public void TestDelete() { using (var db = new SampleDataContext()) { DateTime startTime = DateTime.Now; var personQuery = (from pers in db.Persons select pers).ToList(); db.Persons.RemoveRange(personQuery); db.SaveChanges(); TimeSpan elapsedTime = DateTime.Now - startTime; Console.WriteLine("DELETE:" + elapsedTime.ToString()); } }
public EFPerformanceTests() { // clean up any data from previous runs using (var db = new SampleDataContext()) { // delete any records from previous run var deptQuery = (from dept in db.Departments select dept).ToList(); db.Departments.RemoveRange(deptQuery); db.SaveChanges(); var personQuery = (from pers in db.Persons select pers).ToList(); db.Persons.RemoveRange(personQuery); db.SaveChanges(); // insert one department Department myDepartment = new Department() { name = "Operations" }; db.Departments.Add(myDepartment); db.SaveChanges(); } }
public void TestInsert() { using (var db = new SampleDataContext()) { // read first and last names List<string> firstnames = new List<string>(); using (StreamReader sr = new StreamReader(@"..\..\Data\firstnames.txt")) { string line; while ((line = sr.ReadLine()) != null) firstnames.Add(line); } List<string> lastnames = new List<string>(); using (StreamReader sr = new StreamReader(@"..\..\Data\lastnames.txt")) { string line; while ((line = sr.ReadLine()) != null) lastnames.Add(line); } db.Configuration.AutoDetectChangesEnabled = false; db.Configuration.ValidateOnSaveEnabled = false; //test inserting 1000 records DateTime startTime = DateTime.Now; for (int j = 0; j < 10; j++) { for (int i = 0; i < 1000; i++) { Person personRecord = new Person() { first = firstnames[i], last = lastnames[i], department = 1 }; db.Persons.Add(personRecord); } } db.SaveChanges(); TimeSpan elapsedTime = DateTime.Now - startTime; Console.WriteLine("INSERT:" + elapsedTime.ToString()); } }
public void TestUpdate() { using (var db = new SampleDataContext()) { DateTime startTime = DateTime.Now; var query = (from p in db.Persons select p).ToList(); foreach (var item in query) { item.last = item.last + "2"; } db.SaveChanges(); TimeSpan elapsedTime = DateTime.Now - startTime; Console.WriteLine("SELECT:" + elapsedTime.ToString()); } }