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Honnappa Nagarahalli aac2b6a78d app/testpmd: use clock time in throughput calculation 
The throughput calculation requires a counter that measures
passing of time. However, the kernel saves and restores the PMU
state when a thread is unscheduled and scheduled. This ensures
that the PMU cycles are not counted towards a thread that is
not scheduled. Hence, when RTE_ARM_EAL_RDTSC_USE_PMU is enabled,
the PMU cycles do not represent the passing of time.
This results in incorrect calculation of throughput numbers.
Use clock_gettime system call to calculate the time passed since
last call.

Bugzilla ID: 450
Fixes: 0e10698030 ("app/testpmd: show throughput in port stats")
Cc: stable@dpdk.org

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Phil Yang <phil.yang@arm.com>
Tested-by: Ali Alnubani <alialnu@mellanox.com>
2020-07-07 23:38:28 +02:00
.ci ci: reduce examples in static builds 2020-04-17 23:34:08 +02:00
app app/testpmd: use clock time in throughput calculation 2020-07-07 23:38:28 +02:00
buildtools build: remove special versioning for non stable libraries 2020-07-07 12:48:25 +02:00
config net/bnxt: support EEM system memory 2020-07-07 23:38:27 +02:00
devtools devtools: add acronyms in dictionary for commit checks 2020-07-07 23:38:26 +02:00
doc doc: update release notes for bnxt 2020-07-07 23:38:27 +02:00
drivers net/ice: enable additional input set for RSS hash 2020-07-07 23:38:28 +02:00
examples examples/ipsec-secgw: add per-core packet statistics 2020-07-08 00:15:35 +02:00
kernel kernel/linux: error out on module build failure 2020-05-19 17:59:57 +02:00
lib vhost: introduce async enqueue for split ring 2020-07-07 23:38:28 +02:00
license eal: move OS-specific sub-directories 2020-03-31 13:08:55 +02:00
mk build: remove special versioning for non stable libraries 2020-07-07 12:48:25 +02:00
usertools usertools: fix telemetry user socket path 2020-06-25 01:10:12 +02:00
.editorconfig devtools: add EditorConfig file 2020-02-22 21:05:22 +01:00
.gitattributes improve git diff 2016-11-13 15:25:12 +01:00
.gitignore doc: add feature matrix table for bbdev 2020-04-19 22:34:26 +02:00
.travis.yml version: 20.08-rc0 2020-05-27 11:37:33 +02:00
ABI_VERSION version: 20.08-rc0 2020-05-27 11:37:33 +02:00
GNUmakefile test: move to app directory 2019-02-26 15:29:27 +01:00
MAINTAINERS maintainers: update for vmbus 2020-07-07 23:38:26 +02:00
Makefile remove blank lines at end of file 2019-11-26 00:12:08 +01:00
meson_options.txt trace: introduce new subsystem 2020-04-23 15:39:06 +02:00
meson.build build: check AVX512 rather than binutils version 2020-07-05 21:32:40 +02:00
README license: introduce SPDX identifiers 2018-01-04 22:41:38 +01:00
VERSION version: 20.08-rc0 2020-05-27 11:37:33 +02:00

README 

DPDK is a set of libraries and drivers for fast packet processing.
It supports many processor architectures and both FreeBSD and Linux.

The DPDK uses the Open Source BSD-3-Clause license for the core libraries
and drivers. The kernel components are GPL-2.0 licensed.

Please check the doc directory for release notes,
API documentation, and sample application information.

For questions and usage discussions, subscribe to: users@dpdk.org
Report bugs and issues to the development mailing list: dev@dpdk.org