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Support #5866

[DS-50] Add the ability to preload a fake_fsync library in pmt.rb

Added by Kurt Biery over 6 years ago. Updated over 6 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
-
Target version:
Start date:
04/09/2014
Due date:
04/18/2014
% Done:

0%

Estimated time:
4.00 h
Experiment:
-
Co-Assignees:
Duration: 10

Description

To work around the fact that fsync system calls from ROOT cause file closing to occasionally be quite slow, Alessandro has create a shared library that has the fsync called dummied out. We would like the use (or not) of this special fake library to be user-selectable by specifying an option to pmt.rb.


Related issues

Related to ds50daq - Feature #4810: Investigate why we get backpressure of more than 5 seconds at LNGSClosed10/21/201304/25/2014

History

#1 Updated by Kurt Biery over 6 years ago

  • Due date set to 04/18/2014
  • Status changed from New to Assigned
  • Assignee set to Kurt Biery
  • Estimated time set to 4.00 h

#2 Updated by Kurt Biery over 6 years ago

  • Target version set to v1_06_00

#3 Updated by Kurt Biery over 6 years ago

  • Target version changed from v1_06_00 to v1_07_00

#4 Updated by Kurt Biery over 6 years ago

  • Status changed from Assigned to Resolved

This change was made.

#5 Updated by Kurt Biery over 6 years ago

  • Status changed from Resolved to Closed

I ran some limited tests at the DS-50 WH14 teststand (successful). The final test will come at LNGS when we roll out the ds50daq release that makes use of this change.



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