In-Memory OLTP sample

Author: jodebrui

samples/databases/wide-world-importers/sample-scripts/in-memory-oltp/README.md

@@ -0,0 +1,63 @@
+# Sample performance with In-Memory OLTP in WideWorldImporters
+
+This script simulates an insertion workload for vehicle location in the WideWorldImporters sample database. Note that this script is single-threaded. For a multi-threaded variant, see the [vehicle-location-insert](../../workload-drivers/vehicle-location-insert) workload driver.
+
+The main purpose is to compare the performance of data insertion into traditional disk-based tables compared with memory-optimized tables. For a more comprehensive sample demonstrating the performance of In-Memory OLTP see the [in-memory/ticket-reservations](/samples/features/in-memory/ticket-reservations) sample.
+
+### Contents
+
+[About this sample](#about-this-sample)<br/>
+[Before you begin](#before-you-begin)<br/>
+[Running the sample](#run-this-sample)<br/>
+[Sample details](#sample-details)<br/>
+[Disclaimers](#disclaimers)<br/>
+[Related links](#related-links)<br/>
+
+
+<a name=about-this-sample></a>
+
+## About this sample
+
+<!-- Delete the ones that don't apply -->
+1. **Applies to:** SQL Server 2016 (or higher), Azure SQL Database
+1. **Key features:** Core database features
+1. **Workload:** single-threaded insert
+1. **Programming Language:** T-SQL
+1. **Authors:** Greg Low, Jos de Bruijn
+1. **Update history:** 25 May 2016 - initial revision
+
+<a name=before-you-begin></a>
+
+## Before you begin
+
+To run this sample, you need the following prerequisites.
+
+**Software prerequisites:**
+
+<!-- Examples -->
+1. SQL Server 2016 (or higher) or Azure SQL Database. 
+2. The WideWorldImporters database.
+
+<a name=run-this-sample></a>
+
+## Running the sample
+
+1. Execute the script in SSMS.
+
+2. Observe the time taken for the inserts in disk-based and memory-optimized tables.
+
+## Sample details
+
+
+
+<a name=disclaimers></a>
+
+## Disclaimers
+The code included in this sample is not intended to be used for production purposes.
+
+<a name=related-links></a>
+
+## Related Links
+<!-- Links to more articles. Remember to delete "en-us" from the link path. -->
+TBD
+

samples/databases/wide-world-importers/sample-scripts/in-memory-oltp/VehicleLocation.sql

@@ -47,7 +47,9 @@ To run this sample, you need the following prerequisites.
 
 2. Build the solution.
 
-3. Run the app.
+3. Connect to the database and 
+
+4. Run the app and follow the instructions on-screen. Compare the time taken for On Disk and In Memory insertion.
 
 ## Sample details
 
@@ -63,6 +65,9 @@ You can control the number of threads performing the insert operations. You can
 
 The application will periodically (about every second) display the latest execution times for each insert.
 
+If there is no significant performance difference, this could be an indication of a log IO bottleneck, as each insert results in a transaction commit that involves a flush to disk. It is possible to work around using [delayed durability](https://msdn.microsoft.com/library/dn449490.aspx) in the database:
+
+	ALTER DATABASE WideWorldImporters SET DELAYED_DURABILITY=FORCED
 
 <a name=disclaimers></a>