Nov 10, 2013

PhpSysInfo loading slow on RaspberryPI (Linux Raspbian + Nginx + PHP5-fpm)

Default installation of PhpSysInfo on RaspberryPI takes a long time to load due some missing programs and hardware components.

My system info:


Hardware: RaspberryPI Model B with 512MB RAM
OS: Raspbian GNU/Linux 7
Nginx version: 1.2.1-2.2+wheezy1
PHP version: 5.4.4-14+deb7u5
PhpSysInfo version: 3.0.17-1

Enable debug mode in /etc/phpsysinfo/config.php

define('PSI_DEBUG', true);

Open http://yoursitephpsysinfo/xml.php

I found the following errors:

<Error Function="find_program(lsb_release)">
<![CDATA[
program not found on the machine ./xml.php on line 45 ./includes/output/class.WebpageXML.inc.php on line 138 in function run() ./includes/xml/class.XML.inc.php on line 456 in function getXml() ./includes/xml/class.XML.inc.php on line 435 in function _buildXml() ./includes/os/class.OS.inc.php on line 70 in function getSys() ./includes/os/class.Linux.inc.php on line 576 in function build() ./includes/os/class.Linux.inc.php on line 527 in function _distro() ./includes/class.CommonFunctions.inc.php on line 117 in function executeProgram( "lsb_release", "-a 2>/dev/null", "", true )
]]>
</Error>
<Error Function="/usr/bin/lspci">
<![CDATA[
pcilib: Cannot open /proc/bus/pci lspci: Cannot find any working access method. Return value: 1 ./xml.php on line 45 ./includes/output/class.WebpageXML.inc.php on line 138 in function run() ./includes/xml/class.XML.inc.php on line 456 in function getXml() ./includes/xml/class.XML.inc.php on line 435 in function _buildXml() ./includes/os/class.OS.inc.php on line 70 in function getSys() ./includes/os/class.Linux.inc.php on line 583 in function build() ./includes/os/class.Linux.inc.php on line 306 in function _pci() ./includes/class.Parser.inc.php on line 36 in function lspci() ./includes/class.CommonFunctions.inc.php on line 142 in function executeProgram( "lspci", "", "", true )
]]>
</Error>
<Error Function="find_program(lsscsi)">
<![CDATA[
program not found on the machine ./xml.php on line 45 ./includes/output/class.WebpageXML.inc.php on line 138 in function run() ./includes/xml/class.XML.inc.php on line 456 in function getXml() ./includes/xml/class.XML.inc.php on line 435 in function _buildXml() ./includes/os/class.OS.inc.php on line 70 in function getSys() ./includes/os/class.Linux.inc.php on line 585 in function build() ./includes/os/class.Linux.inc.php on line 367 in function _scsi() ./includes/class.CommonFunctions.inc.php on line 117 in function executeProgram( "lsscsi", "-c", "", true )
]]>
</Error>
<Error Function="file_exists(/proc/scsi/scsi)">
<![CDATA[
the file does not exist on your machine ./xml.php on line 45 ./includes/output/class.WebpageXML.inc.php on line 138 in function run() ./includes/xml/class.XML.inc.php on line 456 in function getXml() ./includes/xml/class.XML.inc.php on line 435 in function _buildXml() ./includes/os/class.OS.inc.php on line 70 in function getSys() ./includes/os/class.Linux.inc.php on line 585 in function build() ./includes/os/class.Linux.inc.php on line 367 in function _scsi() ./includes/class.CommonFunctions.inc.php on line 191 in function rfts( "/proc/scsi/scsi", "", 0, 4096, true )
]]>
</Error>

First, third and fourth error are because some programs are not present on the system, let's install them.

sudo apt-get install lsb-release lsscsi -y

Second error is due missing PCI bus on raspberryPI.

# lspci
pcilib: Cannot open /proc/bus/pci
lspci: Cannot find any working access method.

We can't do anything about that but disable that function in PhpSysInfo PHP code. Open the file /your/path/to/phpsyinfo/includes/class.Parser.inc.php and find the lspci function.

/**
     * parsing the output of lspci command
     *
     * @return Array
     */
    public static function lspci()
        {
        $arrResults = array();
        if (CommonFunctions::executeProgram("lspci", "", $strBuf, PSI_DEBUG)) {
            $arrLines = preg_split("/\n/", $strBuf, -1, PREG_SPLIT_NO_EMPTY);
            foreach ($arrLines as $strLine) {
                list($strAddr, $strName) = preg_split('/ /', trim($strLine), 2);
                $strName = preg_replace('/\(.*\)/', '', $strName);
                $dev = new HWDevice();
                $dev->setName($strName);
                $arrResults[] = $dev;
            }
        }
        return $arrResults;
    }

Change the code above to match the one bellow:

/**
     * parsing the output of lspci command
     *
     * @return Array
     */
    public static function lspci()
        {
        return array();
            $arrResults = array();
        if (CommonFunctions::executeProgram("lspci", "", $strBuf, PSI_DEBUG)) {
            $arrLines = preg_split("/\n/", $strBuf, -1, PREG_SPLIT_NO_EMPTY);
            foreach ($arrLines as $strLine) {
                list($strAddr, $strName) = preg_split('/ /', trim($strLine), 2);
                $strName = preg_replace('/\(.*\)/', '', $strName);
                $dev = new HWDevice();
                $dev->setName($strName);
                $arrResults[] = $dev;
            }
        }
        return $arrResults;
    }

Disable debug mode in phpsysinfo config, save, reload, drink beer.