Try libeatmydata in edx-platform tests

Description

libeatmydata speeds up disk writes by turning off fsync functionality; this increases the risk of data loss on crashes, but this is a negligible risk when running tests (crashes are rare and typically cause the tests to fail anyway).

A/C:

  • Review New Relic Infrastructure metrics to identify the processes which write the most data to disk during edx-platform test jobs (npm, pip, MySQL, and MongoDB are likely candidates).

  • Install libeatmydata on the AMIs used to run tests

  • Try enabling libeatmydata for the target processes and measure the impact (if any) on job duration.

Steps to Reproduce

None

Current Behavior

None

Expected Behavior

None

Reason for Variance

None

Release Notes

None

User Impact Summary

None
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Assignee

Unassigned

Reporter

Jeremy Bowman