Insert 100 000 rows to ms sql server by Entity Framework SaveChanges

EFSaveChanges.cs

for (var i = 0; i < 100000; i++)
{
	using (var dbContext = new MainDbContext())
	{
		dbContext.Logs.Add(new Log()
		{
			Key = Guid.NewGuid().ToString("D"),
			Data = "some random data:" + Guid.NewGuid().ToString("D"),
			UpdatedDate = DateTime.UtcNow
		});
		dbContext.SaveChanges();
	}
}