Re: 回复: [PATCH] drm/amdgpu: Put drm_dev_enter/exit outside hot codepath

I will add the enter/exit there too. I will do the plug/unplug test to verfiy it. ___ 发件人: Grodzovsky, Andrey 发送时间: 2021年9月15日 11:02 收件人: Pan, Xinhui; amd-gfx@lists.freedesktop.org 抄送: Deucher, Alexander; Koenig, Christian 主题: Re: [PATCH] drm/amdgpu: Put drm

Re: [PATCH] drm/amdgpu: Put drm_dev_enter/exit outside hot codepath

On 2021-09-14 9:42 p.m., xinhui pan wrote: We hit soft hang while doing memory pressure test on one numa system. After a qucik look, this is because kfd invalid/valid userptr memory frequently with process_info lock hold. perf top says below, 75.81% [kernel] [k] __srcu_read_unlock Do

[PATCH] drm/amdgpu: Put drm_dev_enter/exit outside hot codepath

We hit soft hang while doing memory pressure test on one numa system. After a qucik look, this is because kfd invalid/valid userptr memory frequently with process_info lock hold. perf top says below, 75.81% [kernel] [k] __srcu_read_unlock 6.19% [amdgpu] [k] amdgpu_gmc_set_pte_pde 3