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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - performance hot issues in amdgpu_cs_ib_vm_chunk"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110481">110481</a>
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<th>Summary</th>
<td>performance hot issues in amdgpu_cs_ib_vm_chunk
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>DRM/AMDgpu
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
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<th>Reporter</th>
<td>baopeng88_com@163.com
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<p>
<div>
<pre>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.</pre>
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