amergin’s gists

amergin / variance-reduce2.js

Created December 31, 2014 16:33

	this.getReducedSTD2 = function(dimensionGroup, variable) {
	// see https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance
	var reduceAdd = function (p, v) {
	var value = +v.variables[variable];
	if( _.isNaN(value) ) {
	//pass
	}
	else {
	if( p.n === 0 ) {
	p.k = value;

amergin / variance-reduce.js

Created December 31, 2014 16:30

	this.getReducedSTD = function(dimensionGroup, variable) {
	// see https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Decremental_algorithm
	var reduceAdd = function (p, v) {
	var obj = p;
	var value = +v.variables[variable];
	if( _.isNaN(value) ) {
	//pass
	} else {
	obj.n = obj.n + 1;
	var oldM2 = obj.M2;

amergin / dc.problem.seriesChart.js

Created December 30, 2014 16:50

Problem with DC.js series chart grouping and sorting

	var createSVG = function($scope, config) {
	var getLabel = function(variable, circle) {
	return variable + " (" + circle.name() + ")";
	};

	var getLabels = function() {
	var ret = [];
	_.each(config.groups, function(group, name) {
	_.each( $scope.filterOnSet(group, name).all(), function(obj) {
	var circle = obj.key.circle;

amergin / angular-packery.js

Created August 6, 2014 00:24

Angular-masonry fork for Packery.js

	/*!
	* angular-packery
	* Forked from angular-masonry (Pascal Hartig, weluse GmbH, http://weluse.de/)
	*/
	(function () {
	'use strict';
	angular.module('wu.packery', []).controller('PackeryCtrl', [
	'$scope',
	'$element',
	'$timeout',

amergin / vmstat_loading.txt

Created January 1, 2013 18:23

vmstat while warming the graph.

	procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
	r b swpd free buff cache si so bi bo in cs us sy id wa st
	0 0 175424 7509264 656956 17513120 0 0 38 20 0 0 1 1 98 0 0
	1 0 175424 7487780 656968 17517780 0 0 1651 0 5169 22462 5 4 88 4 0
	1 0 175424 7450576 656976 17518080 0 0 5 156 7185 24458 21 3 76 0 0
	1 0 175424 7453236 656976 17518080 0 0 0 168 5435 22729 12 4 83 0 0
	1 0 175424 7428040 656984 17518080 0 0 0 4 5201 20206 13 3 84 0 0
	9 0 175424 7370016 656984 17518080 0 0 0 12 7874 21739 25 4 71 0 0
	3 0 175424 7312612 656988 17518084 0 0 1 11 7502 22395 22 4 73 0 1
	2 0 175424 7277488 656988 17518084 0 0 0 47 7545 23143 26 5 69 0 1

amergin / vmstat_idle_3min.txt

Created January 1, 2013 18:22

timeout 3m vmstat 3 > ~/vmstat_loading_3min.txt

	procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
	r b swpd free buff cache si so bi bo in cs us sy id wa st
	0 0 175424 6648152 656812 17511332 0 0 38 20 0 0 1 1 98 0 0
	1 0 175424 6648136 656812 17511336 0 0 0 4 3436 21147 1 2 97 0 0
	0 0 175424 6648136 656816 17511336 0 0 0 11 3361 21589 1 2 97 0 0
	0 0 175424 6648136 656816 17511336 0 0 0 5 3418 21793 1 2 97 0 0
	0 0 175424 6648136 656816 17511336 0 0 0 4 3687 21588 1 2 97 0 0
	0 0 175424 6648136 656816 17511344 0 0 3 16 3599 21750 1 2 97 0 0
	0 0 175424 6647988 656820 17511348 0 0 0 21 3850 22033 1 2 97 0 0
	0 0 175424 6647988 656820 17511348 0 0 0 3 3926 21425 1 2 96 0 0

amergin / messages.log

Created December 31, 2012 00:35

messages.log, relevant parts

	2012-12-31 00:23:14.528+0000 INFO [o.n.k.i.DiagnosticsManager]: --- INITIALIZED diagnostics START ---
	2012-12-31 00:23:14.529+0000 INFO [o.n.k.i.DiagnosticsManager]: Neo4j Kernel properties:
	2012-12-31 00:23:14.532+0000 INFO [o.n.k.i.DiagnosticsManager]: neostore.propertystore.db.mapped_memory=3000M
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: cache_type=gcr
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: read_only=true
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: use_memory_mapped_buffers=true
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: neostore.nodestore.db.mapped_memory=50M
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: ha.pull_interval=10
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: neostore.relationshipstore.db.mapped_memory=1200M
	2012-12-31 00:23:14.533+0000 INFO [o.n.k.i.DiagnosticsManager]: neostore.propertystore.db.strings.mapped_memory=1000M

amergin / dump_while_traversing_highCPU.txt

Created December 31, 2012 00:32

jstack dump while high-CPU traversal.

	2012-12-31 02:28:04
	Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.10-b01 mixed mode):

	"1964274118@qtp-2058324786-4" prio=10 tid=0x00007ff2a8014800 nid=0x6429 in Object.wait() [0x00007ff271190000]
	java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000005337d6da0> (a org.mortbay.thread.QueuedThreadPool$PoolThread)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:626)
	- locked <0x00000005337d6da0> (a org.mortbay.thread.QueuedThreadPool$PoolThread)

amergin / dump_after_warming_idle.txt

Created December 31, 2012 00:31

jstack after warming the cache, at idle, CPU ~33%.

	2012-12-31 02:25:57
	Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.10-b01 mixed mode):

	"Attach Listener" daemon prio=10 tid=0x00007ff318003800 nid=0x63fe waiting on condition [0x0000000000000000]
	java.lang.Thread.State: RUNNABLE

	"712944945@qtp-2058324786-3" prio=10 tid=0x00007ff2a8003800 nid=0x63d0 in Object.wait() [0x00007ff25502e000]
	java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00000005202a9ef0> (a org.mortbay.thread.QueuedThreadPool$PoolThread)

amergin / gist:4262270

Created December 11, 2012 21:27

Cypher branching example

	START a = node(137059)
	MATCH a-[rel]->b
	WITH a,b,rel
	ORDER BY rel.pvalue DESC LIMIT 5
	MATCH b-[rel2]->c
	WITH a,b,c,rel,rel2
	ORDER BY rel2.pvalue DESC LIMIT 5
	RETURN a.label?, rel.pvalue, b.label?, b.source, rel2.pvalue, c.label?, c.source;

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