preload

问题 I want MongoDB to hold query results in RAM for longer period of time (say 30 minutes if memory is available). Is it possible? OR is there any way i can make sure that the data is pre-loaded into RAM before subsequent queries on it. In fact i am wondering about simple query results performance by MongoDB. I have a dedicated server with 10GB RAM and my db.stats() are as follows; db.stats(); { "db": "test", "collections":16, "objects":625690, "avgObjSize":68.90, "dataSize":43061996,

问题 I have large, wide images within a portfolio page. The images are saved "progressive" and they load fine. I was wondering if there's a way though to kind of preload those images to make them appearing faster and smoother. Or maybe there's a way to preload all the other pages and images into the cache so that at least all the following pages after the first appear smooth and fast? Whatever helps to make the pages load faster and smoother. Any suggestions? Each image consists of a variety of

问题 I use http://github.hubspot.com/pace/ on a current project which preloads the entire page. Is it possible to exclude certain elements from preloading? E.g. I want my #header and #banner element to be visible right away, and let pace do its job for the rest of the page. For me the "start" event is not triggered? Pace.on("start", function() { alert('heee'); }); Wheter in the document-ready nor out of the function. Pace.on("done", … triggers just fine. Update: my major problem at the moment is

问题 i am monitoring the network on Safari mobile for a Web App we are developing and see this: the files get preloaded before (I guess this is why it says "(disk)" in the first of the 3 lines), and this is the network output in safari's web inspector in the network tab. Now I am wondering, why the browser seems to load it first from disk then two times(?) from the url again. Am I reading the output wrong? preloading happens like this (on user interaction): function preloadAudio(url) { console.log

问题 I have a page which dynamically displays dozens of videos (for technical reasons) on each page load. My specifications require me to have each video clickable in the HTML. IE: <video id="video-01448_1" preload="none" controls=""> <source src="https://downloadurl.com/filename1.mp4" type="video/mp4"> </video> <video id="video-01448_2" preload="none" controls=""> <source src="https://downloadurl.com/filename2.mp4" type="video/mp4"> </video> ... more videos preload="none" works in Chrome, FireFox

问题 So, I'm programming a basic TowerDefense game. It's coming together great, but I'm stuck trying to preload images. What my predicament is is that when I call the paint method for my Canvas class (it extends JPanel) it opens a thread called "Image Fetcher x" where 'x' is a number starting with 0 and going up for multiple instances of the thread. As far as I understand, this thread is taking the images from my image variables, locating them on the disk, loading them into RAM for my game to

问题 i've got some jquery script that changes element image on mouseover and the problem is it doesn't preload images.. I know the code is crappy a little (ok, ok really crappy), but i have to work with it, so.. <script type="text/javascript"> $(document).ready(function() { $('#searchbox_submit') .mouseover(function() { var src = $('.searchbox_submit').css("background-image",'url("/wp-content/themes/Locator/images/search_over.png")'); $('.searchbox_submit').attr("src", src); }) .mouseout(function(

问题 I have an App, which has multiple WebViews on different ViewControllers but it takes about 3 seconds to load each of them. Is it possible to start loading the webpages during the Launch Screen or to load the WebView of the SecondViewController when the user is on the webpage on the FirstViewController? import UIKit class dabs: UIViewController { @IBOutlet weak var webView_dabs: UIWebView! override func viewDidLoad() { super.viewDidLoad() let websiteURL = URL(string: "https://www.skybriefing

问题 I have created an R script that it needs to load some libraries first. The problem is that the script needs 1.6 seconds to finish its calculations (measured it many times with Linux command "time") and 0.7 seconds only takes to load the libraries! The script runs quite often, so the delay for library loading accounts to almost 80% of the real workload! Is there any way to have the libraries preloaded so that they won't be loaded each time the script runs? Any other suggestion to bypass this

问题 On a page, there is a button. When the button is clicked, a dropdown shows up. The dropdown contains an image. The problem is that the image is not fetched until the user clicks the button. $("#my_button").click(function(){ $("#my_dropdown").html("<img src=\"http://mysite.com/image.jpg\" />"); }); I'd like to fetch the image when the page loads so it's ready to go when the user clicks the dropdown. How can I do this? I was thinking I could insert the image into the page with display:none set,