Performance improvement of 2D array [closed]
Since your array is large and you do random access, you will (roughly) have a cache miss on each access. You cannot avoid that unless you know the location you will access next before you access it. If you do, you can try to prefetch the location using, e.g., the...
Paging / Page fault handler - how is a virtual address used to find specific content on the disk
memory,memory-management,operating-system,paging,disk
The MMU isn't responsible for anything other than translating a virtual address to a physical address. It doesn't do disk accesses or anything. The trick used by many operating systems to swap memory to disk or map a file on disk to a virtual memory address space generally works by...
ExtJS 5 - Paging toolbar for Grid not working with Memory Proxy
extjs,memory,proxy,paging,extjs5
This is actually a very subtle error on your part; In your Main class you are defining a store configuration of type: 'mygrid' on your gridpanel, you are then defining the store configuration a second time on the pagingtoolbar - this is creating two seperate store instances and subsequently confusing...
PHP Pagination script is not working
One immediate problem jumps out at me: if($i=1) should be: if ($i == 1) ...
load more for UITableView in swift
uitableview,swift,scroll,paging
To answer your question made a small test! One possible solution to this problem is to make another array and add it to the data that you want to display in the table and load the data to the same that you want to load! Loading data will willDisplayCell forRowAtIndexPath...
Why my Gridview will disappear after clicking on page 2(Paging)
It should work. Maybe the grdResult_PageIndexChanging event doesn't fire So create a break point on int newPageIndex = e.NewPageIndex; or on this line grdResult.PageIndex = newPageIndex; If this event doesn't run, maybe your result grid has not been attached this event. Please try to reattach it again and I think,...
Hardware Support for Paging
Memory is byte-addressable hence, you do not need to divide by 2^3 for bytes to bit conversion. Explaining it further, 16-bits for address means that the processor will generate memory addresses of length 16 bits which will be used to address the byte or half-word or word present starting (or...
How can we do paging with backbone marionette composite view?
backbone.js,requirejs,marionette,paging,backbone.paginator
I have used backbone.paginator to resolve above issue and it works well. Below are the new code used for that. Collection: define([ 'jquery', 'underscore', 'backbone', 'helper', 'paginator' ], function ($, _, Backbone) { var Groups = Backbone.PageableCollection.extend({ url: 'projects/_groups', mode: "infinite", state: { pageSize: null }, queryParams: { totalPages: null,...
Facing a trouble in pagination
Try this..........Simple Pagination <html> <head> <style> #content { width: 900px; margin: 0 auto; font-family:Arial, Helvetica, sans-serif; } .page { float: right; margin: 0; padding: 0; } .page li { list-style: none; display:inline-block; } .page li a, .current { display: block; padding: 5px; text-decoration: none; color: #8A8A8A; } .current { font-weight:bold;...
jQuery JTable paging not working
jquery,json,pagination,paging,jquery-jtable
I don't know what your sql statement is like, but I was having the same issue you were and finally figured out that you have to set the paging yourself, using LIMIT in MySQL (it's a bit more complicated in MSSQL). --MySQL, PHP "SELECT * FROM Students ORDER BY Name...
Access paging in iOS - previous and next : retrieved in JSON from facebook graph-api
json,facebook-graph-api,ios7,paging
Page information has the current access token, and also depending up different limits restriction paging values will always change , so; its best to use the url and fetch the result. Because the result of next will also have pointer to both previous and next , best method to parse...
Multi-level page tables
memory-management,operating-system,paging,cpu-architecture
I think I found out the solution. Each entry in the top-level table may be empty, in which case the entire segment is not present, or may point to a lower level page table that maps the pages in that segment. Each lower level page table has up to 256...
Will physical addresses of all paging structures in Linux be mapped in the page tables
linux-kernel,paging,virtualization,kvm
In 64-bit Linux, all physical addresses are always mapped with a Supervisor mapping in the kernel half of the address space. You can convert a physical address to the corresponding virtual address in the linear kernel mapping by adding PAGE_OFFSET, which on x86-64 is 0xffff880000000000. Are you sure that you...
jquery-1.3.1.min.js not working when jquery-1.10.2.js was called
I already solve this problem before, Well, my fault, but when i redownload the jquery-1.3.1.min.js file, both js file is working fine. So, i advice to double check your sources and its file size when you attempt to use plug in and encounter the same problem.
Table paging in query results table
table,paging,jdeveloper,jqueryform
I was able to put pagination to work, changing this In the VO Sector Tunning All Rows; In Batches of: 100 Component Table Appearance / ScrollPolicy - page Behaviour / AutoHeightRows - 0 Style / StyleClass - AFStretchWidth ...
