From: Thomas Monjalon <thomas@monjalon.net>
To: gowrishankar.m@linux.vnet.ibm.com,
jerin.jacob@caviumnetworks.com, jianbo.liu@linaro.org,
sergio.gonzalez.monroy@intel.com, bruce.richardson@intel.com
Cc: dev@dpdk.org
Subject: [dpdk-dev] [PATCH 0/4] improve tsc frequency calibration
Date: Fri, 13 Oct 2017 02:02:43 +0200 [thread overview]
Message-ID: <20171013000247.4158-1-thomas@monjalon.net> (raw)
In-Reply-To: <cover.1506058385.git.gowrishankar.m@linux.vnet.ibm.com>
v3 changes:
- implement in .c files instead of exporting an inline arch function
- rename arch function from rte_rdtsc_arch_hz to get_tsc_freq_arch
- integrate x86 implementation in the series
- fix private EAL include in PPC implementation (not tested)
From: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
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 (3):
timer: honor arch-specific TSC frequency query
eal/armv8: implement arch-specific TSC freq query
eal/ppc64: implement arch-specific TSC freq query
Sergio Gonzalez Monroy (1):
eal/x86: implement arch-specific TSC freq query
lib/librte_eal/bsdapp/eal/Makefile | 1 +
lib/librte_eal/common/arch/arm/rte_cycles.c | 45 +++++++
.../ppc_64/rte_cycles.c} | 78 ++---------
.../{eal_common_timer.c => arch/x86/rte_cycles.c} | 143 ++++++++++++++-------
lib/librte_eal/common/eal_common_timer.c | 5 +-
lib/librte_eal/common/eal_private.h | 11 ++
lib/librte_eal/linuxapp/eal/Makefile | 1 +
7 files changed, 170 insertions(+), 114 deletions(-)
create mode 100644 lib/librte_eal/common/arch/arm/rte_cycles.c
copy lib/librte_eal/common/{eal_common_timer.c => arch/ppc_64/rte_cycles.c} (50%)
copy lib/librte_eal/common/{eal_common_timer.c => arch/x86/rte_cycles.c} (50%)
--
2.14.1
next prev parent reply other threads:[~2017-10-13 0:02 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-22 8:25 [dpdk-dev] [PATCH v2 0/5] " Gowrishankar
2017-09-22 8:25 ` [dpdk-dev] [PATCH v2 1/5] eal/x86: define architecture specific rdtsc hz Gowrishankar
2017-09-22 8:25 ` [dpdk-dev] [PATCH v2 2/5] eal/ppc64: " Gowrishankar
2017-10-12 22:20 ` Thomas Monjalon
2017-09-22 8:25 ` [dpdk-dev] [PATCH v2 3/5] eal/armv7: " Gowrishankar
2017-09-22 8:25 ` [dpdk-dev] [PATCH v2 4/5] eal/armv8: " Gowrishankar
2017-09-22 8:25 ` [dpdk-dev] [PATCH v2 5/5] eal/timer: honor architecture specific rdtsc hz function Gowrishankar
2017-10-11 17:36 ` Thomas Monjalon
2017-10-11 18:57 ` Jerin Jacob
2017-10-11 19:25 ` Thomas Monjalon
2017-10-12 8:48 ` Bruce Richardson
2017-10-12 10:12 ` Thomas Monjalon
2017-10-12 10:25 ` Bruce Richardson
2017-10-12 10:16 ` Jerin Jacob
2017-10-13 0:02 ` Thomas Monjalon [this message]
2017-10-13 0:02 ` [dpdk-dev] [PATCH 1/4] timer: honor arch-specific TSC frequency query Thomas Monjalon
2017-10-13 0:02 ` [dpdk-dev] [PATCH 2/4] eal/armv8: implement arch-specific TSC freq query Thomas Monjalon
2017-10-13 0:02 ` [dpdk-dev] [PATCH 3/4] eal/ppc64: " Thomas Monjalon
2017-10-13 0:02 ` [dpdk-dev] [PATCH 4/4] eal/x86: " Thomas Monjalon
2017-10-13 3:47 ` Stephen Hemminger
2017-10-13 7:30 ` Thomas Monjalon
2017-10-13 15:13 ` Stephen Hemminger
2017-10-13 15:17 ` Bruce Richardson
2017-10-13 3:21 ` [dpdk-dev] [PATCH 0/4] improve tsc frequency calibration Jerin Jacob
2017-10-13 11:08 ` Thomas Monjalon
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