view auto/summary @ 7155:29e9571b1989

Gzip: support for a zlib variant from Intel. A zlib variant from Intel as available from https://github.com/jtkukunas/zlib uses 64K hash instead of scaling it from the specified memory level, and also uses 16-byte padding in one of the window-sized memory buffers, and can force window bits to 13 if compression level is set to 1 and appropriate compile options are used. As a result, nginx complained with "gzip filter failed to use preallocated memory" alerts. This change improves deflate_state allocation detection by testing that items is 1 (deflate_state is the only allocation where items is 1). Additionally, on first failure to use preallocated memory we now assume that we are working with the Intel's modified zlib, and switch to using appropriate preallocations. If this does not help, we complain with the usual alerts. Previous version of this patch was published at http://mailman.nginx.org/pipermail/nginx/2014-July/044568.html. The zlib variant in question is used by default in ClearLinux from Intel, see http://mailman.nginx.org/pipermail/nginx-ru/2017-October/060421.html, http://mailman.nginx.org/pipermail/nginx-ru/2017-November/060544.html.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 18 Nov 2017 04:03:27 +0300
parents 9eefb38f0005
children 0b5f12d5c531
line wrap: on
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# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


echo
echo "Configuration summary"


if [ $USE_THREADS = YES ]; then
    echo "  + using threads"
fi

if [ $USE_PCRE = DISABLED ]; then
    echo "  + PCRE library is disabled"

else
    case $PCRE in
        YES)   echo "  + using system PCRE library" ;;
        NONE)  echo "  + PCRE library is not used" ;;
        *)     echo "  + using PCRE library: $PCRE" ;;
    esac
fi

case $OPENSSL in
    YES)   echo "  + using system OpenSSL library" ;;
    NONE)  echo "  + OpenSSL library is not used" ;;
    *)     echo "  + using OpenSSL library: $OPENSSL" ;;
esac

case $ZLIB in
    YES)   echo "  + using system zlib library" ;;
    NONE)  echo "  + zlib library is not used" ;;
    *)     echo "  + using zlib library: $ZLIB" ;;
esac

case $NGX_LIBATOMIC in
    YES)   echo "  + using system libatomic_ops library" ;;
    NO)    ;; # not used
    *)     echo "  + using libatomic_ops library: $NGX_LIBATOMIC" ;;
esac

echo


cat << END
  nginx path prefix: "$NGX_PREFIX"
  nginx binary file: "$NGX_SBIN_PATH"
  nginx modules path: "$NGX_MODULES_PATH"
  nginx configuration prefix: "$NGX_CONF_PREFIX"
  nginx configuration file: "$NGX_CONF_PATH"
  nginx pid file: "$NGX_PID_PATH"
END

if test -n "$NGX_ERROR_LOG_PATH"; then
    echo "  nginx error log file: \"$NGX_ERROR_LOG_PATH\""
else
    echo "  nginx logs errors to stderr"
fi

cat << END
  nginx http access log file: "$NGX_HTTP_LOG_PATH"
  nginx http client request body temporary files: "$NGX_HTTP_CLIENT_TEMP_PATH"
END

if [ $HTTP_PROXY = YES ]; then
    echo "  nginx http proxy temporary files: \"$NGX_HTTP_PROXY_TEMP_PATH\""
fi

if [ $HTTP_FASTCGI = YES ]; then
    echo "  nginx http fastcgi temporary files: \"$NGX_HTTP_FASTCGI_TEMP_PATH\""
fi

if [ $HTTP_UWSGI = YES ]; then
    echo "  nginx http uwsgi temporary files: \"$NGX_HTTP_UWSGI_TEMP_PATH\""
fi

if [ $HTTP_SCGI = YES ]; then
    echo "  nginx http scgi temporary files: \"$NGX_HTTP_SCGI_TEMP_PATH\""
fi

echo "$NGX_POST_CONF_MSG"