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# Copyright (C) 2014-2016 Intel Corporation. All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
# Python source
KNOBS = [
['SINGLE_THREADED', {
'type' : 'bool',
'default' : 'false',
'desc' : ['If enabled will perform all rendering on the API thread.',
'This is useful mainly for debugging purposes.'],
'category' : 'debug',
}],
['HYPERTHREADED_FE', {
'type' : 'bool',
'default' : 'false',
'desc' : ['EXPERIMENTAL!!',
'If enabled will attempt to use secondary threads per core to perform',
'front-end (VS/GS) work.',
'',
'Note: Setting this will cause KNOB_MAX_THREADS_PER_CORE to be ignored.'],
'category' : 'perf',
'advanced' : 'true',
}],
['DUMP_SHADER_IR', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Dumps shader LLVM IR at various stages of jit compilation.'],
'category' : 'debug',
}],
['USE_GENERIC_STORETILE', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Always use generic function for performing StoreTile.',
'Will be slightly slower than using optimized (jitted) path'],
'category' : 'debug',
}],
['FAST_CLEAR', {
'type' : 'bool',
'default' : 'true',
'desc' : ['Replace 3D primitive execute with a SWRClearRT operation and',
'defer clear execution to first backend op on hottile, or hottile store'],
'category' : 'perf',
}],
['MAX_NUMA_NODES', {
'type' : 'uint32_t',
'default' : '0',
'desc' : ['Maximum # of NUMA-nodes per system used for worker threads',
' 0 == ALL NUMA-nodes in the system',
' N == Use at most N NUMA-nodes for rendering'],
'category' : 'perf',
}],
['MAX_CORES_PER_NUMA_NODE', {
'type' : 'uint32_t',
'default' : '0',
'desc' : ['Maximum # of cores per NUMA-node used for worker threads.',
' 0 == ALL non-API thread cores per NUMA-node',
' N == Use at most N cores per NUMA-node'],
'category' : 'perf',
}],
['MAX_THREADS_PER_CORE', {
'type' : 'uint32_t',
'default' : '1',
'desc' : ['Maximum # of (hyper)threads per physical core used for worker threads.',
' 0 == ALL hyper-threads per core',
' N == Use at most N hyper-threads per physical core'],
'category' : 'perf',
}],
['MAX_WORKER_THREADS', {
'type' : 'uint32_t',
'default' : '0',
'desc' : ['Maximum worker threads to spawn.',
'',
'IMPORTANT: If this is non-zero, no worker threads will be bound to',
'specific HW threads. They will all be "floating" SW threads.',
'In this case, the above 3 KNOBS will be ignored.'],
'category' : 'perf',
}],
['BUCKETS_START_FRAME', {
'type' : 'uint32_t',
'default' : '1200',
'desc' : ['Frame from when to start saving buckets data.',
'',
'NOTE: KNOB_ENABLE_RDTSC must be enabled in core/knobs.h',
'for this to have an effect.'],
'category' : 'perf',
}],
['BUCKETS_END_FRAME', {
'type' : 'uint32_t',
'default' : '1400',
'desc' : ['Frame at which to stop saving buckets data.',
'',
'NOTE: KNOB_ENABLE_RDTSC must be enabled in core/knobs.h',
'for this to have an effect.'],
'category' : 'perf',
}],
['WORKER_SPIN_LOOP_COUNT', {
'type' : 'uint32_t',
'default' : '5000',
'desc' : ['Number of spin-loop iterations worker threads will perform',
'before going to sleep when waiting for work'],
'category' : 'perf',
}],
['MAX_DRAWS_IN_FLIGHT', {
'type' : 'uint32_t',
'default' : '96',
'desc' : ['Maximum number of draws outstanding before API thread blocks.'],
'category' : 'perf',
}],
['MAX_PRIMS_PER_DRAW', {
'type' : 'uint32_t',
'default' : '2040',
'desc' : ['Maximum primitives in a single Draw().',
'Larger primitives are split into smaller Draw calls.',
'Should be a multiple of (3 * vectorWidth).'],
'category' : 'perf',
}],
['MAX_TESS_PRIMS_PER_DRAW', {
'type' : 'uint32_t',
'default' : '16',
'desc' : ['Maximum primitives in a single Draw() with tessellation enabled.',
'Larger primitives are split into smaller Draw calls.',
'Should be a multiple of (vectorWidth).'],
'category' : 'perf',
}],
['BUCKETS_ENABLE_THREADVIZ', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Enable threadviz output.'],
'category' : 'perf',
}],
['TOSS_DRAW', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Disable per-draw/dispatch execution'],
'category' : 'perf',
}],
['TOSS_QUEUE_FE', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at worker FE',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],
['TOSS_FETCH', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at vertex fetch',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],
['TOSS_IA', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at input assembler',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],
['TOSS_VS', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at vertex shader',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],
['TOSS_SETUP_TRIS', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at primitive setup',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],
['TOSS_BIN_TRIS', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at primitive binning',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],
['TOSS_RS', {
'type' : 'bool',
'default' : 'false',
'desc' : ['Stop per-draw execution at rasterizer',
'',
'NOTE: Requires KNOB_ENABLE_TOSS_POINTS to be enabled in core/knobs.h'],
'category' : 'perf',
'advanced' : 'true',
}],]
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