Performance degradation for some double precision math functions after upgrade to glibc-2.5-81.el5_8.7

Solution Verified - Updated -

Issue

Certain double precision math functions (exp, sin, cos, tan) have slowed down significantly after the upgrade to glibc-2.5-81.el5_8.7, with factors between approximately 3.5 to 6.5.

Environment

  • Red Hat Enterprise Linux 5
  • glibc-2.5-81.el5_8.7

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