Average load constantly way too high with BSP kernel

tkaiser · May 17, 2022, 5:36am

For your info: Average load on VIM4 with Amlogic’s 5.4 kernel is always way too high (above 2.0 when doing exactly nothing). This is not related to CPU utilization (common misunderstanding: on Linux average load is something different).

The responsible processes seem to be vmap_thread and crg_reset_0_thr. Please fix

References:

http://ix.io/3Wvv and http://ix.io/3Wq0 (sbc-bench results that record loadavg and CPU utilization)
Amlogic A311D2 octa-core Arm processor supports up to 16GB RAM - CNX Software (analysis of the phenomenon)

hyphop · May 17, 2022, 6:08am

tnx for tips ! we try to fix it

p2_83 · November 23, 2022, 7:24pm

Hi @hyphop, I notice this is still the case with kernel 5.4.180.
Will you be able to solve this ?

Thanks !

adasauce · January 10, 2023, 1:54pm

Just wanted to provide an update that this phenomenon of vmap_thread and crg_reset_0_thr are still sitting in D state, causing the load average to over at 2 even though there’s little to no load on the system.

Running debian on kernel 5.4.180 built with fenix 1.4