https://bugs.freedesktop.org/show_bug.cgi?id=110481
Bug ID: 110481 Summary: performance hot issues in amdgpu_cs_ib_vm_chunk Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: baopeng88_com@163.com
We have encountered performance hot issues in vce module. Cpu occupancy rate has been in the alloc_vmap_area function. We found that calling the alloc_vmap_area function mainly occurs in the amdgpu_cs_ib_vm_chunk function. So we removed the main loop judgment logic of amdgpu_cs_ib_vm_chunk. as follows . - if (p->ring->funcs->parse_cs || p->ring->funcs->patch_cs_in_place) { + if (0) If we don't delete, vce will be very slow.
Is this the fundamental way to solve the problem? Or there are other ways to solve the problem？
3q very much.