LagMeter

Table of Contents

Lets you check the server lag, in ticks-per-second.

Bukkit version does not matter for this plugin.

Description

A lot of plugins tell you that something happens "every X seconds, depending on lag." That's because when the server is overworked, there are less than 20 ticks per second. This plugin will measure the number of ticks per second, and output it on your screen as a "Lag Meter." The plugin can also output the amount of memory free, alert those with a specific permission node when the ticks per second or free RAM goes down too far, and even measure the server's ping to google.com.

Tutorials and Reviews

LagMeter 1.9.3: Review By: UltiByte

LagMeter 0.1: Review By: BrandonHopkins

LagMeter 0.1: Review By: ValBGaming
Some of them are a little out of date, but you get the idea.

Download

CI/build (Jenkins) server
You can always pick up the latest compiled version of LagMeter on my CI server. Note that BukkitDev doesn't warrant the safety of these builds, etc, but it's all pulled from GitHub anyways, so you could compile it yourself or look at the commits. Lagmeter is more stable than Lagmeter-bleed.

Jenkins: latest builds

Stable
Version: 1.17.0
Build date: 3 March 2016

BukkitDev Download: Latest Build

Javadocs
Version: 1.15.0
Build date: 23 November 2013

Dropbox Download (zipped; standard doclet)

Source Code

GitHub: TheLunarFrog's Source

GitHub: Original Source by DemmyDemon (v.0.4)

Bugs and Feature Requests

Bug reports & Feature Requests

Features

Simple, minimum-fuzz installation
Configurable without drowning you in options
Checks the server performance
Ability to check the ping between the server and Google.com
When someone says "GAH! LAG!", you can /lag, and tell them "Dude, it's your computer sucking."
Supports Bukkit's built-in permissions system, for example via [the official plugin](http://forums.bukkit.org/threads/permissionsbukkit-official-default-groups-plugin-1000.26785/)
Support for the "old-school" Permissions, as well as PermissionsEX
Logging of the lag, if you want it.
Logging of players online, with the above, if wanted.
Suggestions?

Change Log

Commands & Permissions

Configuration Explanation

Configuration

Example output:

[####################] 20.0 TPS

...or if your server isn't doing so hot...

[##########__________] 10.0 TPS

Comments

TheLunarFrog
- Location: Brecksville, Ohio, USA
- Join Date: 4/18/2010
- Posts: 255
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#198 TheLunarFrog

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Posted Oct 21, 2012
@TeamCobalt I ignore feature requests that are not tickets.

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_ForgeUser8882087

Join Date: 5/12/2012
Posts: 227
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#197 Posted Oct 21, 2012

add this:

sender.sendMessage("Loaded chunks:");
for(World world : Bukkit.getServer().getWorlds())
{
   String chunks = String.valueOf(world.getLoadedChunks().length);
   sender.sendMessage(ChatColor.AQUA + world.getName() + ": " + chunks + " loaded.");
}

_ForgeUser7479931
- Join Date: 9/1/2011
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#196 _ForgeUser7479931

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Posted Oct 19, 2012
hello,

is it possible to implement /reload function into this plugin? To be configurable if server is below 10TPs for 3-4 minutes to trigger /reload ?

And /reload toggle too?

I know its diagnostic plugin, but when its that great so far, is it possible to add this feature too?

many thnx in advance :)

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TheLunarFrog
- Location: Brecksville, Ohio, USA
- Join Date: 4/18/2010
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#195 TheLunarFrog

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Posted Oct 17, 2012
@TipTricky

It looks like you may have negated that permission node (using - -lagmeter.* or similar). This shouldn't happen; every player has access to /lag by default. Using permissions doesn't usually change this. Also, if you're opped, you have access anyways so it looks like you may have configured pex wrong.