Paging data tables in jQuery
jquery,jquery-datatables,paging
My assumptions with your question: You have a html-table, that is being populated from the context having all 50 rows. Now you want to do pagination for those elements. Here, I'm going to show some approaches: Think about Django Pagination . You context variable will do the pagination. Use Django-datatable-view...
PagedList.Mvc returns all records from the table
Behind the scenes, ToPagedList is going to perform two operations: To get the total number of records (for knowing how many pages there will be): query.Count() To get the current page of records: query.Skip((pageNumber - 1) * pageSize).Take(pageSize) Those result in the two queries you are seeing. It's going to...
jqgrid paging on server side
You are doing asynchronous calls in find but in your callback you have other statement after find. These will be executed before find finishes. Could that be the problem?
Sorting issue with jqgrid
jqgrid,pagination,paging,server-side,mvcjqgrid
Yes finally done in a simple way. Added one hidden field. <input type="hidden" id="exampleGrid" value="" /> Modified jqgrid as $(document).ready(function () { $("#grid").jqGrid({ emptyrecords: "No records to view", ignoreCase: true, datatype: "json", url: '@Url.Action("LoadData", "Home")', mtype: "GET", height: 'auto', rowNum: 5, rowList: [5, 10, 15, 20], colNames: ['EmployeeId', 'EmployeeName', 'EmployeeCity'],...
What is the difference between demand paging and page replacement?
memory-management,operating-system,paging,page-replacement,demand-paging
In a system that uses demand paging, the operating system copies a disk page into physical memory only if an attempt is made to access it and that page is not already in memory (i.e., if a page fault occurs). It follows that a process begins execution with none of...
Decorating Tapestry Grid with input and/or links for setting custom number of rows per page
java,pagination,grid,paging,tapestry
I think you should create a new component which has an embedded t:grid. You might find that publishParameters will help. eg: ExtendedGrid.java public class ExtendedGrid { @Component(id="grid", publishParameters="source,inplace,etc,etc") private Grid grid; @Property private int rowsPerPage; } extendedGrid.tml <t:container xmlns:t="http://tapestry.apache.org/schema/tapestry_5_3.xsd"> <t:form zone="gridZone"> <t:select t:id="rowsPerPage" model="[10,20,50,100]" /> <t:submit /> </t:form> <t:zone t:id="gridZone">...
ExtJS 4 pagination with local store
javascript,pagination,extjs4,store,paging
Most likely, the problem is that the PagingMemoryProxy.js is not being loaded. Make sure you are loading this script explicitly (since this is part of 'examples', it is not part of the ext-all ) You can find this under <extjs folder>\examples\ux\data\PagingMemoryProxy.js Ext.Loader.setConfig({ enabled: true }); Ext.Loader.setPath('Ext.ux', 'examples/ux'); Ext.require('Ext.ux.data.PagingMemoryProxy'); ...
When to do or not do INVLPG, MOV to CR3 to minimize TLB flushing
x86,paging,x86-64,virtual-memory,tlb
In the simplest possible terms; the requirement is that anything the CPU's TLB could have remembered that has changed has to be invalidated before anything that relies on the change happens. The things that the CPU's could have remembered include: the final permissions for the page (the combination of read/write/execute...
Pagination with Controllers -> keeps redirecting to index.php
php,controller,pagination,paging,dao
This is quite a good post on simple pagination with PHP Limit pagination page number With your example, for starter you should also validate that the page parameter is an integer and you can get partially rid of the very last if-else statement. So let's try optimizing the code a...
What does the User/Supervisor bit in the page table entry mean?
On an Intel virtual memory system, the user/supervisor bit set to 1 for a certain page means "this page is accessible by a process executed in user mode (in contrast to supervisor mode) ", see here. I which mode a process is executed is determined by the supervisor bit in...
SQL - Paging comments
sql,sql-server,sql-server-2008,comments,paging
You could use a query similar to the following to get the Comments in the correct order: select case when c.ReplyId is not null then ' ' else '' end + UserName + ': ' + c.content Line from Comment c order by IsNull(c.ReplyId, c.CommentId), c.commentId ...
Calculating the size of a 2-level page table
memory,operating-system,paging,page-tables
You would need 3 pages (or 12K) for your page table - one for the top level page, and two 2nd level pages. Allocating just the space that is currently needed would be more complicated and likely slower than the alternative. Check out Prof. Levy's slides for some nice pictures...
On x86, does enabling paging cause an “unconditional jump” (since EIP is now a virtual address)?
