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import os
import shutil
import glob
import subprocess
import argparse
import sys
import prettytable
import json
### Setup ###
def clear_mkdir(dir):
if os.path.exists(dir):
shutil.rmtree(dir)
os.makedirs(dir, exist_ok=True)
clear_mkdir('modules')
clear_mkdir('targets')
clear_mkdir('targets/generated')
target_choices = [
'spirv', # SPIRV directly
'spirv-glsl', # SPIRV through synthesized GLSL
'dxil', # DXIL with HLSL and DXC
'dxil-embedded' # DXIL with precompiled modules
]
parser = argparse.ArgumentParser()
parser.add_argument('--target', type=str, default='spirv', choices=target_choices)
parser.add_argument('--samples', type=int, default=1)
parser.add_argument('--output', type=str, default='benchmarks.json')
args = parser.parse_args(sys.argv[1:])
slangc = '..\\..\\build\\Release\\bin\\slangc.exe'
target = args.target
samples = args.samples
if target == 'spirv':
target = 'spirv -emit-spirv-directly'
target_ext = 'spirv'
embed = False
elif target == 'spirv-glsl':
target = 'spirv -emit-spirv-via-glsl'
target_ext = 'spirv'
embed = False
elif target == 'dxil-embedded':
target_ext = 'dxil'
embed = True
elif target == 'dxil':
target_ext = 'dxil'
embed = False
print(f'slangc: {slangc}')
print(f'target: {target}')
print(f'samples: {samples}\n')
### Utility ###
def parse(results):
results = results.split('\n')
results = [ r for r in results if r.startswith('[*]') ]
results = [ r.split() for r in results ]
profile = {}
for r in results:
profile[r[1]] = float(r[-1][:-2])
return profile
timings = {}
def run(command, key):
profile = {}
for i in range(samples):
try:
results = subprocess.check_output(command, stderr=subprocess.STDOUT, shell=True).decode('utf-8')
except subprocess.CalledProcessError as exc:
print(f"[Error] Failed to run command: {command}")
print(exc.output.decode('utf-8'))
return # Return without adding to timings
p = parse(results)
if len(profile) == 0:
profile = p
else:
for k, v in p.items():
profile.setdefault(k, 0)
profile[k] += v
# Only add to timings if we have data
if profile:
for k in profile:
profile[k] /= samples
timings[key] = profile
else:
print(f"[Warning] No timing data collected for {key}")
def compile_cmd(file, output, stage=None, entry=None, emit=False):
cmd = f'{slangc} -report-perf-benchmark {file}'
if stage:
cmd += f' -stage {stage}'
if entry:
cmd += f' -entry {entry}'
else:
cmd += f' -entry {stage}'
if emit:
cmd += f' -target {target_ext}'
output += '.' + target_ext
if target == 'dxil-embedded':
cmd += ' -profile lib_6_6'
elif embed:
cmd += ' -embed-dxil'
cmd += f' -o {output}'
return cmd
### Monolithic compilation ###
hit = 'hit.slang'
cmd = compile_cmd(hit, f'targets/dxr-ch-mono', stage='closesthit', entry='MdlRadianceClosestHitProgram', emit=True)
run(cmd, f'full/{target_ext}/mono/closesthit')
print(f'[I] compiled shadow (monolithic)')
cmd = compile_cmd(hit, f'targets/dxr-ah-mono', stage='anyhit', entry='MdlRadianceAnyHitProgram', emit=True)
run(cmd, f'full/{target_ext}/mono/anyhit')
print(f'[I] compiled shadow (monolithic)')
cmd = compile_cmd(hit, f'targets/dxr-sh-mono', stage='anyhit', entry='MdlShadowAnyHitProgram', emit=True)
run(cmd, f'full/{target_ext}/mono/shadow')
print(f'[I] compiled shadow (monolithic)')
### Module precompilation ###
modules = []
for file in glob.glob(f'*.slang'):
if not file.endswith('hit.slang'):
basename = os.path.basename(file)
run(compile_cmd(file, f'modules/{basename}-module'), 'module/' + file)
print(f'[I] compiled {file}.')
### Module whole compilation ###
cmd = compile_cmd(hit, f'targets/dxr-ch-modules', stage='closesthit', entry='MdlRadianceClosestHitProgram', emit=True)
run(cmd, f'full/{target_ext}/module/closesthit')
print(f'[I] compiled closesthit (module)')
cmd = compile_cmd(hit, f'targets/dxr-ah-modules', stage='anyhit', entry='MdlRadianceAnyHitProgram', emit=True)
run(cmd, f'full/{target_ext}/module/anyhit')
print(f'[I] compiled anyhit (module)')
cmd = compile_cmd(hit, f'targets/dxr-sh-modules', stage='anyhit', entry='MdlShadowAnyHitProgram', emit=True)
run(cmd, f'full/{target_ext}/module/shadow')
print(f'[I] compiled shadow (module)')
# Module precompilation time
precompilation_time = 0
for k in timings:
if k.startswith('module'):
precompilation_time += timings[k]['compileInner']
timings[f'full/{target_ext}/precompilation'] = { 'compileInner': precompilation_time }
# Output to benchmark file
json_data = []
for k, v in timings.items():
if not k.startswith('full'):
continue
name = k.split('/')[1:]
name = ' : '.join(reversed(name))
data = {
'name': name,
'value': v['compileInner'],
'unit': 'milliseconds'
}
json_data.append(data)
# TODO: append target to benchmark file name
with open(args.output, 'w') as file:
json.dump(json_data, file, indent=4)
# Generate readable Markdown as well
print(4 * '\n')
print('# Slang MDL benchmark results\n')
print('## Module precompilation time\n')
precomp_key = f'full/{target_ext}/precompilation'
if precomp_key in timings:
print(f'Total: **{timings[precomp_key]["compileInner"]} ms**\n')
else:
print("No precompilation data available\n")
print('## Module compilation for entry points\n')
entries = [ 'Closest Hit', 'Any Hit', 'Shadow' ]
prefixes = [ 'closesthit', 'anyhit', 'shadow' ]
table = prettytable.PrettyTable()
table.set_style(prettytable.MARKDOWN)
table.field_names = [ 'Entry', 'Total' ]
total = 0
for entry, prefix in zip(entries, prefixes):
row = [ entry ]
key = f'full/{target_ext}/module/{prefix}'
if key in timings:
db = timings[key]
spCompile = db.get('compileInner', 0)
row.append(f'{spCompile:.3f}ms')
table.add_row(row)
total += spCompile
else:
row.append('Failed')
table.add_row(row)
print(f"[Warning] Compilation failed for module/{prefix}")
print(f'Total: **{total} ms**\n')
print(table, end='\n\n')
print('## Monolithic compilation for entry points\n')
table = prettytable.PrettyTable()
table.set_style(prettytable.MARKDOWN)
table.field_names = [ 'Entry', 'Total' ]
total = 0
for entry, prefix in zip(entries, prefixes):
row = [ entry ]
key = f'full/{target_ext}/mono/{prefix}'
if key in timings:
db = timings[key]
spCompile = db.get('compileInner', 0)
row.append(f'{spCompile:.3f}ms')
table.add_row(row)
total += spCompile
else:
row.append('Failed')
table.add_row(row)
print(f"[Warning] Compilation failed for mono/{prefix}")
print(f'Total: **{total} ms**\n')
print(table, end='\n\n')
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