From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [DPDK/eventdev Bug 1625] HPET reading is slow
Date: Mon, 03 Feb 2025 02:32:43 +0000 [thread overview]
Message-ID: <bug-1625-3@http.bugs.dpdk.org/> (raw)
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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@dpdk.org
Reporter: nandinipersad361@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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reply other threads:[~2025-02-03 2:32 UTC|newest]
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