CephFS kernel client read speed regression in Red Hat Enterprise Linux 7.5

Solution Verified - Updated -

Issue

  • CephFS kernel client read speed regression in Red Hat Enterprise Linux 7.5
  • read_ahead_kb is set to 0 by default in Red Hat Enterprise Linux 7.5

Environment

  • Red Hat Enterprise Linux 7.5
  • kernel 3.10.0-862.9.1.el7.x86_64

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