CS3.cs

using System;
using System.Numerics;

public class MemtestS{
    private const int NUM_RECORDS = 50 * 1000 * 444;
 
    private static CSMemoryTrade[] trades;
 
    static void Main(){
	trades = new CSMemoryTrade[NUM_RECORDS]; 
        for (int i = 0; i < NUM_RECORDS; i++){
            trades[i] = new CSMemoryTrade();
	}

        for (int i = 0; i < 5; i++){
            perfRun(i);
        }
    }
 
    private static void perfRun(int runNum){
	long milliseconds = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
        long start = milliseconds;
 
        init();
	BigInteger buyCost = new BigInteger(0);
	BigInteger sellCost = new BigInteger(0);
 
        for (int i = 0; i < NUM_RECORDS; i++){
	    BigInteger toAdd = new BigInteger(trades[i].getPrice() * trades[i].getQuantity());
            if (trades[i].getSide() == 'B'){
                buyCost += toAdd;
            }
            else{
                sellCost += toAdd;
            }
        }
 	
	milliseconds = DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond;
	long end = milliseconds;
        long duration = end - start;
        System.Console.Write(runNum + " - duration " + duration + "ms\n");
        System.Console.Write("buyCost = " + buyCost + " sellCost = " + sellCost + "\n");
    }
 
    public static void init()
    {
        for (int i = 0; i < NUM_RECORDS; i++){
            trades[i].setTradeId(i);
            trades[i].setClientId(1);
            trades[i].setVenueCode(123);
            trades[i].setInstrumentCode(321);
 
            trades[i].setPrice(i);
            trades[i].setQuantity(i);
 
            trades[i].setSide((i & 1) == 0 ? 'B' : 'S');
        }
    }
 
 
    private sealed class CSMemoryTrade
    {
        private long tradeId;
        private long clientId;
        private int venueCode;
        private int instrumentCode;
        private long price;
        private long quantity;
        private char side;
 
        public long getTradeId()
        {
            return tradeId;
        }
 
        public void setTradeId(long tradeId)
        {
            this.tradeId = tradeId;
        }
 
        public long getClientId()
        {
            return clientId;
        }
 
        public void setClientId(long clientId)
        {
            this.clientId = clientId;
        }
 
        public int getVenueCode()
        {
            return venueCode;
        }
 
        public void setVenueCode(int venueCode)
        {
            this.venueCode = venueCode;
        }
 
        public int getInstrumentCode()
        {
            return instrumentCode;
        }
 
        public void setInstrumentCode(int instrumentCode)
        {
            this.instrumentCode = instrumentCode;
        }
 
        public long getPrice()
        {
            return price;
        }
 
        public void setPrice(long price)
        {
            this.price = price;
        }
 
        public long getQuantity()
        {
            return quantity;
        }
 
        public void setQuantity(long quantity)
        {
            this.quantity = quantity;
        }
 
        public char getSide()
        {
            return side;
        }
 
        public void setSide(char side)
        {
            this.side = side;
        }
    }
}