public long CallSaveChangesOnceInTransaction()
{
_timer.Restart();
try
{
using (var dbContext = new ApplicationDbContext())
{
using (var transactionScope = dbContext.Database.BeginTransaction())
{
for (var i = 0; i < _iterations; i++)
{
dbContext.Products.Add(new Product(Guid.NewGuid()));
}
dbContext.SaveChanges();
transactionScope.Commit();
}
}
}
catch (Exception ex)
{
throw ex;
}
return _timer.ElapsedMilliseconds;
}
public long BulkInsert()
{
_timer.Restart();
using (var dbContext = new ApplicationDbContext())
{
var products = new List<Product>();
using (var transactionScope = dbContext.Database.BeginTransaction())
{
for (var i = 0; i < _iterations; i++)
{
products.Add(new Product(Guid.NewGuid()));
}
dbContext.BulkInsert(products);
dbContext.SaveChanges();
transactionScope.Commit();
}
}
return _timer.ElapsedMilliseconds;
}
public long CallSaveChangesOnceUsingAddRange()
{
_timer.Restart();
using (var dbContext = new ApplicationDbContext())
{
var products = new List<Product>();
for (var i = 0; i < _iterations; i++)
{
products.Add(new Product(Guid.NewGuid()));
}
dbContext.Products.AddRange(products);
dbContext.SaveChanges();
}
return _timer.ElapsedMilliseconds;
}
public long WarmingUp()
{
_timer.Restart();
using (var dbContext = new ApplicationDbContext())
{
dbContext.Products.Add(new Product(Guid.NewGuid()));
dbContext.SaveChanges();
}
return _timer.ElapsedMilliseconds;
}
public long CallSaveChangesRepeatedly()
{
_timer.Restart();
using (var dbContext = new ApplicationDbContext())
{
for (var i = 0; i < _iterations; i++)
{
dbContext.Products.Add(new Product(Guid.NewGuid()));
dbContext.SaveChanges();
}
}
return _timer.ElapsedMilliseconds;
}
