Commit | Line | Data |
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63eba147 JA |
1 | /* |
2 | * blktrace output analysis: generate a timeline & gather statistics | |
3 | * | |
4 | * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
63eba147 JA |
21 | #include <stdio.h> |
22 | #include <string.h> | |
6eb42155 | 23 | #include <time.h> |
63eba147 JA |
24 | |
25 | #include "blktrace.h" | |
6eb42155 | 26 | #include "rbtree.h" |
63eba147 JA |
27 | #include "list.h" |
28 | ||
fa0ab85d AB |
29 | /* |
30 | * 0 == 1 blk | |
31 | * 1 == 2 blks | |
32 | * ... | |
33 | * 1022 == 1023 blks | |
34 | * 1023 == 1024 blks | |
35 | * 1024 == > 1024 blks | |
36 | */ | |
37 | #define N_HIST_BKTS 1025 | |
38 | ||
63eba147 JA |
39 | #define BIT_TIME(t) ((double)SECONDS(t) + ((double)NANO_SECONDS(t) / 1.0e9)) |
40 | ||
41 | #define BIT_START(iop) ((iop)->t.sector) | |
42 | #define BIT_END(iop) ((iop)->t.sector + ((iop)->t.bytes >> 9)) | |
5225e788 | 43 | #define IOP_READ(iop) ((iop)->t.action & BLK_TC_ACT(BLK_TC_READ)) |
21e47d90 | 44 | #define IOP_RW(iop) (IOP_READ(iop) ? 1 : 0) |
63eba147 | 45 | |
b2ecdd0f ADB |
46 | #define TO_SEC(nanosec) ((double)(nanosec) / 1.0e9) |
47 | #define TO_MSEC(nanosec) (1000.0 * TO_SEC(nanosec)) | |
48 | ||
63eba147 JA |
49 | enum iop_type { |
50 | IOP_Q = 0, | |
51 | IOP_X = 1, | |
52 | IOP_A = 2, | |
4c48f14e | 53 | IOP_G = 3, |
095181f2 | 54 | IOP_M = 4, |
d76c5b81 AB |
55 | IOP_D = 5, |
56 | IOP_C = 6, | |
57 | IOP_R = 7, | |
354db430 AB |
58 | IOP_I = 8, |
59 | IOP_S = 9 | |
63eba147 | 60 | }; |
354db430 | 61 | #define N_IOP_TYPES (IOP_S + 1) |
63eba147 | 62 | |
b2ecdd0f ADB |
63 | struct file_info { |
64 | struct file_info *next; | |
65 | FILE *ofp; | |
69040794 | 66 | char *oname; |
b2ecdd0f ADB |
67 | }; |
68 | ||
6eb42155 ADB |
69 | struct mode { |
70 | int most_seeks, nmds; | |
71 | long long *modes; | |
63eba147 JA |
72 | }; |
73 | ||
74 | struct io; | |
75 | struct io_list { | |
76 | struct list_head head; | |
77 | struct io *iop; | |
78 | int cy_users; | |
79 | }; | |
80 | ||
81 | struct avg_info { | |
82 | __u64 min, max, total; | |
83 | double avg; | |
84 | int n; | |
85 | }; | |
86 | ||
87 | struct avgs_info { | |
ae6d30f4 AB |
88 | struct avg_info q2q_dm; |
89 | struct avg_info q2a_dm; | |
90 | struct avg_info q2c_dm; | |
91 | ||
63eba147 | 92 | struct avg_info q2q; |
ae6d30f4 AB |
93 | struct avg_info q2a; |
94 | struct avg_info q2g; | |
354db430 | 95 | struct avg_info s2g; |
ae6d30f4 AB |
96 | struct avg_info g2i; |
97 | struct avg_info q2m; | |
98 | struct avg_info i2d; | |
99 | struct avg_info m2d; | |
63eba147 | 100 | struct avg_info d2c; |
ae6d30f4 | 101 | struct avg_info q2c; |
63eba147 JA |
102 | |
103 | struct avg_info blks; /* Blocks transferred */ | |
104 | }; | |
105 | ||
106 | struct range_info { | |
107 | struct list_head head; /* on: qranges OR cranges */ | |
108 | __u64 start, end; | |
