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[参考译文] AM67:TI Apps Launcher 报告的 DDR 带宽利用率是使用最新`k3conf` Tool 报告的&&39 的两倍

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Other Parts Discussed in Thread: AM67, AM62P, AM62L

请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1649182/am67-ti-apps-launcher-reported-ddr-bandwidth-utilization-is-double-of-what-s-reported-using-latest-k3conf-tool

器件型号: AM67
主题中讨论的其他器件: AM62PAM62L

启动默认的 AM67 SDK v11.0 Linux 映像并在空闲模式下运行 TI Apps Launcher GUI 时、“DDR Load“GUI 小工具显示了大约 1100MB/s 的组合 DDR 负载(请参阅屏幕截图)

`、当从源代码 (https://git.ti.com/cgit/k3conf/k3conf/) 构建最新的` k3conf 工具并同时运行该工具时、所显示的带宽大约是其中的一半。 这些工具报告的值之间似乎存在“系数 x2“差异。 为什么这是正确的、哪一个是正确的?

root@am67-sk:~# ./k3conf ddrbw
|-----------------------------------------------------------------------------------------|
| VERSION INFO                                                                            |
|-----------------------------------------------------------------------------------------|
| K3CONF           | (version v0.4-2-geaa148f built Tue May 26 05:55:19 UTC 2026)         |
| SoC              | J722S SR1.0                                                          |
| SoC identifiers  | [0x3323062e] fam: 0x0000000c base: 0x00000460                        |
| DIE-ID           | [0] 0x4B6C0000 [1] 0x00004000 [2] 0x0800fc2d [3] 0x01042d72          |
| SYSFW            | ABI: 4.0 (firmware version 0x000b '11.0.9--v11.00.09+ (Fancy Rat))') |
| DM ABI Info      | 3.0                                                                  |
| DM F/w rev       | 11.0.9                                                               |
| DM Component rev | RM/PM HAL:'v11.00.09' SCI_SERV:'MSDK.11.00.00.05+'                   |
| F/w Capabilities | 0x101: GEN DM-SPLT                                                   |
|-----------------------------------------------------------------------------------------|

|--------------------------------------------------------------------------------------------------|
| DDR instance | Read data (MiB) | Avg Read B/W (MiB/s) | Write data (MiB) | Avg Write B/W (MiB/s) |
|--------------------------------------------------------------------------------------------------|
| DDR0         | 315.484         | 315.456              | 16.725           | 16.723                |
|--------------------------------------------------------------------------------------------------|

|--------------------------------------------------------------------------------------------------|
| DDR instance | Read data (MiB) | Avg Read B/W (MiB/s) | Write data (MiB) | Avg Write B/W (MiB/s) |
|--------------------------------------------------------------------------------------------------|
| DDR0         | 532.164         | 532.117              | 7.196            | 7.195                 |
|--------------------------------------------------------------------------------------------------|

|--------------------------------------------------------------------------------------------------|
| DDR instance | Read data (MiB) | Avg Read B/W (MiB/s) | Write data (MiB) | Avg Write B/W (MiB/s) |
|--------------------------------------------------------------------------------------------------|
| DDR0         | 530.782         | 530.736              | 6.513            | 6.513                 |
|--------------------------------------------------------------------------------------------------|

|--------------------------------------------------------------------------------------------------|
| DDR instance | Read data (MiB) | Avg Read B/W (MiB/s) | Write data (MiB) | Avg Write B/W (MiB/s) |
|--------------------------------------------------------------------------------------------------|
| DDR0         | 530.825         | 530.775              | 10.625           | 10.624                |
|--------------------------------------------------------------------------------------------------|

|--------------------------------------------------------------------------------------------------|
| DDR instance | Read data (MiB) | Avg Read B/W (MiB/s) | Write data (MiB) | Avg Write B/W (MiB/s) |
|--------------------------------------------------------------------------------------------------|
| DDR0         | 532.901         | 532.843              | 10.768           | 10.767                |
|--------------------------------------------------------------------------------------------------|

|--------------------------------------------------------------------------------------------------|
| DDR instance | Read data (MiB) | Avg Read B/W (MiB/s) | Write data (MiB) | Avg Write B/W (MiB/s) |
|--------------------------------------------------------------------------------------------------|
| DDR0         | 529.692         | 529.645              | 5.634            | 5.634                 |
|--------------------------------------------------------------------------------------------------|

^C
root@am67-sk:~# 

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