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radv: adjust the CmdUpdateBuffer threshold for optimal performance

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According to my benchmark results, it appears that we should
reduce the threshold to 1024.

BEFORE:
1 KB: 68.656000 ms
2 KB: 118.368000 ms

AFTER:
1 KB: 31.760000 ms
2 KB: 29.840000 ms

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2018-09-26 11:10:58 +02:00
parent 5d6a560a29
commit 621e70dd40
2 changed files with 3 additions and 1 deletions
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2
src/amd/vulkan/radv_meta_buffer.c
View file

@ -513,7 +513,7 @@ void radv_CmdUpdateBuffer(
if (!dataSize)
return;
if (dataSize < RADV_BUFFER_OPS_CS_THRESHOLD) {
if (dataSize < RADV_BUFFER_UPDATE_THRESHOLD) {
si_emit_cache_flush(cmd_buffer);
radv_cs_add_buffer(cmd_buffer->device->ws, cmd_buffer->cs, dst_buffer->bo);

2
src/amd/vulkan/radv_private.h
View file

@ -108,6 +108,8 @@ typedef uint32_t xcb_window_t;
*/
#define RADV_BUFFER_OPS_CS_THRESHOLD 4096
#define RADV_BUFFER_UPDATE_THRESHOLD 1024
enum radv_mem_heap {
RADV_MEM_HEAP_VRAM,
RADV_MEM_HEAP_VRAM_CPU_ACCESS,