109 | }; | |
110 | ||
111 | struct region_info { | |
112 | struct list_head qranges; | |
113 | struct list_head cranges; | |
63eba147 JA |
114 | }; |
115 | ||
63eba147 | 116 | struct p_info { |
63eba147 JA |
117 | struct region_info regions; |
118 | struct avgs_info avgs; | |
63eba147 | 119 | __u64 last_q; |
6eb42155 | 120 | __u32 pid; |
69040794 | 121 | char *name; |
63eba147 JA |
122 | }; |
123 | ||
124 | struct devmap { | |
125 | struct devmap *next; | |
6eb42155 | 126 | unsigned int host, bus, target, lun, irq, cpu; |
63eba147 | 127 | char model[64]; |
6eb42155 | 128 | char device[32], node[32], pci[32], devno[32]; |
63eba147 JA |
129 | }; |
130 | ||
21e47d90 | 131 | struct stats { |
6eb42155 | 132 | __u64 rqm[2], ios[2], sec[2], wait, svctm; |
21e47d90 | 133 | double last_qu_change, last_dev_change, tot_qusz, idle_time; |
6eb42155 | 134 | int cur_qusz, cur_dev; |
21e47d90 ADB |
135 | }; |
136 | ||
4a5cddba JA |
137 | struct stats_t { |
138 | double n; | |
139 | double rqm_s[2], ios_s[2], sec_s[2]; | |
140 | double avgrq_sz, avgqu_sz, await, svctm, p_util; | |
141 | }; | |
142 | ||
63eba147 | 143 | struct d_info { |
6eb42155 ADB |
144 | struct list_head all_head, hash_head; |
145 | void *heads; | |
63eba147 | 146 | struct region_info regions; |
63eba147 | 147 | struct devmap *map; |
4c48f14e | 148 | void *q2q_handle, *seek_handle, *bno_dump_handle, *unplug_hist_handle; |
e47ada10 AB |
149 | void *q2d_priv, *aqd_handle; |
150 | void *q2d_plat_handle, *q2c_plat_handle, *d2c_plat_handle; | |
a22df989 | 151 | FILE *q2d_ofp, *d2c_ofp, *q2c_ofp, *pit_fp; |
6eb42155 | 152 | struct avgs_info avgs; |
21e47d90 | 153 | struct stats stats, all_stats; |
77f256cd | 154 | __u64 last_q, n_qs, n_ds; |
50f73899 | 155 | __u64 n_act_q, t_act_q; /* # currently active when Q comes in */ |
6eb42155 | 156 | __u32 device; |
b2822cea | 157 | |
11997716 | 158 | int pre_culling; |
b70a6642 AB |
159 | int is_plugged, nplugs, nplugs_t, n_timer_unplugs; |
160 | __u64 nios_up, nios_upt; | |
b2822cea | 161 | double start_time, last_plug, plugged_time, end_time; |
63eba147 JA |
162 | }; |
163 | ||
164 | struct io { | |
6eb42155 | 165 | struct rb_node rb_node; |
8b10aae0 | 166 | struct list_head f_head, a_head; |
63eba147 JA |
167 | struct d_info *dip; |
168 | struct p_info *pip; | |
6eb42155 | 169 | void *pdu; |
ae6d30f4 | 170 | __u64 bytes_left, g_time, i_time, m_time, d_time, c_time, d_sec, c_sec; |
354db430 | 171 | __u64 s_time; |
4c48f14e AB |
172 | __u32 d_nsec, c_nsec; |
173 | ||
d76c5b81 | 174 | struct blk_io_trace t; |
4c48f14e | 175 | |
ae6d30f4 | 176 | int linked; |
63eba147 | 177 | enum iop_type type; |
d76c5b81 | 178 | }; |
095181f2 | 179 | |
6eb42155 ADB |
180 | /* bt_timeline.c */ |
181 | ||
63eba147 | 182 | extern char bt_timeline_version[], *devices, *exes, *input_name, *output_name; |
095181f2 | 183 | extern char *seek_name, *iostat_name, *d2c_name, *q2c_name, *per_io_name; |
