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Bug #1060

Document the extra reading subbuffer always allocated

Added by Jonathan Rajotte Julien almost 4 years ago. Updated almost 4 years ago.

Status:
Confirmed
Priority:
Low
Assignee:
-
Target version:
Start date:
08/30/2016
Due date:
% Done:

0%

Estimated time:

Description

On channel creation a user might only consider the size of the passed argument instead we should either warn or document that there is always an extra sub buffer allocated for reading purpose.

See lib_ring_buffer_backend_allocate on lttng-modules.

This also apply to userspace.

#1

Updated by Jonathan Rajotte Julien almost 4 years ago

After discussion with Mathieu Desnoyers, the extra buffer should only exist while tracing in flight-recorder (snapshot) mode.

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