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Feature #16150

Implement fadvise dont need for ROOT data output (DirectIO)

Added by Eric Flumerfelt over 2 years ago. Updated over 2 years ago.

Status:
New
Priority:
Normal
Category:
Additional Functionality
Target version:
-
Start date:
04/11/2017
Due date:
% Done:

0%

Estimated time:
Experiment:
-
Co-Assignees:
Duration:

Description

To help reduce disk cache effects on artdaq, we would like to have a fsync and fadvise dontneed at the end of file writing to "simulate" direct IO.

History

#1 Updated by Eric Flumerfelt over 2 years ago

Also think about doing this periodically (or even for every write), to reduce the amount of time blocking.



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