e47ada10 | 184 | extern char *bno_dump_name, *unplug_hist_name, *sps_name, *aqd_name, *q2d_name; |
a22df989 | 185 | extern char *per_io_trees; |
2baef508 | 186 | extern double range_delta, plat_freq; |
f028c958 | 187 | extern FILE *ranges_ofp, *avgs_ofp, *xavgs_ofp, *iostat_ofp, *per_io_ofp; |
84a26fcd | 188 | extern FILE *msgs_ofp; |
69040794 | 189 | extern int verbose, done, time_bounded, output_all_data, seek_absolute; |
f028c958 | 190 | extern int easy_parse_avgs; |
63eba147 | 191 | extern unsigned int n_devs; |
6eb42155 | 192 | extern unsigned long n_traces; |
4c48f14e | 193 | extern struct list_head all_devs, all_procs; |
63eba147 | 194 | extern struct avgs_info all_avgs; |
4c48f14e | 195 | extern __u64 last_q; |
63eba147 | 196 | extern struct region_info all_regions; |
8b10aae0 | 197 | extern struct list_head all_ios, free_ios; |
21e47d90 | 198 | extern __u64 iostat_interval, iostat_last_stamp; |
6eb42155 | 199 | extern time_t genesis, last_vtrace; |
001b2633 | 200 | extern double t_astart, t_aend; |
fa0ab85d | 201 | extern __u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS]; |
63eba147 | 202 | |
6eb42155 | 203 | /* args.c */ |
63eba147 | 204 | void handle_args(int argc, char *argv[]); |
c8aea612 | 205 | void clean_args(); |
6eb42155 | 206 | |
4ae2c3c6 AB |
207 | /* aqd.c */ |
208 | void *aqd_init(char *str); | |
2baef508 AB |
209 | void aqd_exit(void *info); |
210 | void aqd_clean(void); | |
4ae2c3c6 AB |
211 | void aqd_issue(void *info, double ts); |
212 | void aqd_complete(void *info, double ts); | |
213 | ||
69040794 | 214 | /* devmap.c */ |
63eba147 | 215 | int dev_map_read(char *fname); |
6eb42155 | 216 | struct devmap *dev_map_find(__u32 device); |
69040794 | 217 | void dev_map_exit(void); |
63eba147 | 218 | |
6eb42155 ADB |
219 | /* devs.c */ |
220 | void init_dev_heads(void); | |
095181f2 | 221 | struct d_info *dip_add(__u32 device, struct io *iop); |
6eb42155 ADB |
222 | void dip_rem(struct io *iop); |
223 | struct d_info *__dip_find(__u32 device); | |
095181f2 | 224 | void dip_foreach_list(struct io *iop, enum iop_type type, struct list_head *hd); |
8b10aae0 | 225 | void dip_foreach(struct io *iop, enum iop_type type, |
6eb42155 ADB |
226 | void (*fnc)(struct io *iop, struct io *this), int rm_after); |
227 | struct io *dip_find_sec(struct d_info *dip, enum iop_type type, __u64 sec); | |
228 | void dip_foreach_out(void (*func)(struct d_info *, void *), void *arg); | |
b2822cea | 229 | void dip_plug(__u32 dev, double cur_time); |
b70a6642 AB |
230 | void dip_unplug(__u32 dev, double cur_time, __u64 nio_ups); |
231 | void dip_unplug_tm(__u32 dev, __u64 nio_ups); | |
69040794 | 232 | void dip_exit(void); |
6eb42155 ADB |
233 | |
234 | /* dip_rb.c */ | |
095181f2 | 235 | int rb_insert(struct rb_root *root, struct io *iop); |
6eb42155 | 236 | struct io *rb_find_sec(struct rb_root *root, __u64 sec); |
