SqlCE-Wmi-Test

1. Efficiency of SQL CE compared with WMI (currently used)

[Test Data]

WMI

class PluginExecuteMetrics
{
	[key] string PluginId;
	string PluginName;
	uint32 ExecuteTotalCount;
	uint32 ExecuteExceptionCount;
	uint64 ExecuteMinDuration;
	uint64 ExecuteAvgDuration;
	uint64 ExecuteMaxDuration;
};

SQL CE

class PluginExecuteMetrics
{
	[key] string PluginId;
	string PluginName;
	INT ExecuteTotalCount;
	INT ExecuteExceptionCount;
	BIGINT ExecuteMinDuration;
	BIGINT ExecuteAvgDuration;
	BIGINT ExecuteMaxDuration;
}

Notice:

Pluginid is generated randomly using Guid.NewGuid()
PluginName and int are default value.
using System.Data.SqlServerCe and System.Management

[EXAMPLE]

insert 5000 plugin metrics execute result into SQL CE table (with random PluginId and default count) result:

insert 5000 plugin metrics execute result into WMI table(with random PluginId and default count) result:

[INSERT]

[DELETE]

[UPDATE]

[SEARCH]

2.availability

[schema changed]

SQL CE

still available when add/drop/alter a column
using sql "ALTER TABLE ADD/DROP/ALTER COLUMN" ( no data in this column)

WMI

needs to compile the MOF file (no instance in this class)

3.Install on Client's PC

SQL CE needs an extra .exe installation package on client's PC.
2.5MB SSCERuntime-ENU.msi
msi package With WiX : 34KB(original test code) -> 2.49MB

4.Feasibility

to what extend support SQL SQL Server Compact 与 SQL Server 之间的差异
NOT Support: ORDER BY/Stored Procedure/...
any other use of WMI ? (get process id / os version /)

5.Other choices

Firebird Embedded
SQLite
TurboSQL

6.CPU Usage

Notice

both use Resource Monitor to check the avg CPU usage
the whole .exe file includes create database and insert/update/search/delete operation(5000 times each) and a Console output

SQLCE : 12%

WMI :6.5%

7.Memory Usage