This repository has been archived by the owner on Oct 12, 2022. It is now read-only.
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
2db9857
commit 68e48ca
Showing
2 changed files
with
134 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,103 @@ | ||
/** | ||
* Benchmark for array ops. | ||
* | ||
* Copyright: Copyright Martin Nowak 2016 -. | ||
* License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0) | ||
* Authors: Martin Nowak | ||
*/ | ||
import core.cpuid, std.algorithm, std.datetime, std.meta, std.stdio, std.string, | ||
std.range; | ||
|
||
float[6] getLatencies(T, string op)() | ||
{ | ||
enum N = 256; | ||
auto a = new T[](N), b = new T[](N), c = new T[](N); | ||
a[] = 3; | ||
b[] = 2; | ||
c[] = 1; | ||
float[6] latencies = float.max; | ||
foreach (i, ref latency; latencies) | ||
{ | ||
auto len = 1 << i; | ||
foreach (_; 1 .. 32) | ||
{ | ||
auto sw = StopWatch(AutoStart.yes); | ||
foreach (off; 0 .. 1_024) | ||
{ | ||
off &= 127; | ||
enum op = op.replace("const", "1").replace("a", | ||
"a[off .. off + len]").replace("b", | ||
"b[off .. off + len]").replace("c", "c[off .. off + len]"); | ||
mixin(op ~ ";"); | ||
} | ||
latency = min(latency, sw.peek.nsecs); | ||
} | ||
} | ||
float[6] res = latencies[] / 1024; | ||
return res; | ||
} | ||
|
||
float[4] getThroughput(T, string op)() | ||
{ | ||
enum N = (40 * 1024 * 1024 + 64) / T.sizeof; | ||
auto a = new T[](N), b = new T[](N), c = new T[](N); | ||
a[] = 3; | ||
b[] = 2; | ||
c[] = 1; | ||
float[4] latencies = float.max; | ||
size_t[4] lengths = [ | ||
8 * 1024 / T.sizeof, 32 * 1024 / T.sizeof, 512 * 1024 / T.sizeof, 32 * 1024 * 1024 / T | ||
.sizeof | ||
]; | ||
foreach (i, ref latency; latencies) | ||
{ | ||
auto len = lengths[i] / 64; | ||
foreach (_; 1 .. 4) | ||
{ | ||
auto sw = StopWatch(AutoStart.yes); | ||
foreach (off; size_t(0) .. size_t(64)) | ||
{ | ||
off = off * len + (off % (64 / T.sizeof)); | ||
enum op = op.replace("const", "1").replace("a", | ||
"a[off .. off + len]").replace("b", | ||
"b[off .. off + len]").replace("c", "c[off .. off + len]"); | ||
mixin(op ~ ";"); | ||
} | ||
latency = min(latency, sw.peek.nsecs); | ||
} | ||
} | ||
float[4] throughputs = T.sizeof * lengths[] / latencies[]; | ||
return throughputs; | ||
} | ||
|
||
string[] genOps() | ||
{ | ||
string[] ops; | ||
foreach (op1; ["+", "-", "*", "/"]) | ||
{ | ||
ops ~= "a " ~ op1 ~ "= b"; | ||
ops ~= "a " ~ op1 ~ "= const"; | ||
foreach (op2; ["+", "-", "*", "/"]) | ||
{ | ||
ops ~= "a " ~ op1 ~ "= b " ~ op2 ~ " c"; | ||
ops ~= "a " ~ op1 ~ "= b " ~ op2 ~ " const"; | ||
} | ||
} | ||
return ops; | ||
} | ||
|
||
void runOp(string op)() | ||
{ | ||
foreach (T; AliasSeq!(ubyte, ushort, uint, ulong, byte, short, int, long, float, | ||
double)) | ||
writefln("%s, %s, %(%.2f, %), %(%s, %)", T.stringof, op, | ||
getLatencies!(T, op), getThroughput!(T, op)); | ||
} | ||
|
||
void main() | ||
{ | ||
writefln("type, op, %(latency%s, %), %-(throughput%s, %)", iota(6) | ||
.map!(i => 1 << i), ["8KB", "32KB", "512KB", "32MB"]); | ||
foreach (op; mixin("AliasSeq!(%(%s, %))".format(genOps))) | ||
runOp!op; | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,31 @@ | ||
library(ggplot2) | ||
library(dplyr) | ||
library(tidyr) | ||
|
||
dat <- NULL | ||
files <- list.files(pattern='*.csv') | ||
for (file in files) | ||
{ | ||
datFile <- read.csv(file) %>% tbl_df() %>% | ||
mutate(file=file) | ||
if (is.null(dat)) | ||
dat = datFile | ||
else | ||
dat = bind_rows(dat, datFile) | ||
} | ||
|
||
latencies <- gather(dat %>% select(-starts_with('throughput')), num_elems, latency, starts_with('latency')) | ||
throughputs <- gather(dat %>% select(-starts_with('latency')), array_size, throughput, starts_with('throughput')) | ||
|
||
levels(latencies$num_elems) <- sub("latency(\\d+)", "\\1", levels(latencies$num_elems)) | ||
levels(throughputs$array_size) <- sub("throughput(.+)", "\\1", levels(throughputs$array_size)) | ||
|
||
img <- qplot(num_elems, latency, group=type, data=latencies, geom="line", color=type) + | ||
facet_grid(op ~ file, scales="free_y") + | ||
labs(x="num elements", y="latency / ns") | ||
ggsave('array_ops_latency.svg', plot = img, width = 2 + 3 * length(files), height = 40) | ||
|
||
img <- qplot(array_size, throughput, group=type, data=throughputs, geom="line", color=type) + | ||
facet_grid(op ~ file, scales="free_y") + | ||
labs(x="array size", y="throughput / (ops / ns)") | ||
ggsave('array_ops_throughput.svg', plot = img, width = 2 + 3 * length(files), height = 40) |