#ifndef FIO_DISKUTIL_H
#define FIO_DISKUTIL_H
+#include "json.h"
+#define FIO_DU_NAME_SZ 64
+
+#include "lib/output_buffer.h"
+#include "helper_thread.h"
+
+struct disk_util_stats {
+ uint64_t ios[2];
+ uint64_t merges[2];
+ uint64_t sectors[2];
+ uint64_t ticks[2];
+ uint64_t io_ticks;
+ uint64_t time_in_queue;
+ uint64_t msec;
+};
/*
* Disk utils as read in /sys/block/<dev>/stat
*/
struct disk_util_stat {
- unsigned ios[2];
- unsigned merges[2];
- unsigned long long sectors[2];
- unsigned ticks[2];
- unsigned io_ticks;
- unsigned time_in_queue;
+ uint8_t name[FIO_DU_NAME_SZ];
+ struct disk_util_stats s;
+};
+
+struct disk_util_agg {
+ uint64_t ios[2];
+ uint64_t merges[2];
+ uint64_t sectors[2];
+ uint64_t ticks[2];
+ uint64_t io_ticks;
+ uint64_t time_in_queue;
+ uint32_t slavecount;
+ uint32_t pad;
+ fio_fp64_t max_util;
};
/*
*/
struct flist_head slavelist;
- char *name;
char *sysfs_root;
- char path[256];
+ char path[PATH_MAX];
int major, minor;
struct disk_util_stat dus;
struct disk_util_stat last_dus;
+ struct disk_util_agg agg;
+
/* For software raids, this entry maintains pointers to the
* entries for the slave devices. The disk_util entries for
* the slaves devices should primarily be maintained through
*/
struct flist_head slaves;
- unsigned long msec;
struct timeval time;
struct fio_mutex *lock;
unsigned long users;
};
-static inline void disk_util_inc(struct disk_util *du)
+static inline void disk_util_mod(struct disk_util *du, int val)
{
if (du) {
+ struct flist_head *n;
+
fio_mutex_down(du->lock);
- du->users++;
+ du->users += val;
+
+ flist_for_each(n, &du->slavelist) {
+ struct disk_util *slave;
+
+ slave = flist_entry(n, struct disk_util, slavelist);
+ slave->users += val;
+ }
fio_mutex_up(du->lock);
}
}
+static inline void disk_util_inc(struct disk_util *du)
+{
+ disk_util_mod(du, 1);
+}
static inline void disk_util_dec(struct disk_util *du)
{
- if (du) {
- fio_mutex_down(du->lock);
- du->users--;
- fio_mutex_up(du->lock);
- }
+ disk_util_mod(du, -1);
}
#define DISK_UTIL_MSEC (250)
+extern struct flist_head disk_list;
+
/*
* disk util stuff
*/
#ifdef FIO_HAVE_DISK_UTIL
-extern void show_disk_util(void);
+extern void print_disk_util(struct disk_util_stat *, struct disk_util_agg *, int terse, struct buf_output *);
+extern void show_disk_util(int terse, struct json_object *parent, struct buf_output *);
+extern void json_array_add_disk_util(struct disk_util_stat *dus,
+ struct disk_util_agg *agg, struct json_array *parent);
extern void init_disk_util(struct thread_data *);
-extern void update_io_ticks(void);
+extern int update_io_ticks(void);
+extern void setup_disk_util(void);
+extern void disk_util_prune_entries(void);
#else
-#define show_disk_util()
+/* keep this as a function to avoid a warning in handle_du() */
+static inline void print_disk_util(struct disk_util_stat *du,
+ struct disk_util_agg *agg, int terse,
+ struct buf_output *out)
+{
+}
+#define show_disk_util(terse, parent, out)
+#define disk_util_prune_entries()
#define init_disk_util(td)
-#define update_io_ticks()
+#define setup_disk_util()
+#define json_array_add_disk_util(dus, agg, parent)
+
+static inline int update_io_ticks(void)
+{
+ return helper_should_exit();
+}
#endif
#endif