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_ForgeUser8845295
- Join Date: 5/4/2012
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#194 _ForgeUser8845295

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Posted Oct 17, 2012
Using permissionsex or PEX and i gave my self the permissions to use the lagmeter.* permission and i am unable to type /lag it says permission lagmeter.command.lag was denied did i miss something

Last edited by _ForgeUser8845295: Oct 17, 2012

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TheLunarFrog
- Location: Brecksville, Ohio, USA
- Join Date: 4/18/2010
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#193 TheLunarFrog

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Posted Oct 16, 2012
@TeamCobalt

What might you mean by this?

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_ForgeUser8882087
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#192 _ForgeUser8882087

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Posted Oct 13, 2012
automessage support wiht a for loop?

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TheLunarFrog
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#191 TheLunarFrog

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Posted Oct 13, 2012
@andrewkm

Works fine for me. Oops, I noted it in the wrong area. It should be at the very top of the file with no spaces grouped with these:

useAverage: true averageLength: 10 interval: 40
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andrewecc
- Join Date: 5/22/2011
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#190 andrewecc

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Posted Oct 12, 2012
Lagmeter #43 displayEntitiesInLagCmds: false doesnt actually make it false.

bug ^

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TheLunarFrog
- Location: Brecksville, Ohio, USA
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#189 TheLunarFrog

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Posted Oct 12, 2012
1.10.0 is out now. Includes functioning lag/mem alerts and entity counts per world (for every world you may have), with a cumulative total. Also one bug fix: setting the log timer now works (with thanks to Southpaw018 for his pull request - I didn't even know this bug existed).

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_ForgeUser8075891
- Join Date: 12/14/2011
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#188 _ForgeUser8075891

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Posted Oct 8, 2012
For some reason, when doing /lag or /lm i'm getting [INFO] LagMeter just loaded, please wait for polling. the whole time (using LagMeter 1.9.3 @ CB RB 1.3.2-R1.0)

edit: okay, i've found what was causing it (an update of iChat: v2.60).
I've already informed the developer so i guess its an incompatibility-issue.

Last edited by _ForgeUser8075891: Oct 8, 2012

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TheLunarFrog
- Location: Brecksville, Ohio, USA
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#187 TheLunarFrog

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Posted Oct 2, 2012
@Karnekdo

Your comment is invalid, at least give a reason. Don't try to go around and say derogatory things about random plugins. Deleted.

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_ForgeUser8391715
- Join Date: 2/8/2012
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#186 _ForgeUser8391715

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Posted Oct 2, 2012
Why?

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_ForgeUser8391715
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#184 _ForgeUser8391715

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Posted Sep 21, 2012
Ok. Stood 2 Minutes at 6.0 TPS. no message, no command

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_ForgeUser8391715
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#183 _ForgeUser8391715

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Posted Sep 21, 2012
Ok, I will set it to 1 and test again ;)

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TheLunarFrog
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#182 TheLunarFrog

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Posted Sep 21, 2012
@HeavenMc

Yeah, the interval is the CheckInterval configuration node, and it's minutes. Also, that only triggers when the amount of memory free drops below the amount configured in the Threshold node. So, it would start alerting you at 18% memory.

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_ForgeUser8391715
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#181 _ForgeUser8391715

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Posted Sep 21, 2012
Yeah, I think so. How long does it take? 10 Minutes?

Lag: Enabled: true Threshold: 18 CheckInterval: 10

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TheLunarFrog
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#180 TheLunarFrog

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Posted Sep 20, 2012
@HeavenMc

And you're sure that the server is below your tps threshold in TPS when the plugin checks?

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_ForgeUser8391715
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#179 _ForgeUser8391715

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Posted Sep 20, 2012
40, no command, no message :(
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TheLunarFrog
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#178 TheLunarFrog

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Posted Sep 19, 2012
@HeavenMc

Try #40. Should be fixed. The plugin includes one slash already, so if it's a one-slash command (i.e. /butcher), don't include the slash. If it's a two-slash command, such as one of world edit's set or something (not that the console can have a WE selection), include only one.

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