Yes and No Yes, in the informal sense, since now the MMU do a translation from virtual to linear addresses and since the CPU fetches virtual addresses. If we switch on paging when executing an instruction at address 4000h, assuming the next instruction is at 4003h, it is possible that...
simple pager method for asp.net razor
Here is an asp.net link for sorting, filtering and paging with MVC
facebook4j graph api limiting the no of comments to 25 on a post
java,facebook-graph-api,paging
First number of returned items is limited to 25 by default and maxed at 250. So you need to add a "limit(250)" param to your call. Second you need to return all comments/likes by adding a "filter(stream)" param to your call for comments or likes. Facebook "hides" some comments or...
How to handle pagination when the source data changes frequently
elasticsearch,pagination,paging
A filter is not a bad option, if you're already indexing a relevant timestamp. You have to track that timestamp on the client side in order to correctly prepare your queries. You also have to know when to get rid of it. But those aren't insurmountable problems. The Scroll API...
What is paging and why is it important
In any Computer operating system, Memory management is crucial aspect. Paging is one of the memory management plan by which computer stores and retrieves data from the secondary storage to the main memory of the device. The secondary storage is divided into pages for storing and retrieving data. Paging is...
Delete Gridview row when paging is enabled
c#,asp.net,gridview,datatable,paging
From OP comments when I press the delete button it is deleting a selected row from the first page only When you are going to delete record from page after first page, you have to add the records on previous pages to get the index of the record in the...
Do multi-level page table store the entire page-table if only half is used?
memory,memory-management,paging,page-tables
You need a first level page with all entries populated to point to second level pages. The trick is to share second level pages that do not refer to any actual physical memory. If you use only 2 pages of second level entries, you should need a total of 4...
Locally paging on Extjs 5 store of type ajax
Paging of already loaded data is achieved with Ext.data.proxy.Memory configured with enablePaging: true. So what you need is to use two stores: "Remote" store to merely load data from the server side; Local paging store configured with memory proxy. The data will be loaded from the remote store once it...
Why is the adressspace increased from 32 to 36 bits with PAE
paging,computer-architecture,ia-32,page-tables
The physical address space can be 36 bits. The linear address space is always 32 bits in IA-32. Its achieved by increasing the size of the page directory pointer table entries, page directory entries and page table entries. They are all 64 bits with PAE paging enabled.And actually with PAE...
Angular paging generates wrong number of pages
javascript,angularjs,bootstrap,paging
You're missing the items-per-page, in your case it should be 16, but since you don't provide it it set to the default of 10 items per page.
Memory Management (Allocating Pages/Frames to Logical Addresses)
memory,memory-management,operating-system,paging,virtual-memory
If you have a page size of 4096, then page number = address DIV 4096 page offset = address MOD 4096 Those two values uniquely identify the logical memory location. Two addresses can be in the same frame. If that were not the case, there would be no point in...
How to Calculate Effective Access Time
operating-system,paging,tlb,page-tables
The TLB and PT indexing is assumed to be "parallel". So lookup for TLB and PT are simultaneous. Upon memory lookup, the processor launches both a PT and TLB query. If the TLB has an answer, it will answer first; that's hit case. If not, the query will continue to...
Determine a target record's offset in a Postgres query
sql,json,postgresql,aggregate-functions,paging
The one-stop shop you are looking for: WITH cte AS (SELECT lastName, givenNames, id AS x FROM presidents WHERE id = 16) SELECT row_to_json(sub2) AS js FROM ( SELECT (SELECT count(*) FROM presidents WHERE (lastName, givenNames, id) < (TABLE cte)) AS "offset" , count(*) AS "count" , array_agg(sub1) AS records...
Datatable show/hide sorting/paging
.net,sorting,datatable,jquery-datatables,paging
From the description of the retrieve option (emphasis mine): Retrieve the DataTables object for the given selector. Note that if the table has already been initialised, this parameter will cause DataTables to simply return the object that has already been set up - it will not take account of any...
How is the virtual adress of the page table is converted to its actual physical adress?
memory-management,linux-kernel,paging
No, cr3 has the physical address of page table, not the virtual address. If cr3 contains the virtual address of page table, you'll fall into a logic dead loop and have no way to find page table.
Paging in .NET Web API
c#,.net,asp.net-web-api,odata,paging
You can extend the default behavior of the EnableQuery attribute to use web.config's value as you want. Maybe something like this: public class EnablePagedQueryAttribute : EnableQueryAttribute { public EnablePagedQueryAttribute() { int myPageSizeFromWebConfig = 0; // Get value from web.config as you want: if (int.TryParse(ConfigurationManager.AppSettings["myPageSize"], out myPageSizeFromWebConfig)) { this.PageSize = myPageSizeFromWebConfig;...