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# Copyright 2018-2019 Florian Fischer <florian.fl.fischer@fau.de>
#
# This file is part of allocbench.
#
# allocbench is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# allocbench is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with allocbench. If not, see <http://www.gnu.org/licenses/>.
"""Definition of the blowup micro benchmark"""
from src.benchmark import Benchmark
class BenchmarkBlowup(Benchmark):
"""Blowup micro benchmark
Check if allocators reuse memory.
Thread behaviour:
1. Do many allocations and frees (100MiB is the maximum of live allocations at all times)
2. Start new thread
3. Join new thread
A perfect reusing allocator would need 100MiB RSS and a non reusing allocator
would need 1GiB.
"""
def __init__(self):
name = "blowup"
self.cmd = "blowup"
self.requirements = ["blowup"]
super().__init__(name)
def summary(self):
# hack ideal rss in data set
allocators = self.results["allocators"]
allocators["Ideal_RSS"] = {"color": "C" + str(len(allocators) + 1)}
self.results["stats"]["Ideal_RSS"] = {}
for perm in self.iterate_args(args=self.results["args"]):
self.results["stats"]["Ideal_RSS"][perm] = {"mean": {"VmHWM": 1024 * 100},
"std" : {"VmHWM": 0}}
self.barplot_single_arg("{VmHWM}",
ylabel='"VmHWM in KB"',
title='"realloc micro benchmark"',
filepostfix="vmhwm")
del allocators["Ideal_RSS"]
del self.results["stats"]["Ideal_RSS"]
self.export_stats_to_dataref("VmHWM")
blowup = BenchmarkBlowup()
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