Patchwork [dpdk-dev,v5,3/5] doc/guides/tools: add doc files

login
register
mail settings
Submitter Tomasz Jozwiak
Date Dec. 5, 2018, 8:47 a.m.
Message ID <1543999626-24262-4-git-send-email-tomaszx.jozwiak@intel.com>
Download mbox | patch
Permalink /patch/672681/
State New
Headers show

Comments

Tomasz Jozwiak - Dec. 5, 2018, 8:47 a.m.
Added:
 -  initial version of compression performance test
    description file.
 -  release note in release_18_11.rst

Updated index.rst file

Signed-off-by: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak@intel.com>
---
 MAINTAINERS                            |  5 +++
 doc/guides/rel_notes/release_18_11.rst |  5 +++
 doc/guides/tools/comp_perf.rst         | 81 ++++++++++++++++++++++++++++++++++
 doc/guides/tools/index.rst             |  1 +
 4 files changed, 92 insertions(+)
 create mode 100644 doc/guides/tools/comp_perf.rst

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index 71ba312..dd0c131 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1242,6 +1242,11 @@  M: Bernard Iremonger <bernard.iremonger@intel.com>
 F: app/test-pmd/
 F: doc/guides/testpmd_app_ug/
 
+Compression performance test application
+M: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
+F: app/test-compress-perf/
+F: doc/guides/tools/comp_perf.rst
+
 Crypto performance test application
 M: Declan Doherty <declan.doherty@intel.com>
 F: app/test-crypto-perf/
diff --git a/doc/guides/rel_notes/release_18_11.rst b/doc/guides/rel_notes/release_18_11.rst
index 65bab55..e6652a5 100644
--- a/doc/guides/rel_notes/release_18_11.rst
+++ b/doc/guides/rel_notes/release_18_11.rst
@@ -352,6 +352,11 @@  New Features
   additional command-line parameter values from the ``DPDK_TEST_PARAMS``
   environment variable to make this application easier to use.
 
+* **Added a compression performance test tool.**
+
+   Added a new performance test tool to test the compressdev PMD. The tool tests
+   compression ratio and compression throughput. Dynamic compression test is not
+   supported yet.
 
 API Changes
 -----------
diff --git a/doc/guides/tools/comp_perf.rst b/doc/guides/tools/comp_perf.rst
new file mode 100644
index 0000000..d343408
--- /dev/null
+++ b/doc/guides/tools/comp_perf.rst
@@ -0,0 +1,81 @@ 
+..  SPDX-License-Identifier: BSD-3-Clause
+    Copyright(c) 2018 Intel Corporation.
+
+dpdk-test-compress-perf Tool
+============================
+
+The ``dpdk-test-compress-perf`` tool is a Data Plane Development Kit (DPDK)
+utility that allows measuring performance parameters of PMDs available in the
+compress tree. The tool reads the data from a file (--input-file),
+dumps all the file into a buffer and fills out the data of input mbufs,
+which are passed to compress device with compression operations.
+Then, the output buffers are fed into the decompression stage, and the resulting
+data is compared against the original data (verification phase). After that,
+a number of iterations are performed, compressing first and decompressing later,
+to check the throughput rate
+(showing cycles/iteration, cycles/Byte and Gbps, for compression and decompression).
+
+.. Note::
+
+	if the max-num-sgl-segs x seg_sz > input size then segments number in
+	the chain will be lower than value passed into max-num-sgl-segs.
+
+
+Limitations
+~~~~~~~~~~~
+
+* Stateful operation and dynamic compression are not supported in this version.
+
+
+Command line options
+--------------------
+
+ ``--driver-name NAME``: compress driver to use
+
+ ``--input-file NAME``: file to compress and decompress
+
+ ``--extended-input-sz N``: extend file data up to this size (default: no extension)
+
+ ``--seg-sz N``: size of segment to store the data (default: 2048)
+
+ ``--burst-sz N``: compress operation burst size
+
+ ``--pool-sz N``: mempool size for compress operations/mbufs (default: 8192)
+
+ ``--max-num-sgl-segs N``: maximum number of segments for each mbuf (default: 16)
+
+ ``--num-iter N``: number of times the file will be compressed/decompressed (default: 10000)
+
+ ``--operation [comp/decomp/comp_and_decomp]``: perform test on compression, decompression or both operations
+
+ ``--huffman-enc [fixed/default]``: Huffman encoding (default: fixed)
+
+ ``--compress-level N``: compression level, which could be a single value, list or range (default: range between 1 and 9)
+
+ ``--window-sz N``: base two log value of compression window size (default: max supported by PMD)
+
+ ``-h``: prints this help
+
+
+Compiling the Tool
+------------------
+
+**Step 1: PMD setting**
+
+The ``dpdk-test-compress-perf`` tool depends on compression device drivers PMD which
+can be disabled by default in the build configuration file ``common_base``.
+The compression device drivers PMD which should be tested can be enabled by setting e.g.::
+
+   CONFIG_RTE_LIBRTE_PMD_ISAL=y
+
+
+Running the Tool
+----------------
+
+The tool has a number of command line options. Here is the sample command line:
+
+.. code-block:: console
+
+   ./build/app/dpdk-test-compress-perf  -l 4 -- --driver-name compress_qat --input-file test.txt --seg-sz 8192
+    --compress-level 1:1:9 --num-iter 10 --extended-input-sz 1048576  --max-num-sgl-segs 16 --huffman-enc fixed
+
diff --git a/doc/guides/tools/index.rst b/doc/guides/tools/index.rst
index a6e2c4c..24235ba 100644
--- a/doc/guides/tools/index.rst
+++ b/doc/guides/tools/index.rst
@@ -42,3 +42,4 @@  DPDK Tools User Guides
     testbbdev
     cryptoperf
     testeventdev
+    comp_perf