From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, bruce.richardson@intel.com,
konstantin.ananyev@intel.com, viktorin@rehivetech.com,
jianbo.liu@linaro.org, chaozhu@linux.vnet.ibm.com,
Jerin Jacob <jerin.jacob@caviumnetworks.com>
Subject: [dpdk-dev] [PATCH 0/5] improve tsc frequency calibration
Date: Sun, 13 Aug 2017 12:33:45 +0530 [thread overview]
Message-ID: <20170813070350.13700-1-jerin.jacob@caviumnetworks.com> (raw)
Some architecture like armv8 provides an architecture specific function
to get the rdtsc frequency. The existing rdtsc calibration scheme uses
OS serivce like sleep(1) to calibrate the frequency which may not
produce the accurate result. Introducing an architecture specific hook
to get the rdtsc frequency if architecture provides it. If not, use the
exiting the calibrate scheme to get the rdtsc frequency.
Jerin Jacob (5):
eal/x86: define architecture specific rdtsc hz
eal/ppc64: define architecture specific rdtsc hz
eal/armv7: define architecture specific rdtsc hz
eal/armv8: define architecture specific rdtsc hz
eal/timer: honor architecture specific rdtsc hz function
lib/librte_eal/common/eal_common_timer.c | 5 +++-
.../common/include/arch/arm/rte_cycles_32.h | 13 ++++++++++
.../common/include/arch/arm/rte_cycles_64.h | 30 ++++++++++++++++++++++
.../common/include/arch/ppc_64/rte_cycles.h | 13 ++++++++++
.../common/include/arch/x86/rte_cycles.h | 13 ++++++++++
5 files changed, 73 insertions(+), 1 deletion(-)
--
2.14.0
next reply other threads:[~2017-08-13 7:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-13 7:03 Jerin Jacob [this message]
2017-08-13 7:03 ` [dpdk-dev] [PATCH 1/5] eal/x86: define architecture specific rdtsc hz Jerin Jacob
2017-09-18 12:54 ` Burakov, Anatoly
2017-08-13 7:03 ` [dpdk-dev] [PATCH 2/5] eal/ppc64: " Jerin Jacob
2017-09-28 1:53 ` Chao Zhu
2017-08-13 7:03 ` [dpdk-dev] [PATCH 3/5] eal/armv7: " Jerin Jacob
2017-08-13 7:03 ` [dpdk-dev] [PATCH 4/5] eal/armv8: " Jerin Jacob
2017-08-15 3:35 ` Jianbo Liu
2017-08-13 7:03 ` [dpdk-dev] [PATCH 5/5] eal/timer: honor architecture specific rdtsc hz function Jerin Jacob
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