8b10aae0 | 237 | void rb_foreach(struct rb_node *n, struct io *iop, |
6eb42155 ADB |
238 | void (*fnc)(struct io *iop, struct io *this), |
239 | struct list_head *head); | |
240 | ||
241 | /* iostat.c */ | |
21e47d90 | 242 | void iostat_init(void); |
4c48f14e | 243 | void iostat_getrq(struct io *iop); |
21e47d90 ADB |
244 | void iostat_merge(struct io *iop); |
245 | void iostat_issue(struct io *iop); | |
6eb42155 ADB |
246 | void iostat_unissue(struct io *iop); |
247 | void iostat_complete(struct io *d_iop, struct io *c_iop); | |
21e47d90 ADB |
248 | void iostat_check_time(__u64 stamp); |
249 | void iostat_dump_stats(__u64 stamp, int all); | |
250 | ||
6eb42155 | 251 | /* latency.c */ |
b2ecdd0f ADB |
252 | void latency_init(struct d_info *dip); |
253 | void latency_clean(void); | |
e47ada10 | 254 | void latency_q2d(struct d_info *dip, __u64 tstamp, __u64 latency); |
b2ecdd0f ADB |
255 | void latency_d2c(struct d_info *dip, __u64 tstamp, __u64 latency); |
256 | void latency_q2c(struct d_info *dip, __u64 tstamp, __u64 latency); | |
257 | ||
6eb42155 | 258 | /* misc.c */ |
6eb42155 | 259 | int in_devices(struct blk_io_trace *t); |
6eb42155 ADB |
260 | void add_file(struct file_info **fipp, FILE *fp, char *oname); |
261 | void clean_files(struct file_info **fipp); | |
69040794 AB |
262 | void add_buf(void *buf); |
263 | void clean_bufs(void); | |
84a26fcd | 264 | char *make_dev_hdr(char *pad, size_t len, struct d_info *dip, int add_parens); |
99bb5ebc | 265 | FILE *my_fopen(const char *path, const char *mode); |
e6855475 | 266 | int my_open(const char *path, int flags); |
6eb42155 ADB |
267 | void dbg_ping(void); |
268 | ||
d76c5b81 AB |
269 | /* mmap.c */ |
270 | void setup_ifile(char *fname); | |
271 | void cleanup_ifile(void); | |
272 | int next_trace(struct blk_io_trace *t, void **pdu); | |
32ff7e3b | 273 | double pct_done(void); |
d76c5b81 | 274 | |
6eb42155 ADB |
275 | /* output.c */ |
276 | int output_avgs(FILE *ofp); | |
277 | int output_ranges(FILE *ofp); | |
6eb42155 ADB |
278 | |
279 | /* proc.c */ | |
280 | void add_process(__u32 pid, char *name); | |
281 | struct p_info *find_process(__u32 pid, char *name); | |
282 | void pip_update_q(struct io *iop); | |
283 | void pip_foreach_out(void (*f)(struct p_info *, void *), void *arg); | |
69040794 AB |
284 | void pip_exit(void); |
285 | ||
286 | /* bno_dump.c */ | |
287 | void *bno_dump_init(__u32 device); | |
288 | void bno_dump_exit(void *param); | |
289 | void bno_dump_add(void *handle, struct io *iop); | |
290 | void bno_dump_clean(void); | |
6eb42155 | 291 | |
2baef508 AB |
292 | /* plat.c */ |
293 | void *plat_init(char *str); | |
294 | void plat_exit(void *info); | |
295 | void plat_clean(void); | |
296 | void plat_x2c(void *info, __u64 ts, __u64 latency); | |
297 | ||
951ea56c AB |
298 | /* q2d.c */ |
299 | void q2d_histo_add(void *priv, __u64 q2d); | |
300 | void *q2d_init(void); | |
