TDA4VM: Running time of the program on the cpu only is a lot slower than expected

Emanuil Antonov

Part Number: TDA4VM

Hello,

Program that i run on arm processor with 2.8GH execute in 11ms on one thread on TDA4VM(2 Ghz according to documentation) same program run for 72ms on 1 thread and 52ms on 2 threads. How can i check current processor frequency?

Best regards,

Emanuil

over 2 years ago

0 Keerthy J over 2 years ago

TI__Guru**** 162490 points

Hi Emanuil,

Emanuil Antonov said:
How can i check current processor frequency?

By default the TDA4VM boots at 2.0 GHz.

k3conf dump clock 202
|--------------------------------------------------------------------------------|
| VERSION INFO |
|--------------------------------------------------------------------------------|
| K3CONF | (version v0.1-64-g48cb8e8 built Fri Dec 16 11:42:13 UTC 2022) |
| SoC | J7200 SR1.0 |
| SYSFW | ABI: 3.1 (firmware version 0x0008 '8.6.3--v08.06.03 (Chill Capybar)') |
|--------------------------------------------------------------------------------|

|-------------------------------------------------------------------------------------------|
| Device ID | Clock ID | Clock Name | Status | Clock Frequency |
|-------------------------------------------------------------------------------------------|
| 202 | 2 | DEV_A72SS0_CORE0_0_ARM_CLK_CLK | CLK_STATE_READY | 2000000000 |
|-------------------------------------------------------------------------------------------|

root@j7200-evm:~#

The k3conf tool is a reliable way to check the frequency of A72.

- Keerthy