Fix GetRegisteredOrEnabledProviders() documentation claiming list is small

[Copilot]

The documentation for GetRegisteredOrEnabledProviders() incorrectly stated it returns "a relatively small list (less than 1000), unlike GetPublishedProviders." In practice, this method returns ~2500+ providers, significantly more than GetPublishedProviders() which returns ~1100.

Changes

• Updated documentation to reflect actual behavior: "often 2000+ entries, potentially larger than GetPublishedProviders"

/// <summary>
/// Returns the GUID of all event provider that either has registered itself in a running process (that is
/// it CAN be enabled) or that a session has enabled (even if no instances of the provider exist in any process).
/// <para>
/// This list can be quite large (often 2000+ entries), potentially larger than GetPublishedProviders.
/// </para>
/// </summary>
public static unsafe List<Guid> GetRegisteredOrEnabledProviders()

Original prompt

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This section details on the original issue you should resolve

<issue_title>Large number of providers from GetRegisteredOrEnabledProviders() goes against documentation</issue_title>
<issue_description>I have used these methods to get a list of providers on my machine:

• logman query providers : 1108 providers
• TraceEventProviders.GetPublishedProviders() : 1104 providers
• TraceEventProviders.GetRegisteredOrEnabledProviders() : ~2540 providers (fluctuates consistently around this number)

The documentation for GetRegisteredOrEnabledProviders() states:

This is a relatively small list (less than 1000), unlike GetPublishedProviders.

I am not getting a "small list". What is causing this inconsistency?

It's also worth noting that calling TraceEventProviders.GetProviderName() on each of these >2000 provider GUIDs only yields ~790 names that can be mapped.</issue_description>

<agent_instructions>Please fix the comments here. Don't make any changes to code.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Large number of providers from GetRegisteredOrEnabledProviders() goes against documentation #1071

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[brianrob]

@copilot please address the comment.

[brianrob]

Suggested change

/// Note that not all providers returned will have names available via GetProviderName().

[Copilot]

@copilot please address the comment.

Removed the GetProviderName note from the documentation in commit e7cb514.

[marklio]

LGTM. Should there be an enumeration API that allows enumeration without a "big" heap allocation?

[brianrob]

LGTM. Should there be an enumeration API that allows enumeration without a "big" heap allocation?

Yeah, likely. This is one of those things where I think I'd like to go through the API surface and see what new APIs we might add. The API surface was designed before many of the modern techniques and so you'll find these littered all throughout.