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/***********************************************************************
* Utility functions for stats
**********************************************************************/
var gras_extract_block_ids = function(point)
{
var ids = new Array();
$('block', point).each(function()
{
ids.push($(this).attr('id'));
});
return ids;
}
var gras_extract_total_items = function(point, id)
{
var block_data = $('block[id="' + id + '"]', point);
var total_items = 0;
$('items_consumed,items_produced', block_data).each(function()
{
total_items += parseInt($(this).text());
});
return total_items;
}
var gras_extract_throughput_delta = function(p0, p1, id)
{
var d0 = $('block[id="' + id + '"]', p0);
var d1 = $('block[id="' + id + '"]', p1);
var t0 = parseInt($('stats_time', d0).text());
var t1 = parseInt($('stats_time', d1).text());
var tps = parseInt($('tps', d0).text());
var items0 = gras_extract_total_items(p0, id);
var items1 = gras_extract_total_items(p1, id);
return ((items1-items0)*tps)/(t1-t0);
}
var gras_extract_throughput = function(point, id)
{
var block_data = $('block[id="' + id + '"]', point);
var start_time = parseInt($('start_time', block_data).text());
var stats_time = parseInt($('stats_time', block_data).text());
var tps = parseInt($('tps', block_data).text());
var total_items = gras_extract_total_items(point, id);
return (total_items*tps)/(stats_time-start_time);
}
var gras_update_throughput_chart = function(history)
{
if (history.length < 2) return;
var ids = gras_extract_block_ids(history[0]);
var data_set = [['Throughput'].concat(ids)];
for (var i = Math.max(history.length-10, 1); i < history.length; i++)
{
var row = new Array();
row.push(i.toString());
for (var j = 0; j < ids.length; j++)
{
row.push(gras_extract_throughput_delta(history[i-1], history[i], ids[j])/1e6);
}
data_set.push(row);
}
var data = google.visualization.arrayToDataTable(data_set);
var options = {
title: 'Throughput per block over time',
vAxis: {title: "rate (MIps)"},
hAxis: {title: "time (seconds)"}
};
var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
/***********************************************************************
* Query stats
**********************************************************************/
var gras_query_stats = function(history)
{
$.ajax({
type: "GET",
async: true,
url: "/stats.xml",
dataType: "xml",
success: function(xml)
{
if ($(xml, "gras_stats") !== undefined)
{
history.push(xml);
gras_update_throughput_chart(history);
}
var onceHandle = window.setTimeout(function() {
gras_query_stats(history);
}, 1000);
}
});
}
/***********************************************************************
* Init
**********************************************************************/
var gras_stats_main = function()
{
var history = new Array();
gras_query_stats(history);
}
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