projects / blktrace.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 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 | ||
| 28 | struct trace { | |
| 29 | int fd; | |
| 30 | u64 len; | |
| 31 | char *start; | |
| 32 | char *cur; | |
| 33 | struct blk_io_trace *io; | |
| 34 | u64 start_timestamp; | |
| 35 | struct timespec abs_start_time; | |
| 36 | ||
| 37 | /* | |
| 38 | * flags for the things we find in the stream | |
| 39 | * we prefer different events for different things | |
| 40 | */ | |
| 41 | int found_issue; | |
| 42 | int found_completion; | |
| 43 | int found_queue; | |
| e199d546 CM |
44 | |
| 45 | char *mpstat_start; | |
| 46 | char *mpstat_cur; | |
| 47 | u64 mpstat_len; | |
| 48 | int mpstat_fd; | |
| 49 | int mpstat_seconds; | |
| 50 | int mpstat_num_cpus; | |
| 9e066e23 CM |
51 | }; |
| 52 | ||
| 53 | static inline unsigned int MAJOR(unsigned int dev) | |
| 54 | { | |
| 55 | return dev >> MINORBITS; | |
| 56 | } | |
| 57 | ||
| 58 | static inline unsigned int MINOR(unsigned int dev) | |
| 59 | { | |
| 60 | return dev & MINORMASK; | |
| 61 | } | |
| 62 | ||
| 63 | void init_io_hash_table(void); | |
| 64 | struct trace *open_trace(char *filename); | |
| 65 | u64 find_last_time(struct trace *trace); | |
| bfb0e441 CM |
66 | void find_highest_offset(struct trace *trace, u64 *max_ret, u64 *max_bank_ret, |
| 67 | u64 *max_offset_ret); | |
| 9e066e23 CM |
68 | int filter_outliers(struct trace *trace, u64 max_offset, |
| 69 | u64 *yzoom_min, u64 *yzoom_max); | |
| 9e066e23 CM |
70 | void add_iop(struct trace *trace, struct graph_line_data *gld); |
| 71 | void check_record(struct trace *trace); | |
| 72 | void add_completed_io(struct trace *trace, | |
| 73 | struct graph_line_data *latency_gld); | |
| 74 | void add_io(struct trace *trace, struct graph_dot_data *gdd_writes, | |
| 75 | struct graph_dot_data *gdd_reads); | |
| 76 | void add_tput(struct trace *trace, struct graph_line_data *gld); | |
| 77 | void add_pending_io(struct trace *trace, struct graph_line_data *gld); | |
| 78 | int next_record(struct trace *trace); | |
| 79 | void first_record(struct trace *trace); | |
| 80 | #endif |