mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-01-20 14:25:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

std: modernize zig parser perf test

Browse Source 
use the file size formatting functions
This commit is contained in:
Andrew Kelley 2021-04-06 22:34:48 -07:00
parent b40d36c90b
commit 2adeace905
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/std/zig/perf_test.zig
View File

@ -9,6 +9,7 @@ const warn = std.debug.warn;
const Tokenizer = std.zig.Tokenizer;
const Parser = std.zig.Parser;
const io = std.io;
const fmtIntSizeBin = std.fmt.fmtIntSizeBin;
const source = @embedFile("../os.zig");
var fixed_buffer_mem: [10 * 1024 * 1024]u8 = undefined;
@ -25,12 +26,15 @@ pub fn main() !void {
const end = timer.read();
memory_used /= iterations;
const elapsed_s = @intToFloat(f64, end - start) / std.time.ns_per_s;
const bytes_per_sec = @intToFloat(f64, source.len * iterations) / elapsed_s;
const mb_per_sec = bytes_per_sec / (1024 * 1024);
const bytes_per_sec_float = @intToFloat(f64, source.len * iterations) / elapsed_s;
const bytes_per_sec = @floatToInt(u64, @floor(bytes_per_sec_float));
var stdout_file = std.io.getStdOut();
const stdout = stdout_file.writer();
try stdout.print("{:.3} MiB/s, {} KiB used \n", .{ mb_per_sec, memory_used / 1024 });
try stdout.print("parsing speed: {:.2}/s, {:.2} used \n", .{
fmtIntSizeBin(bytes_per_sec),
fmtIntSizeBin(memory_used),
});
}
fn testOnce() usize {