mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 06:13:07 +00:00
873bb29c98
* std.zig.parse is moved to std.zig.Ast.parse * the new function has an additional parameter that requires passing Mode.zig or Mode.zon * moved parser.zig code to Parse.zig * added parseZon function next to parseRoot function
39 lines
1.3 KiB
Zig
39 lines
1.3 KiB
Zig
const std = @import("std");
|
|
const mem = std.mem;
|
|
const Tokenizer = std.zig.Tokenizer;
|
|
const io = std.io;
|
|
const fmtIntSizeBin = std.fmt.fmtIntSizeBin;
|
|
|
|
const source = @embedFile("../os.zig");
|
|
var fixed_buffer_mem: [10 * 1024 * 1024]u8 = undefined;
|
|
|
|
pub fn main() !void {
|
|
var i: usize = 0;
|
|
var timer = try std.time.Timer.start();
|
|
const start = timer.lap();
|
|
const iterations = 100;
|
|
var memory_used: usize = 0;
|
|
while (i < iterations) : (i += 1) {
|
|
memory_used += testOnce();
|
|
}
|
|
const end = timer.read();
|
|
memory_used /= iterations;
|
|
const elapsed_s = @intToFloat(f64, end - start) / std.time.ns_per_s;
|
|
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("parsing speed: {:.2}/s, {:.2} used \n", .{
|
|
fmtIntSizeBin(bytes_per_sec),
|
|
fmtIntSizeBin(memory_used),
|
|
});
|
|
}
|
|
|
|
fn testOnce() usize {
|
|
var fixed_buf_alloc = std.heap.FixedBufferAllocator.init(fixed_buffer_mem[0..]);
|
|
var allocator = fixed_buf_alloc.allocator();
|
|
_ = std.zig.Ast.parse(allocator, source, .zig) catch @panic("parse failure");
|
|
return fixed_buf_alloc.end_index;
|
|
}
|