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135 lines
3.0 KiB
135 lines
3.0 KiB
#ifndef FIO_DISKUTIL_H |
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#define FIO_DISKUTIL_H |
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#include "json.h" |
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#define FIO_DU_NAME_SZ 64 |
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#include "lib/output_buffer.h" |
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#include "helper_thread.h" |
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struct disk_util_stats { |
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uint64_t ios[2]; |
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uint64_t merges[2]; |
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uint64_t sectors[2]; |
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uint64_t ticks[2]; |
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uint64_t io_ticks; |
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uint64_t time_in_queue; |
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uint64_t msec; |
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}; |
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/* |
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* Disk utils as read in /sys/block/<dev>/stat |
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*/ |
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struct disk_util_stat { |
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uint8_t name[FIO_DU_NAME_SZ]; |
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struct disk_util_stats s; |
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}; |
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struct disk_util_agg { |
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uint64_t ios[2]; |
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uint64_t merges[2]; |
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uint64_t sectors[2]; |
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uint64_t ticks[2]; |
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uint64_t io_ticks; |
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uint64_t time_in_queue; |
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uint32_t slavecount; |
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uint32_t pad; |
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fio_fp64_t max_util; |
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}; |
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/* |
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* Per-device disk util management |
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*/ |
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struct disk_util { |
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struct flist_head list; |
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/* If this disk is a slave, hook it into the master's |
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* list using this head. |
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*/ |
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struct flist_head slavelist; |
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char *sysfs_root; |
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char path[PATH_MAX]; |
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int major, minor; |
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struct disk_util_stat dus; |
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struct disk_util_stat last_dus; |
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struct disk_util_agg agg; |
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/* For software raids, this entry maintains pointers to the |
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* entries for the slave devices. The disk_util entries for |
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* the slaves devices should primarily be maintained through |
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* the disk_list list, i.e. for memory allocation and |
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* de-allocation, etc. Whereas this list should be used only |
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* for aggregating a software RAID's disk util figures. |
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*/ |
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struct flist_head slaves; |
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struct timeval time; |
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struct fio_mutex *lock; |
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unsigned long users; |
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}; |
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static inline void disk_util_mod(struct disk_util *du, int val) |
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{ |
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if (du) { |
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struct flist_head *n; |
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fio_mutex_down(du->lock); |
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du->users += val; |
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flist_for_each(n, &du->slavelist) { |
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struct disk_util *slave; |
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slave = flist_entry(n, struct disk_util, slavelist); |
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slave->users += val; |
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} |
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fio_mutex_up(du->lock); |
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} |
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} |
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static inline void disk_util_inc(struct disk_util *du) |
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{ |
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disk_util_mod(du, 1); |
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} |
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static inline void disk_util_dec(struct disk_util *du) |
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{ |
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disk_util_mod(du, -1); |
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} |
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#define DISK_UTIL_MSEC (250) |
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extern struct flist_head disk_list; |
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/* |
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* disk util stuff |
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*/ |
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#ifdef FIO_HAVE_DISK_UTIL |
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extern void print_disk_util(struct disk_util_stat *, struct disk_util_agg *, int terse, struct buf_output *); |
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extern void show_disk_util(int terse, struct json_object *parent, struct buf_output *); |
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extern void json_array_add_disk_util(struct disk_util_stat *dus, |
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struct disk_util_agg *agg, struct json_array *parent); |
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extern void init_disk_util(struct thread_data *); |
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extern int update_io_ticks(void); |
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extern void setup_disk_util(void); |
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extern void disk_util_prune_entries(void); |
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#else |
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/* keep this as a function to avoid a warning in handle_du() */ |
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static inline void print_disk_util(struct disk_util_stat *du, |
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struct disk_util_agg *agg, int terse, |
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struct buf_output *out) |
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{ |
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} |
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#define show_disk_util(terse, parent, out) |
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#define disk_util_prune_entries() |
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#define init_disk_util(td) |
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#define setup_disk_util() |
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#define json_array_add_disk_util(dus, agg, parent) |
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static inline int update_io_ticks(void) |
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{ |
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return helper_should_exit(); |
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} |
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#endif |
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#endif
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