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#!/usr/bin/env python3
#
# Copyright 2015 Ettus Research LLC
# Copyright 2018 Ettus Research, a National Instruments Company
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
"""
Wrap the converter_benchmark tool and produce prettier results.
"""
import sys
import argparse
import csv
import subprocess
INTRO_SETUP = {
'n_samples': {
'title': 'Samples per iteration',
},
'iterations': {
'title': 'Number of iterations'
},
}
TABLE_SETUP = {
'prio': {
'title': 'Priority',
},
'duration_ms': {
'title': 'Total Duration (ms)',
},
'avg_duration_ms': {
'title': 'Avg. Duration (ms)',
},
}
def run_benchmark(args):
""" Run the tool with the given arguments, return the section in the {{{ }}} brackets """
call_args = ['./converter_benchmark',]
for k, v in args.__dict__.items():
k = k.replace('_', '-')
if v is None:
continue
if k in ('debug-converter', 'hex'):
if v:
call_args.append('--{0}'.format(k))
continue
call_args.append('--{0}'.format(k))
call_args.append(str(v))
try:
output = subprocess.check_output(call_args).decode('utf-8')
except subprocess.CalledProcessError as ex:
print("Error running converter_benchmark:", ex.output.decode())
sys.exit(ex.returncode)
header_out, csv_output = output.split('{{{', 1)
csv_output = csv_output.split('}}}', 1)
assert len(csv_output) == 2 and csv_output[1].strip() == ''
return header_out, csv_output[0]
def print_stats_table(_, csv_output):
"""
Print stats.
"""
reader = csv.reader(csv_output.strip().split('\n'), delimiter=',')
title_row = next(reader)
row_widths = [0,] * len(TABLE_SETUP)
for idx, row in enumerate(reader):
if idx == 0:
# Print intro:
for k, v in INTRO_SETUP.items():
print("{title}: {value}".format(
title=v['title'],
value=row[title_row.index(k)],
))
print("")
# Print table header
for idx, item in enumerate(TABLE_SETUP):
print(" {title} ".format(title=TABLE_SETUP[item]['title']), end='')
row_widths[idx] = len(TABLE_SETUP[item]['title'])
if idx < len(TABLE_SETUP) - 1:
print("|", end='')
print("")
for idx, item in enumerate(TABLE_SETUP):
print("-" * (row_widths[idx] + 2), end='')
if idx < len(TABLE_SETUP) - 1:
print("+", end='')
print("")
# Print actual row data
for idx, item in enumerate(TABLE_SETUP):
format_str = " {{item:>{n}}} ".format(n=row_widths[idx])
print(format_str.format(item=row[title_row.index(item)]), end='')
if idx < len(TABLE_SETUP) - 1:
print("|", end='')
print("")
def print_debug_table(args, csv_output):
"""
Print debug output.
"""
reader = csv.reader(csv_output.strip().split('\n'), delimiter=';')
print_widths_hex = {
'u8': 2,
'sc16': 8,
'fc32': 16,
's16': 4,
}
if args.hex:
format_str = "{{0[0]:0>{n_in}}} => {{0[1]:0>{n_out}}}".format(
n_in=print_widths_hex[getattr(args, 'in').split('_', 1)[0]],
n_out=print_widths_hex[args.out.split('_', 1)[0]]
)
else:
format_str = "{0[0]}\t=>\t{0[1]}"
for row in reader:
print(format_str.format(row))
def setup_argparse():
""" Configure arg parser. """
parser = argparse.ArgumentParser(
description="UHD Converter Benchmark + Debugging Utility.",
)
parser.add_argument(
"-i", "--in", required=True,
help="Input format (e.g. 'sc16')"
)
parser.add_argument(
"-o", "--out", required=True,
help="Output format (e.g. 'sc16')"
)
parser.add_argument(
"-s", "--samples", type=int,
help="Number of samples per iteration"
)
parser.add_argument(
"-N", "--iterations", type=int,
help="Number of iterations per benchmark",
)
parser.add_argument(
"-p", "--priorities",
help="Converter priorities. Can be 'default', 'all', or a comma-separated list of priorities.",
)
parser.add_argument(
"--max-prio", type=int,
help="Largest available priority (advanced feature)",
)
parser.add_argument(
"--n-inputs", type=int,
help="Number of input vectors",
)
parser.add_argument(
"--n-outputs", type=int,
help="Number of output vectors",
)
parser.add_argument(
"--seed-mode", choices=('random', 'incremental'),
help="How to initialize the data: random, incremental",
)
parser.add_argument(
"--debug-converter", action='store_true',
help="Skip benchmark and print conversion results. Implies iterations==1 "
"and will only run on a single converter.",
)
parser.add_argument(
"--hex", action='store_true',
help="In debug mode, display data as hex values.",
)
return parser
def main():
""" Go, go, go! """
args = setup_argparse().parse_args()
print("Running converter benchmark...")
header_out, csv_output = run_benchmark(args)
print(header_out)
if args.debug_converter:
print_debug_table(args, csv_output)
else:
print_stats_table(args, csv_output)
if __name__ == "__main__":
main()
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