Intel® QuickAssist Technology (QAT) Async Mode Nginx

Copyright (C) Intel, Inc

Introduction

Nginx-test is a tool for testing whether Nginx can run normally. The tool supports both qat and dasync modes.

Run Nginx Basic Tests

Set the following environmental variables:

NGINX_SRC_DIR is the Nginx source code directory.
NGINX_INSTALL_DIR is the Nginx install directory.
QATZIP_SRC_DIR is the QATzip source code directory.
OPENSSL_SRC_DIR is the openssl source code directory.
OPENSSL_LIB is the openssl install directory.

Execute the Nginx test:

Choose one of the following commands to execute. Passing the 'qat' parameter means testing with the QATZip (https://github.com/intel/QATZip) and QAT engine (https://github.com/intel/QAT_Engine) loaded. Passing the 'dasync' parameter means testing with the OpenSSL built-in dasync engine loaded and no QATZip aceleration employed.

    ./nginx-test.sh qat

    ./nginx-test.sh dasync

View execution log If the result contains ‘skipped’, it means that the conditions required for the test are missing. If the result in the log is PASS, it means that all the scripts that satisfy the test are successfully tested, otherwise the test fails.

    vim nginx-test.log

nginx_qat_module

Any 3rd party OpenSSL engine modules can be integrated into this framework. By default, a reference module dasync_module is provided in src/engine/modules and a QAT module nginx_qat_module is provided in modules/nginx_qat_modules.

If the passed-in argument for the test is qat, the qat module 'ngx_ssl_engine_qat_module_for_test.so' needs to be loaded, and the 'qat_engine' block needs to be configured. If the passed-in argument for the test is dasync, just configure 'use_engine' directive as dasync. The variable parameters TEST_NGINX_SSL_ENGINE_MODULE and TEST_LOAD_MODULE in 'test-env.sh' change the configuration based on the parameters passed in.

Passing the 'qat' parameter:

   load_module modules/ngx_ssl_engine_qat_module.so;
   ...
   ssl_engine {
       use_engine qatengine;
       default_algorithms ALL;
           qat_engine {
               qat_offload_mode async;
               qat_notify_mode poll;
               qat_poll_mode heuristic;
           }
   }

Passing the 'dasync' parameter:

   ssl_engine {
        use_engine qat;
        ...
    }

For more details directives of nginx_qat_module, please refer to modules/nginx_qat_modules/README.

nginx_qatzip_module

This module is developed for accelerating GZIP compression with QATzip in Nginx dynamic module framework.

For more details directives of nginx_qatzip_module, please refer to modules/nginx_qatzip_module/README.

Using QATZip for compression:

   load_module modules/ngx_http_qatzip_filter_module.so;
   ...
   qatzip_sw no;

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