private static void NonOptimized(AdsContext db)
{
var adds = db.Ads.ToList()
.Where(a => a.AdStatus.Status == "Published")
.Select(a => new
{
a.Title,
Category = (a.Category == null ? " null" : a.Category.Name),
Town = (a.Town == null ? " null " : a.Town.Name),
a.Date
}).ToList().OrderBy(a => a.Date);
}
static void Main(string[] args)
{
var db = new AdsContext();
Console.WriteLine(db.Ads.Count());
var sw = new Stopwatch();
sw.Stop();
SlowVersion(db, sw);
//OptimizedVersion(db, sw);
}
private static void WithoutInclude(AdsContext db)
{
var adds = db.Ads;
foreach (var add in adds)
{
Console.WriteLine(add.Title + " " + add.AdStatus.Status + " " +
(add.Category == null ? " no category " : add.Category.Name) + " " +
(add.Town == null ? " no town " : add.Town.Name) + " " +
(add.AspNetUser == null ? " no user " : add.AspNetUser.Name)
);
}
}
private static void WithoutInclude(AdsContext db)
{
var adds = db.Ads;
foreach (var add in adds)
{
Console.WriteLine(add.Title + " " + add.AdStatus.Status + " " +
(add.Category == null ? " no category " : add.Category.Name) + " " +
(add.Town == null ? " no town " : add.Town.Name) + " " +
(add.AspNetUser == null ? " no user " : add.AspNetUser.Name)
);
}
}
static void Main(string[] args)
{
var db = new AdsContext();
Console.WriteLine(db.Ads.Count());
var stopWatch = new Stopwatch();
stopWatch.Start();
WithoutInclude(db);
Console.WriteLine(stopWatch.Elapsed);
stopWatch.Restart();
WithInclude(db);
Console.WriteLine(stopWatch.Elapsed);
stopWatch.Stop();
}
static void Main(string[] args)
{
var db = new AdsContext();
Console.WriteLine(db.Ads.Count());
var stopWatch = new Stopwatch();
stopWatch.Start();
WithoutInclude(db);
Console.WriteLine(stopWatch.Elapsed);
stopWatch.Restart();
WithInclude(db);
Console.WriteLine(stopWatch.Elapsed);
stopWatch.Stop();
}
private static void OptimizedVersion(AdsContext db, Stopwatch sw)
{
var addsTitle = db.Ads.Select(a => a.Title);
sw.Start();
var fullSelectTime = 0;
for (int i = 0; i < 10; i++)
{
db.Database.ExecuteSqlCommand(@"CHECKPOINT; DBCC DROPCLEANBUFFERS;");
foreach (var addTitle in addsTitle)
{
Console.WriteLine(" "+addTitle);
}
var selectTime = sw.Elapsed.Milliseconds;
Console.WriteLine(selectTime + " miliseconds");
fullSelectTime += selectTime;
sw.Restart();
}
Console.WriteLine(fullSelectTime / 10 + " miliseconds - average time ");
sw.Stop();
}
static void Main(string[] args)
{
var db= new AdsContext();
Console.WriteLine(db.Ads.Count());
Console.WriteLine("---Non Optimized ");
var sw = new Stopwatch();
sw.Start();
var totalNoNOptimizedTime = 0;
var totalOptimizedTime = 0;
var nonOpitmizedTotalTime = 0;
for (int i = 0; i < 10; i++)
{
db.Database.ExecuteSqlCommand(@"CHECKPOINT; DBCC DROPCLEANBUFFERS;");
NonOptimized(db);
var timeToRun = sw.Elapsed;
totalNoNOptimizedTime += timeToRun.Milliseconds;
Console.WriteLine("Time : "+timeToRun.Milliseconds);
sw.Restart();
}
Console.WriteLine("Average time :"+totalNoNOptimizedTime/10);
Console.WriteLine();
Console.WriteLine("---Optimized");
sw.Restart();
for (int i = 0; i < 10; i++)
{
db.Database.ExecuteSqlCommand(@"CHECKPOINT; DBCC DROPCLEANBUFFERS;");
Optimized(db);
var timeToRun = sw.Elapsed;
totalOptimizedTime += timeToRun.Milliseconds;
Console.WriteLine("Time : "+timeToRun.Milliseconds);
sw.Restart();
}
Console.WriteLine("Average time :"+ totalOptimizedTime/10);
}
