The following tables list the pre-defined metric set configurations available
for interface tiles. In the xrt.ini file all of
these metric names must be in lower case and assigned to the metric selector tile_based_interface_tile_metrics or graph_based_interface_tile_metrics.
All these metric sets target a single channel in each PLIO, which is
optionally specified after the metric set. For example, tile_based_interface_tile_metrics=all:input_throughputs:2 profiles all
the channels numbered 2 which are used in all the input PLIOs across the AI Engine interface. If not specified in
the parameter list, the selected channel is the latest in the list of used channels
generated by the aiecompiler.
Table 1. input_throughputs (mm2s_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 (s2mm_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 (mm2s_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 (s2mm_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 (mm2s_stalls) for AI Engine-ML
| 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/% |
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 (s2mm_stalls) for AI Engine-ML
| 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/% |
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).
Latency
Latency between the input and output ports is measurable. This is not a
metric that can be used as the other ones. This is a specific command issued in the
XRT or XSDB flow.