diff options
Diffstat (limited to 'src/benchmarks/falsesharing.py')
| -rw-r--r-- | src/benchmarks/falsesharing.py | 60 |
1 files changed, 34 insertions, 26 deletions
diff --git a/src/benchmarks/falsesharing.py b/src/benchmarks/falsesharing.py index 671dbc8..530ca99 100644 --- a/src/benchmarks/falsesharing.py +++ b/src/benchmarks/falsesharing.py @@ -14,7 +14,6 @@ # # 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 falsesahring benchmark""" import re @@ -25,7 +24,6 @@ import numpy as np from src.benchmark import Benchmark from src.globalvars import summary_file_ext - TIME_RE = re.compile("^Time elapsed = (?P<time>\\d*\\.\\d*) seconds.$") @@ -36,14 +34,15 @@ class BenchmarkFalsesharing(Benchmark): times. If the allocated objects are on the same cache line the writes will be expensive because of cache thrashing. """ - def __init__(self): name = "falsesharing" self.cmd = "cache-{bench}{binary_suffix} {threads} 100 8 10000000" - self.args = {"bench": ["thrash", "scratch"], - "threads": Benchmark.scale_threads_for_cpus(1)} + self.args = { + "bench": ["thrash", "scratch"], + "threads": Benchmark.scale_threads_for_cpus(1) + } self.requirements = ["cache-thrash", "cache-scratch"] super().__init__(name) @@ -62,13 +61,18 @@ class BenchmarkFalsesharing(Benchmark): for allocator in allocators: sequential_perm = self.Perm(bench=bench, threads=1) - for perm in self.iterate_args_fixed({"bench": bench}, args=args): + for perm in self.iterate_args_fixed({"bench": bench}, + args=args): speedup = [] l1chache_misses = [] for i, measure in enumerate(self.results[allocator][perm]): - sequential_time = float(self.results[allocator][sequential_perm][i]["time"]) - measure["speedup"] = sequential_time / float(measure["time"]) - measure["l1chache_misses"] = eval("({L1-dcache-load-misses}/{L1-dcache-loads})*100".format(**measure)) + sequential_time = float(self.results[allocator] + [sequential_perm][i]["time"]) + measure["speedup"] = sequential_time / float( + measure["time"]) + measure["l1chache_misses"] = eval( + "({L1-dcache-load-misses}/{L1-dcache-loads})*100". + format(**measure)) # delete and recalculate stats del self.results["stats"] @@ -81,23 +85,27 @@ class BenchmarkFalsesharing(Benchmark): autoticks=False, fixed=["bench"]) - self.plot_fixed_arg("{l1chache_misses}", - ylabel="'l1 cache misses in %'", - title="'cache misses: ' + arg + ' ' + str(arg_value)", - filepostfix="l1-misses", - autoticks=False, - fixed=["bench"]) - - self.plot_fixed_arg("({LLC-load-misses}/{LLC-loads})*100", - ylabel="'llc cache misses in %'", - title="'LLC misses: ' + arg + ' ' + str(arg_value)", - filepostfix="llc-misses", - autoticks=False, - fixed=["bench"]) - - self.write_tex_table([{"label": "Speedup", - "expression": "{speedup}", - "sort":">"}], + self.plot_fixed_arg( + "{l1chache_misses}", + ylabel="'l1 cache misses in %'", + title="'cache misses: ' + arg + ' ' + str(arg_value)", + filepostfix="l1-misses", + autoticks=False, + fixed=["bench"]) + + self.plot_fixed_arg( + "({LLC-load-misses}/{LLC-loads})*100", + ylabel="'llc cache misses in %'", + title="'LLC misses: ' + arg + ' ' + str(arg_value)", + filepostfix="llc-misses", + autoticks=False, + fixed=["bench"]) + + self.write_tex_table([{ + "label": "Speedup", + "expression": "{speedup}", + "sort": ">" + }], filepostfix="speedup.table") self.export_stats_to_csv("speedup", "time") |