindle_steps(int num); 177 void setup_axis_spindle(struct plot *plot); 178 int close_plot_col(struct plot *plot); 179 180 #endif 181
