massiv performance issues after switching "show xx entries" using ajax sourced data

puseidr

i'm using Datatables v1.9 with ajax sourced data (generating via php) which generates ~700 rows.

before modifying the options for "show xx entries" i could smooth switch between e.g. 10 entries per page (epp) and 100 epp. after adding the options for all entries i realized a massiv issue, when i switch from 10 epp to 50, 100 or all epp there is no lag, but then i switch from all to 100,50, or 10 epp there is a big lag, the browser-tab freezes and it takes some seconds to continue. the with ~700 entries it took 9 seconds to switch from all epp to 10 epp

my js is this:

$(document).ready(function() {
    $('#devices').DataTable( {
        "processing": true,
        "ajax": {
            'type': 'POST',
            'url': 'inc/get_devices.php',
            'dataSrc': 'data'
        },
        'deferRender': true,
        'lengthMenu': [ [10, 25, 50, 100, 200, -1], [10, 25, 50, 100, 200, 'All'] ],
        initComplete: function () {
            this.api().columns('.select-filter').every( function () {
                var column = this;
                var select = $('<select class="form-control"><option value="">all</option></select>')
                    .appendTo( $(column.footer()).empty() )
                    .on( 'change', function () {
                        var val = $.fn.dataTable.util.escapeRegex(
                            $(this).val()
                        );
                        column
                            .search( val ? '^'+val+'$' : '', true, false )
                            .draw();
                    } );
                column.data().unique().sort().each( function ( d, j ) {
                    select.append( '<option value="'+d+'">'+d+'</option>' )
                } );
            } );
        

        }

    } );
} );

allan

Per the forum rules, please link to a test case showing the issue.

Allan

puseidr

while building a testcase i found out, its not a datatable problem, it seems to a problem on my hole website...

in the testcase-build with bootstrap and datatables it works fine, but in my website there is the issue with the freeze.. i need to review my code

puseidr

thats awkward :-(
it was a freaking browser-plugin (Kaspersky Protection) which caused the issue..

allan

Heh - so it goes. Good to hear you got it sorted out!

Allan