42 lines
1.2 KiB
Zig
42 lines
1.2 KiB
Zig
// Modify the HashFunction variable to the one wanted to test.
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//
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// NOTE: The throughput measurement may be slightly lower than other measurements since we run
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// through our block alignment functions as well. Be aware when comparing against other tests.
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//
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// ```
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// zig build-exe --release-fast --library c throughput_test.zig
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// ./throughput_test
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// ```
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const std = @import("std");
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const c = @cImport({
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@cInclude("time.h");
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});
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const HashFunction = @import("md5.zig").Md5;
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const MiB = 1024 * 1024;
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const BytesToHash = 1024 * MiB;
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pub fn main() !void {
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var stdout_file = try std.io.getStdOut();
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var stdout_out_stream = std.io.FileOutStream.init(&stdout_file);
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const stdout = &stdout_out_stream.stream;
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var block: [HashFunction.block_size]u8 = undefined;
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std.mem.set(u8, block[0..], 0);
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var h = HashFunction.init();
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var offset: usize = 0;
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const start = c.clock();
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while (offset < BytesToHash) : (offset += block.len) {
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h.update(block[0..]);
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}
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const end = c.clock();
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const elapsed_s = f64(end - start) / f64(c.CLOCKS_PER_SEC);
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const throughput = u64(BytesToHash / elapsed_s);
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try stdout.print("{}: {} MiB/s\n", @typeName(HashFunction), throughput / (1 * MiB));
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}
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