using Microsoft.EntityFrameworkCore; using MySql.Data.MySqlClient; using System; using System.Diagnostics; namespace DorisTest { public class TestContext : DbContext { protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) { optionsBuilder.UseMySql("Server=localhost;Port=9030;Database=test;Uid=root;Allow User Variables=True;"); } } internal class Program { private static void Main(string[] args) { using var db = new TestContext(); //create database test; //use test; //create table test //( // userid bigint, // username varchar(32), // amount bigint default '0' //) //unique key(userid) //distributed by hash(userid) buckets 1 //properties( // "replication_num" = "1" //); //insert into test values (0,"user1",20); using (var conn = new MySqlConnection("Server=localhost;Port=9030;Database=test;Uid=root;Allow User Variables=True;")) { conn.Open(); using (var cmd = conn.CreateCommand()) { var watch = new Stopwatch(); watch.Start(); for (int i = 427383; i < 10000000; i++) { cmd.CommandText += $"insert into pv_bitmap values({i + 1},'{GetChar()}{GetChar()}{GetChar()}',to_bitmap({new Random((int)DateTime.UtcNow.Ticks).Next(1, 100)}));"; if (i % 100 == 0 || i == 10000000 - 1) { cmd.ExecuteNonQuery(); watch.Stop(); Console.WriteLine(watch.ElapsedMilliseconds + ":" + i.ToString()); watch = new Stopwatch(); watch.Start(); cmd.CommandText = ""; } } } } } private static char GetChar() { return (char)new Random((int)DateTime.UtcNow.Ticks).Next(97, 122); } } }