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authorC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 07:50:17 -0700
committerC.J. Collier <cjcollier@linuxfoundation.org>2016-06-14 12:17:54 -0700
commit97f17497d162afdb82c8704bf097f0fee3724b2e (patch)
tree1c6269614c0c15ffef8451c58ae8f8b30a1bc804 /doc/guides/prog_guide/profile_app.rst
parente04be89c2409570e0055b2cda60bd11395bb93b0 (diff)
Imported Upstream version 16.04
Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757 Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>
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+.. BSD LICENSE
+ Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+Profile Your Application
+========================
+
+Intel processors provide performance counters to monitor events.
+Some tools provided by Intel can be used to profile and benchmark an application.
+See the *VTune Performance Analyzer Essentials* publication from Intel Press for more information.
+
+For a DPDK application, this can be done in a Linux* application environment only.
+
+The main situations that should be monitored through event counters are:
+
+* Cache misses
+
+* Branch mis-predicts
+
+* DTLB misses
+
+* Long latency instructions and exceptions
+
+Refer to the
+`Intel Performance Analysis Guide <http://software.intel.com/sites/products/collateral/hpc/vtune/performance_analysis_guide.pdf>`_
+for details about application profiling.