[DPDK/eventdev Bug 1625] HPET reading is slow

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=1625

            Bug ID: 1625
           Summary: HPET reading is slow
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: eventdev
          Assignee: dev at dpdk.org
          Reporter: nandinipersad361 at gmail.com
  Target Milestone: ---

Description:
Reading the HPET chip is slow.

Implication:
An application that calls rte_get_hpet_cycles() or rte_timer_manage() runs
slower.

Resolution/Workaround:
The application should not call these functions too often in the main loop. An
alternative is to use the TSC register through rte_rdtsc() which is faster, but
specific to an lcore and is a cycle reference, not a time reference.

Affected Environment/Platform:
All.

Driver/Module:
Environment Abstraction Layer (EAL).

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