From: ibetts <ian.betts@intel.com>
To: dev@dpdk.org
Cc: Ian Betts <ian.betts@intel.com>
Subject: [dpdk-dev] [PATCH v1 0/5] examples: add performance thread example
Date: Wed, 30 Sep 2015 15:29:43 +0100 [thread overview]
Message-ID: <1443623388-29104-1-git-send-email-ian.betts@intel.com> (raw)
From: Ian Betts <ian.betts@intel.com>
Performance thread example application
This example comprises layer 3 forwarding derivative intended to
facilitate characterization of performance with different
threading models, specifically:-
1. EAL threads running on different physical cores
2. EAL threads running on the same physical core
3. Lightweight threads running in an EAL thread
Purpose and justification
Since dpdk 2.0 it has been possible to assign multiple EAL threads to
a physical core ( case 2 above ).
Currently no example application has focused on demonstrating the
performance constraints of differing threading models.
Whilst purpose built applications that fully comprehend the DPDK
single threaded programming model will always yield superior
performance, the desire to preserve ROI in legacy code written for
multithreaded operating environments makes lightweight threads ( case
3 above ) worthy of consideration.
As well as aiding with legacy code reuse, it is anticipated that
lightweight threads will make it possible to scale a multithreaded
application with fine granularity allowing an application to more
easily take advantage of headroom on EAL cores, or conversely occupy
more cores, as dictated by system load.
To explore performance with lightweight threads a simple cooperative
scheduler subsystem is being included in this example application.
If the expected benefits and use cases prove to be of value, it is
anticipated that this lightweight thread subsystem would become a
library in some future DPDK release.
A simple pthread shim in the form of a hello world example is also
included.
Ian Betts (5):
doc: add performance-thread sample application guide
examples: add cooperative scheduler subsytem for performance-thread
app
examples: add l3fwd-thread in performance-thread sample app
examples: add pthread-shim in performance-thread sample app
config: add build files for performance-thread-app
config/common_linuxapp | 6 +
config/defconfig_i686-native-linuxapp-gcc | 6 +
config/defconfig_i686-native-linuxapp-icc | 6 +
config/defconfig_x86_x32-native-linuxapp-gcc | 6 +
doc/guides/rel_notes/release_2_2.rst | 6 +
doc/guides/sample_app_ug/index.rst | 1 +
doc/guides/sample_app_ug/performance_thread.rst | 1221 +++++++
examples/Makefile | 1 +
.../performance-thread/common/arch/x86/atomic.h | 60 +
examples/performance-thread/common/arch/x86/ctx.c | 66 +
examples/performance-thread/common/arch/x86/ctx.h | 57 +
examples/performance-thread/common/common.mk | 40 +
examples/performance-thread/common/lthread.c | 528 +++
examples/performance-thread/common/lthread.h | 99 +
examples/performance-thread/common/lthread_api.h | 822 +++++
examples/performance-thread/common/lthread_cond.c | 228 ++
examples/performance-thread/common/lthread_cond.h | 77 +
examples/performance-thread/common/lthread_diag.c | 315 ++
examples/performance-thread/common/lthread_diag.h | 129 +
.../performance-thread/common/lthread_diag_api.h | 295 ++
examples/performance-thread/common/lthread_int.h | 212 ++
examples/performance-thread/common/lthread_mutex.c | 244 ++
examples/performance-thread/common/lthread_mutex.h | 52 +
.../performance-thread/common/lthread_objcache.h | 160 +
examples/performance-thread/common/lthread_pool.h | 338 ++
examples/performance-thread/common/lthread_queue.h | 303 ++
examples/performance-thread/common/lthread_sched.c | 644 ++++
examples/performance-thread/common/lthread_sched.h | 152 +
examples/performance-thread/common/lthread_timer.h | 47 +
examples/performance-thread/common/lthread_tls.c | 242 ++
examples/performance-thread/common/lthread_tls.h | 64 +
examples/performance-thread/l3fwd-thread/Makefile | 57 +
examples/performance-thread/l3fwd-thread/main.c | 3355 ++++++++++++++++++++
examples/performance-thread/pthread_shim/Makefile | 61 +
examples/performance-thread/pthread_shim/main.c | 287 ++
.../performance-thread/pthread_shim/pthread_shim.c | 717 +++++
.../performance-thread/pthread_shim/pthread_shim.h | 113 +
37 files changed, 11017 insertions(+)
create mode 100644 doc/guides/sample_app_ug/performance_thread.rst
create mode 100644 examples/performance-thread/common/arch/x86/atomic.h
create mode 100644 examples/performance-thread/common/arch/x86/ctx.c
create mode 100644 examples/performance-thread/common/arch/x86/ctx.h
create mode 100644 examples/performance-thread/common/common.mk
create mode 100644 examples/performance-thread/common/lthread.c
create mode 100644 examples/performance-thread/common/lthread.h
create mode 100644 examples/performance-thread/common/lthread_api.h
create mode 100644 examples/performance-thread/common/lthread_cond.c
create mode 100644 examples/performance-thread/common/lthread_cond.h
create mode 100644 examples/performance-thread/common/lthread_diag.c
create mode 100644 examples/performance-thread/common/lthread_diag.h
create mode 100644 examples/performance-thread/common/lthread_diag_api.h
create mode 100644 examples/performance-thread/common/lthread_int.h
create mode 100644 examples/performance-thread/common/lthread_mutex.c
create mode 100644 examples/performance-thread/common/lthread_mutex.h
create mode 100644 examples/performance-thread/common/lthread_objcache.h
create mode 100644 examples/performance-thread/common/lthread_pool.h
create mode 100644 examples/performance-thread/common/lthread_queue.h
create mode 100644 examples/performance-thread/common/lthread_sched.c
create mode 100644 examples/performance-thread/common/lthread_sched.h
create mode 100644 examples/performance-thread/common/lthread_timer.h
create mode 100644 examples/performance-thread/common/lthread_tls.c
create mode 100644 examples/performance-thread/common/lthread_tls.h
create mode 100644 examples/performance-thread/l3fwd-thread/Makefile
create mode 100644 examples/performance-thread/l3fwd-thread/main.c
create mode 100644 examples/performance-thread/pthread_shim/Makefile
create mode 100644 examples/performance-thread/pthread_shim/main.c
create mode 100644 examples/performance-thread/pthread_shim/pthread_shim.c
create mode 100644 examples/performance-thread/pthread_shim/pthread_shim.h
--
1.9.3
next reply other threads:[~2015-09-30 14:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-30 14:29 ibetts [this message]
2015-09-30 14:29 ` [dpdk-dev] [PATCH v1 1/5] doc: add performance-thread sample application guide ibetts
2015-09-30 14:29 ` [dpdk-dev] [PATCH v1 2/5] examples: add cooperative scheduler subsytem for performance-thread app ibetts
2015-09-30 14:29 ` [dpdk-dev] [PATCH v1 3/5] examples: add l3fwd-thread in performance-thread sample app ibetts
2015-09-30 14:29 ` [dpdk-dev] [PATCH v1 4/5] examples: add pthread-shim " ibetts
2015-09-30 14:29 ` [dpdk-dev] [PATCH v1 5/5] config: add build files for performance-thread ibetts
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