ZipponDB/benchmark.zig

const std = @import("std");
const dtype = @import("dtype");
const DBEngine = @import("src/main.zig").DBEngine;
const ziqlTokenizer = @import("src/tokenizers/ziql.zig").Tokenizer;
const ziqlToken = @import("src/tokenizers/ziql.zig").Token;
const ziqlParser = @import("src/ziqlParser.zig").Parser;
const ZipponError = @import("error").ZipponError;

const names = [_][]const u8{ "Alice", "Bob", "Charlie", "Dave", "Eve" };
const emails = [_][]const u8{ "alice@email.com", "bob@email.com", "charlie@email.com", "dave@email.com", "eve@email.com" };
const dates = [_][]const u8{ "2000/01/01", "1954/04/02", "1998/01/21", "1977/12/31" };
const times = [_][]const u8{ "12:04", "20:45:11", "03:11:13", "03:00:01.0152" };
const datetimes = [_][]const u8{ "2000/01/01-12:04", "1954/04/02-20:45:11", "1998/01/21-03:11:13", "1977/12/31-03:00:01.0153" };
const scores = [_]i32{ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

pub const std_options = .{
    .logFn = myLog,
};

pub fn myLog(
    comptime message_level: std.log.Level,
    comptime scope: @Type(.EnumLiteral),
    comptime format: []const u8,
    args: anytype,
) void {
    if (true) return;
    _ = message_level;
    _ = scope;
    _ = format;
    _ = args;
}

pub fn main() !void {
    const to_test = [_]usize{500_000};
    {
        var line_buffer: [1024 * 1024]u8 = undefined;
        var db_engine = DBEngine.init("benchmark", "schema/example");
        defer db_engine.deinit();

        for (to_test) |users_count| {
            {
                const null_term_query_str = try std.fmt.bufPrintZ(&line_buffer, "DELETE User {{}}", .{});
                var toker = ziqlTokenizer.init(null_term_query_str);
                var parser = ziqlParser.init(&toker, &db_engine.file_engine, &db_engine.schema_engine);
                try parser.parse();
            }
            // Populate with random dummy value
            // Need some speed up, spended times to find that it is the parsonConditionValue that take time, the last switch to be exact, that parse str to value
            {
                std.debug.print("\n=====================================\n\n", .{});
                std.debug.print("Populating with {d} users.\n", .{users_count});

                const allocator = std.heap.page_allocator;

                var prng = std.rand.DefaultPrng.init(0);
                const rng = prng.random();
                const populate_start_time = std.time.nanoTimestamp();

                var array = std.ArrayList(u8).init(allocator);
                defer array.deinit();
                var writer = array.writer();

                try writer.print(
                    "ADD User (name = '{s}', email='{s}', age={d}, scores=[ {d} ], best_friend=none, friends=none, bday={s}, a_time={s}, last_order={s})",
                    .{
                        names[rng.uintAtMost(usize, names.len - 1)],
                        emails[rng.uintAtMost(usize, emails.len - 1)],
                        rng.uintAtMost(usize, 100),
                        scores[rng.uintAtMost(usize, scores.len - 1)],
                        dates[rng.uintAtMost(usize, dates.len - 1)],
                        times[rng.uintAtMost(usize, times.len - 1)],
                        datetimes[rng.uintAtMost(usize, datetimes.len - 1)],
                    },
                );

                for (users_count - 1) |_| {
                    try writer.print(
                        "('{s}', '{s}', {d}, [ {d} ], none, none, {s}, {s}, {s})",
                        .{
                            names[rng.uintAtMost(usize, names.len - 1)],
                            emails[rng.uintAtMost(usize, emails.len - 1)],
                            rng.uintAtMost(usize, 100),
                            scores[rng.uintAtMost(usize, scores.len - 1)],
                            dates[rng.uintAtMost(usize, dates.len - 1)],
                            times[rng.uintAtMost(usize, times.len - 1)],
                            datetimes[rng.uintAtMost(usize, datetimes.len - 1)],
                        },
                    );
                }

                const null_term_query_str = try std.fmt.allocPrintZ(allocator, "{s}", .{array.items});
                defer allocator.free(null_term_query_str);

                var toker = ziqlTokenizer.init(null_term_query_str);
                var parser = ziqlParser.init(&toker, &db_engine.file_engine, &db_engine.schema_engine);
                try parser.parse();

                const populate_end_time = std.time.nanoTimestamp();
                const populate_duration = @as(f64, @floatFromInt(populate_end_time - populate_start_time)) / 1e9;

                std.debug.print("Populate duration: {d:.6} seconds\n\n", .{populate_duration});

                var buffer = std.ArrayList(u8).init(std.heap.page_allocator);
                defer buffer.deinit();
                try db_engine.file_engine.writeDbMetrics(&buffer);
                std.debug.print("{s}\n", .{buffer.items});
                std.debug.print("--------------------------------------\n\n", .{});
            }

            //{
            //    for (db_engine.schema_engine.struct_array) |sstruct| {
            //        const mb: f64 = @as(f64, @floatFromInt(sstruct.uuid_file_index.arena.queryCapacity())) / 1024.0 / 1024.0;
            //        std.debug.print("Sstruct: {s}\n", .{sstruct.name});
            //        std.debug.print("Memory: {d:.2}Mb\n", .{mb});
            //        std.debug.print("Count: {d}\n\n", .{sstruct.uuid_file_index.map.count()});
            //        std.debug.print("--------------------------------------\n\n", .{});
            //    }
            //}

            // Define your benchmark queries
            {
                const queries = [_][]const u8{
                    "GRAB User {}",
                    "GRAB User [1] {}",
                    "GRAB User [name] {}",
                    "GRAB User {name = 'Charlie'}",
                    "GRAB User {age > 30}",
                    "GRAB User {bday > 2000/01/01}",
                    "GRAB User {age > 30 AND name = 'Charlie' AND bday > 2000/01/01}",
                    "GRAB User {best_friend IN {name = 'Charlie'}}",
                    "DELETE User {}",
                };

                // Run benchmarks
                for (queries) |query| {
                    const start_time = std.time.nanoTimestamp();

                    // Execute the query here
                    const null_term_query_str = try std.fmt.bufPrintZ(&line_buffer, "{s}", .{query});
                    var toker = ziqlTokenizer.init(null_term_query_str);
                    var parser = ziqlParser.init(&toker, &db_engine.file_engine, &db_engine.schema_engine);
                    try parser.parse();

                    const end_time = std.time.nanoTimestamp();
                    const duration = @as(f64, @floatFromInt(end_time - start_time)) / 1e6;

                    std.debug.print("Query: \t\t{s}\nDuration: \t{d:.6} ms\n\n", .{ query, duration });
                }

                std.debug.print("=====================================\n\n", .{});
            }
        }
    }
}