301 | void q2d_release(void *priv); | |
302 | void q2d_display_header(FILE *fp); | |
303 | void q2d_display_dashes(FILE *fp); | |
304 | void q2d_display(FILE *fp, void *priv); | |
305 | int q2d_ok(void *priv); | |
306 | void q2d_acc(void *a1, void *a2); | |
307 | ||
6eb42155 | 308 | /* seek.c */ |
4c48f14e | 309 | void *seeki_init(char *str); |
69040794 | 310 | void seeki_exit(void *param); |
6eb42155 ADB |
311 | void seek_clean(void); |
312 | void seeki_add(void *handle, struct io *iop); | |
313 | double seeki_mean(void *handle); | |
314 | long long seeki_nseeks(void *handle); | |
315 | long long seeki_median(void *handle); | |
316 | int seeki_mode(void *handle, struct mode *mp); | |
317 | ||
318 | /* trace.c */ | |
319 | void add_trace(struct io *iop); | |
320 | ||
095181f2 JA |
321 | /* trace_complete.c */ |
322 | void trace_complete(struct io *c_iop); | |
095181f2 JA |
323 | |
324 | /* trace_im.c */ | |
c8b0b334 AB |
325 | void run_im(struct io *im_iop, struct io *d_iop, struct io *c_iop); |
326 | void run_unim(struct io *im_iop, struct io *d_iop, struct io *c_iop); | |
d76c5b81 | 327 | int ready_im(struct io *im_iop, struct io *c_iop); |
095181f2 JA |
328 | void trace_insert(struct io *i_iop); |
329 | void trace_merge(struct io *m_iop); | |
4c48f14e | 330 | void trace_getrq(struct io *g_iop); |
354db430 | 331 | void trace_sleeprq(struct io *s_iop); |
095181f2 JA |
332 | |
333 | /* trace_issue.c */ | |
c8b0b334 AB |
334 | void run_issue(struct io *d_iop, struct io *u_iop, struct io *c_iop); |
335 | void run_unissue(struct io *d_iop, struct io *u_iop, struct io *c_iop); | |
d76c5b81 | 336 | int ready_issue(struct io *d_iop, struct io *c_iop); |
095181f2 | 337 | void trace_issue(struct io *d_iop); |
095181f2 | 338 | |
b2822cea | 339 | /* trace_plug.c */ |
b70a6642 | 340 | __u64 get_nio_up(struct io *u_iop); |
b2822cea AB |
341 | void trace_plug(struct io *p_iop); |
342 | void trace_unplug_io(struct io *u_iop); | |
343 | void trace_unplug_timer(struct io *u_iop); | |
344 | ||
095181f2 | 345 | /* trace_queue.c */ |
c8b0b334 | 346 | void run_queue(struct io *q_iop, struct io *u_iop, struct io *c_iop); |
d76c5b81 | 347 | int ready_queue(struct io *q_iop, struct io *c_iop); |
095181f2 | 348 | void trace_queue(struct io *q_iop); |
095181f2 JA |
349 | |
350 | /* trace_remap.c */ | |
c8b0b334 | 351 | void run_remap(struct io *a_iop, struct io *u_iop, struct io *c_iop); |
d76c5b81 | 352 | int ready_remap(struct io *a_iop, struct io *c_iop); |
095181f2 | 353 | void trace_remap(struct io *a_iop); |
095181f2 JA |
354 | |
355 | /* trace_requeue.c */ | |
356 | void trace_requeue(struct io *r_iop); | |
095181f2 | 357 | |
fc16a815 AB |
358 | /* unplug_hist.c */ |
359 | void *unplug_hist_init(__u32 device); | |
360 | void unplug_hist_exit(void *arg); | |
361 | void unplug_hist_add(struct io *u_iop); | |
362 | ||
63eba147 | 363 | #include "inlines.h" |