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authorEric Anholt <[email protected]>2013-06-18 13:52:03 -0700
committerEric Anholt <[email protected]>2013-11-07 10:20:33 -0800
commit185b5a54c94ce11487146042c8eec24909187ed6 (patch)
tree0b2cdf65e9527f5d8772a8616cc96e4ea3bbd42b /src/gallium/drivers/llvmpipe/lp_context.h
parentfd03dd6ddd96afe782d8686fcba437d23c878da1 (diff)
i965: Avoid flushing the batch for every blorp op.
This brings over the batch-wrap-prevention and aperture space checking code from the normal brw_draw.c path, so that we don't need to flush the batch every time. There's a risk here if the intel_emit_post_sync_nonzero_flush() call isn't high enough up in the state emit sequences -- before, we implicitly had one at the batch flush before any state was emitted, so Mesa's workaround emits didn't really matter. Since the SNB fixes by Ken, I didn't see any regressions after 3 piglit runs. Improves cairo-gl performance by 13.7733% +/- 1.74876% (n=30/32) Improves minecraft apitrace performance by 1.03183% +/- 0.482297% (n=90). Reduces low-resolution GLB 2.7 performance by 1.17553% +/- 0.432263% (n=88) Reduces Lightsmark performance by 3.70246% +/- 0.322432% (n=126) No statistically significant performance difference on unigine tropics (n=10) No statistically significant performance difference on openarena (n=755) The two apps that are hurt happen to include stalls on busy buffer objects, so I think this is an effect of missing out on an opportune flush. Reviewed-by: Kenneth Graunke <[email protected]> Reviewed-by: Paul Berry <[email protected]>
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_context.h')
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