The accelerator bandwidth and concurrency data does not contain summary information. The timeline information is displayed at the Acc PMU layer in the msprof_*.json file.

Applicable Products

Product	Supported
Ascend 950PR/Ascend 950DT	x
Atlas A3 training products/Atlas A3 inference products	√
Atlas A2 training products/Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	x
Atlas training products	x

Data at the Acc PMU Layer in msprof_*.json

The following figure shows data at the Acc PMU layer in the msprof_*.json file.

Figure 1 Acc PMU layer
Click to enlarge

**Table 1** Field description
Field	Description
read_bandwidth	Read bandwidth of the DVPP and DSA accelerators.
read_ost	Concurrent read operations of the DVPP and DSA accelerators.
write_bandwidth	Write bandwidth of the DVPP and DSA accelerators.
write_ost	Concurrent write operations of the DVPP and DSA accelerators.

Acc PMU (Accelerator Bandwidth and Concurrency Information)

Applicable Products

Data at the Acc PMU Layer in msprof_*.json