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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/>.
"""Bumpptr allocator
The bumpptr allocator makes the biggest possible tradeoff between speed and
memory in speeds favor. Memory is mmapped per thread and never freed.
See src/bumpptr.c for the actual implementation.
"""
from src.artifact import GitArtifact
from src.allocator import Allocator
VERSION = "7b73dc51bba043d6b3269dd497263f03d52fc1ca"
class Speedymalloc(Allocator):
""" Speedymalloc definition for allocbench"""
sources = GitArtifact("speedymalloc",
"https://gitlab.cs.fau.de/flow/speedymalloc.git")
def __init__(self, name, **kwargs):
configuration = ""
for option, value in kwargs.get("options", {}).items():
configuration += f"-D{option}={value} "
self.build_cmds = [
f"meson {{srcdir}} {{dir}} {configuration}", "ninja -C {dir}"
]
self.LD_PRELOAD = "{dir}/libspeedymalloc.so"
super().__init__(name, **kwargs)
speedymalloc = Speedymalloc("speedymalloc", version=VERSION)
speedymalloc_dont_madv_free = Speedymalloc("speedymalloc_dont_madv_free",
options={"madvise_free": "false"},
version=VERSION)
speedymalloc_dont_madv_willneed = Speedymalloc(
"speedymalloc_dont_madv_willneed",
options={"madvise_willneed": "false"},
version=VERSION)
speedymalloc_4095_sc_32 = Speedymalloc("speedymalloc_dont_madv_willneed",
options={
"cache_bins": 4095,
"cache_bin_seperation": 32
},
version=VERSION)
speedymalloc_no_glab = Speedymalloc(
"speedymalloc_dont_madv_willneed",
options={"max_local_allocation_buffer_size": 0},
version=VERSION)
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