The following tables list the pre-defined metric set configurations available
for interface tiles. In the xrt.ini file all of
these metric names should be in lower case and assigned to the metric selector
tile_based_interface_tile_metrics.
All these metric sets are targeted to a single channel in each PLIO which is
specified just after the metric set. For example, tile_based_interface_tile_metrics=all:input_throughputs:2 will profile
all the channels number 2 which are used in all the input PLIOs.
| Metric Name | Event ID | Description |
|---|---|---|
| PLIO channel transfer time | 75 | Time the PLIO channel spent transferring data. |
| PLIO channel stalls time | 76 | Time the PLIO channel spent in stall state: consumer (AI Engine array) is unable to accept new data, producer (PL) is willing to send new data. |
| PLIO channel idle time | Derived | Time the PLIO channel spent in idle state: consumer (AI Engine array) is ready, producer (PL) is idle. |
| PLIO channel throughput | Derived | Throughput of the PLIO. |
These values are referring to a specific input channel of the PLIOs (PL to AI Engine) among the 8 available (0 to 7).
| Metric Name | Event ID | Description |
|---|---|---|
| PLIO channel transfer time | 75 | Time the PLIO channel spent transferring data. |
| PLIO channel stalls time | 76 | Time the PLIO channel spent in stall state: consumer (PL) is unable to accept new data, producer (AI Engine) is willing to send new data. |
| PLIO channel idle time | Derived | Time the PLIO channel spent in idle state: consumer (PL) is ready, producer (AI Engine) is idle. |
| PLIO channel throughput | Derived | Throughput of the PLIO. |
These values are referring to a specific output channel of the PLIOs (AI Engine to PL) among the 6 available (0 to 5).
| Metric Name | Event ID | Description |
|---|---|---|
| TLAST event count on port 0 | 77 | Reports the number of input packets |
| TLAST event count on port 1 | 81 | Reports the number of output packets |
These values are referring to a specific input channel of all the PLIOs (PL to AI Engine) among the 8 available (0 to 7).