JetPack7.2 r39.2 T5000 GPU 功耗跑不满

[SUMROY]

我们在同一块主板上适配了 r38.2 和 r39.2 :

r38.2 GPU 功耗可以到 60W

r39.2 GPU 功耗只能到 40W

压测指令都是：
nvpmodel -m 0
jetson_clock
stress-ng --cpu 14 --cpu-method fft &
./gpu_burn -tc 1000000

请问这个是什么原因？有排查思路吗？

[SUMROY]

另外问一下 r39.2 多出来的 Sensor 1 是什么？

[whitesscott]

Sensor 1 and Sensor 2 are not descriptive thermal-zone names. They are jtop/libjetsonpower generic labels for hwmon temperature inputs that do not expose a useful temp*_label.

Composite  -> NVMe composite temperature
Sensor 1   -> NVMe internal sensor 1
Sensor 2   -> NVMe internal sensor 2

cpu        -> /sys/class/thermal/thermal_zone*/temp where type=cpu-thermal
gpu        -> /sys/class/thermal/thermal_zone*/temp where type=gpu-thermal
soc012     -> /sys/class/thermal/thermal_zone*/temp where type=soc012-thermal
soc345     -> /sys/class/thermal/thermal_zone*/temp where type=soc345-thermal
tj         -> /sys/class/thermal/thermal_zone*/temp where type=tj-thermal


for h in /sys/class/hwmon/hwmon*; do
    [ "$(cat "$h/name" 2>/dev/null)" = "nvme" ] || continue

    for f in "$h"/temp*_input; do
        [ -e "$f" ] || continue
        b="${f%_input}"
        label="$(cat "${b}_label" 2>/dev/null || echo "$(basename "$f")")"
        printf "%-12s %s  " "$label" "$f"
        awk '{printf "%.2f C\n", $1/1000}' "$f"
    done
done

Composite    /sys/class/hwmon/hwmon0/temp1_input  43.85 C
Sensor 1     /sys/class/hwmon/hwmon0/temp2_input  43.85 C
Sensor 2     /sys/class/hwmon/hwmon0/temp3_input  46.85 C

[SUMROY]

请问这个问题有排查思路吗？是否是 BPMP 固件更新导致的？

[AastaLLL]

Hi,

Could you share the gpu_burn test so we can check it internally?
Thanks

[SUMROY]

GitHub - wilicc/gpu-burn: Multi-GPU CUDA stress test · GitHub

从 github 下载编译

[AastaLLL]

Hi,

Thanks for the update.
We will test this internally and provide more information to you later.

Thanks.

[AastaLLL]

Hi,

Test the stress commands below with 120W mode (according to your jtop image).

$ ./gpu_burn -tc 1000000
$ stress-ng --cpu 14 --cpu-method fft

We can reach more than 120W without issue.
Could you re-try the test again?

Thanks

[whitesscott]

@AastaLLL

Upgrade your jtop

curl -LsSf https://raw.githubusercontent.com/rbonghi/jetson_stats/master/scripts/upgrade-jtop.sh | bash

[AastaLLL]

Hi,

Is this issue related to jtop?

Thanks.