Load Testing Crystal Reports with High Shareability Caching
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by Eric Landes
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Cached Load Test Setup

As you can see by looking at Figure 3, the Cached load test is set up similarly to the non-cached load test. To keep this test as a fair comparison, the mix of browsers, connections and tests were kept the same. So IE 7.0 had 84% and Firefox 16%, Lan 16%, 1.5Mbps Cable DSL 58%, and 384K Cable DSL 26%. Finally, the similar web tests, CustomerCached.webtest, and AllCachedReports.webtest are run with the same percentage. CustomerCached is 35% and AllCachedReports at 65%.

Figure 3: Cached Load Test Setup

The CustomerCached.webtest navigates through the CompanySales.rpt report the same way as in the CustomerNonCached.webtest. This time it uses the defaultcached.aspx web page, which instantiates the cached report, not the regular report. In this case the code is as shown in code Listing 1.

Listing 1

protected void Page_Load(object sender, EventArgs e)
{
  CachedCompanySales csales = new CachedCompanySales();
  CrystalReportViewer1.ReportSource = csales;
}

In this case we use the object CachedCompanySales instead of CompanySales. This is the default Crystal Caching object, which is created with every report in your Visual Studio project. Just add this simple code in your page_load event to invoke caching.

In every other way the web test is the same, other than using defaultcached.aspx.

In the same way, AllCachedReports.webtest is used. For this, we use defaultcached.aspx to load the CompanySales.rpt, SalesOrdercached.aspx to load the cached salesorder.rpt report, and SalesPersonCached.aspx to load the cached salesperson.rpt report. Each of these aspx pages loads the reports cache object to the crystal viewer.


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