Spinlock usage histograms (frequency graphs)
(INSTANCEID, SPINLOCKNAME, CATEGORY)
| Name | Data Type | Description |
|---|---|---|
| INSTANCEID | long | Instance ID; 0 = non-CE |
| SPINLOCKNAME | string(80) | Spinlock name |
| CATEGORY | string(12) | Histogram category (Contention, Grabs, Spins, Waits) |
| A | double | Start value of bucket, as a fraction 0.0 to 1.0 (where 1.0 = max spinlock value) |
| B | double | End value of bucket, as a fraction 0.0 to 1.0 (where 1.0 = max spinlock value) |
| BUCKET | string(68) | Description of bucket range |
| FREQ | long | Frequency count |
| Attributes: | None |
|---|---|
| Minimum database version: | 12.5.0.3 |