From 2adeace905d6c36e3a333647c21287493ab98485 Mon Sep 17 00:00:00 2001 From: Andrew Kelley Date: Tue, 6 Apr 2021 22:34:48 -0700 Subject: [PATCH] std: modernize zig parser perf test use the file size formatting functions --- lib/std/zig/perf_test.zig | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/lib/std/zig/perf_test.zig b/lib/std/zig/perf_test.zig index b111170902..49a19a067c 100644 --- a/lib/std/zig/perf_test.zig +++ b/lib/std/zig/perf_test.zig @@ -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 {