Very inaccurate TSC clocksource in HPE ProLiant servers

Solution In Progress - Updated -

Issue

  • The system clock is not accurate in comparison with other clients using the same configuration and NTP servers.
  • We see big offsets only on ProLiant servers.
  • Frequency values are huge.
  • Is there a way to improve clock accuracy?

Environment

  • Red Hat Enterprise Linux (RHEL)
  • ProLiant DL560 Gen10, ProLiant DL360 Gen10, ProLiant DL380 Gen10 Plus
  • Time Stamp Counter (TSC)
  • ntp
  • chrony

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