#define KSTAT_TYPE_INTR 2 /* interrupt stats; ks_ndata == 1 */
#define KSTAT_TYPE_IO 3 /* I/O stats; ks_ndata == 1 */
#define KSTAT_TYPE_TIMER 4 /* event timer; ks_ndata >= 1 */
-#define KSTAT_NUM_TYPES 5
+#define KSTAT_TYPE_TXG 5 /* txg sync; ks_ndata >= 1 */
+#define KSTAT_NUM_TYPES 6
#define KSTAT_DATA_CHAR 0
#define KSTAT_DATA_INT32 1
hrtime_t stop_time; /* previous event stop time */
} kstat_timer_t;
+typedef enum kstat_txg_state {
+ TXG_STATE_OPEN = 1,
+ TXG_STATE_QUIESCING = 2,
+ TXG_STATE_SYNCING = 3,
+ TXG_STATE_COMMITTED = 4,
+} kstat_txg_state_t;
+
+typedef struct kstat_txg {
+ u_longlong_t txg; /* txg id */
+ kstat_txg_state_t state; /* txg state */
+ hrtime_t birth; /* birth time stamp */
+ u_longlong_t nread; /* number of bytes read */
+ u_longlong_t nwritten; /* number of bytes written */
+ uint_t reads; /* number of read operations */
+ uint_t writes; /* number of write operations */
+ hrtime_t open_time; /* open time */
+ hrtime_t quiesce_time;/* quiesce time */
+ hrtime_t sync_time; /* sync time */
+} kstat_txg_t;
+
int spl_kstat_init(void);
void spl_kstat_fini(void);
"name", "events", "elapsed",
"min", "max", "start", "stop");
break;
+ case KSTAT_TYPE_TXG:
+ seq_printf(f,
+ "%-8s %-5s %-13s %-12s %-12s %-8s %-8s "
+ "%-12s %-12s %-12s\n",
+ "txg", "state", "birth",
+ "nread", "nwritten", "reads", "writes",
+ "otime", "qtime", "stime");
+ break;
default:
PANIC("Undefined kstat type %d\n", ksp->ks_type);
}
return 0;
}
+static int
+kstat_seq_show_txg(struct seq_file *f, kstat_txg_t *ktp)
+{
+ char state;
+
+ switch (ktp->state) {
+ case TXG_STATE_OPEN: state = 'O'; break;
+ case TXG_STATE_QUIESCING: state = 'Q'; break;
+ case TXG_STATE_SYNCING: state = 'S'; break;
+ case TXG_STATE_COMMITTED: state = 'C'; break;
+ default: state = '?'; break;
+ }
+
+ seq_printf(f,
+ "%-8llu %-5c %-13llu %-12llu %-12llu %-8u %-8u "
+ "%12lld %12lld %12lld\n", ktp->txg, state, ktp->birth,
+ ktp->nread, ktp->nwritten, ktp->reads, ktp->writes,
+ ktp->open_time, ktp->quiesce_time, ktp->sync_time);
+ return 0;
+}
+
static int
kstat_seq_show(struct seq_file *f, void *p)
{
case KSTAT_TYPE_TIMER:
rc = kstat_seq_show_timer(f, (kstat_timer_t *)p);
break;
+ case KSTAT_TYPE_TXG:
+ rc = kstat_seq_show_txg(f, (kstat_txg_t *)p);
+ break;
default:
PANIC("Undefined kstat type %d\n", ksp->ks_type);
}
case KSTAT_TYPE_TIMER:
rc = ksp->ks_data + n * sizeof(kstat_timer_t);
break;
+ case KSTAT_TYPE_TXG:
+ rc = ksp->ks_data + n * sizeof(kstat_txg_t);
+ break;
default:
PANIC("Undefined kstat type %d\n", ksp->ks_type);
}
ksp->ks_ndata = ks_ndata;
ksp->ks_data_size = ks_ndata * sizeof(kstat_timer_t);
break;
+ case KSTAT_TYPE_TXG:
+ ksp->ks_ndata = ks_ndata;
+ ksp->ks_data_size = ks_ndata * sizeof(kstat_timer_t);
+ break;
default:
PANIC("Undefined kstat type %d\n", ksp->ks_type);
}