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 right after the metric set. For example, tile_based_interface_tile_metrics=all:input_throughputs:2 will profile
all the channels numbered 2 which are used in all the input PLIOs across the AI
Engine interface.
Table 1. input_throughputs
| Metric Name |
Description |
| Stalled Time/% |
The time spent in stalled state (for example,
master is ready, slave is stalled). |
| Transfer Time/% |
The time spent transferring data. |
| Idle Time/% |
The time spent in idle state (for example,
master is idle). |
| Throughput (MB/s) |
Throughput used by master/slave
(MB/s). |
Table 2. output_throughputs
| Metric Name |
Description |
| Stalled Time/% |
The time spent in stalled state (for example,
master is ready, slave is stalled). |
| Transfer Time/% |
The time spent in transferring data. |
| Idle Time/% |
The time spent in idle state (for example,
master is idle). |
| Throughput (MB/s) |
Throughput used by master/slave
(MB/s). |
Table 3. input_stalls for AI Engine
| Metric Name |
Description |
| DMA MM2S Channel 0 Stall Time/% |
DMA MM2S Channel 0 Stall Time/% |
| DMA MM2S Channel 0 Idle Time/% |
DMA MM2S Channel 0 Idle Time/% |
Table 4. output_stalls for AI Engine
| Metric Name |
Description |
| DMA S2MM Channel 0 Stall Time/% |
DMA S2MM Channel 0 Stall Time/% |
| DMA S2MM Channel 0 Idle Time/% |
DMA S2MM Channel 0 Idle Time/% |
Table 5. input_stalls for AI Engine-ML
| Metric Name |
Description |
| DMA MM2S Channel 0 Stream Backpressure
Time/% |
DMA MM2S Channel 0 Stream Backpressure
Time/% |
| DMA MM2S Channel 1 Stream Backpressure
Time/% |
DMA MM2S Channel 1 Stream Backpressure
Time/% |
| DMA MM2S Channel 0 Memory Starvation
Time/% |
DMA MM2S Channel 0 Memory Starvation
Time/% |
| DMA MM2S Channel 1 Memory Starvation
Time/% |
DMA MM2S Channel 1 Memory Starvation
Time/% |
Table 6. output_stalls for AI Engine-ML
| Metric Name |
Description |
| DMA S2MM Channel 0 Memory Backpressure
Time/% |
DMA S2MM Channel 0 Memory Backpressure
Time/% |
| DMA S2MM Channel 1 Memory Backpressure
Time/% |
DMA S2MM Channel 1 Memory Backpressure
Time/% |
| DMA S2MM Channel 0 Lock Stall Time/% |
DMA S2MM Channel 0 Lock Stall Time/% |
| DMA S2MM Channel 1 Lock Stall Time/% |
DMA S2MM Channel 1 Lock Stall Time/% |
Table 7. packets
| Metric Name |
Description |
| TLAST event count on port 0 |
Reports the number of input packets |
| TLAST event count on port 1 |
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).