throttling

问题 The following Typescript performs each call to doSomething(action) one at a time. (Meaning the second item in the list does not get a call made until the first one is done). async performActionsOneAtATime() { for (let action of listOfActions) { const actionResult = await doSomethingOnServer(action); console.log(`Action Done: ${actionResult}`); } } This one will send all the requests to the server right away (without waiting for any responses): async performActionsInParallel() { for (let

问题 I have this infinite scroll function set up on several of my pages. It works perfectly fine, but the Ajax call to load more items makes several database calls and it has to load a lot of images each time, and it usually takes several seconds to load. I've timed it at between 3 and 7 seconds depending on my connection. Because of this, it can turn into a real train wreck when the browser decides to fire the scroll event several times. How could I go about throttling or debouncing it so that

问题 I'm new to JavaScript. I am trying to figure out how I would create an onresize function to fire a function during and another one after the user is done resizing the window. Most likely a session timeout will occur. Any ideas on writing a basic function? <script type="text/javascript"> window.onresize = function () { // The first function goes here while resizing is happening // Then function 2 occurs when window resizing is finished by the user } </script> Here is the modified version of

问题 In my Producer-Consumer scenario, I have multiple consumers, and each of the consumers send an action to external hardware, which may take some time. My Pipeline looks somewhat like this: BatchBlock --> TransformBlock --> BufferBlock --> (Several) ActionBlocks I have assigned BoundedCapacity of my ActionBlocks to 1. What I want in theory is, I want to trigger the Batchblock to send a group of items to the Transformblock only when one of my Actionblocks are available for operation. Till then

问题 I am using the AWS SDK for PHP to interact programmatically with DynamoDB. I would like to detect if a request to DynamoDB has been throttled so another request can be made after a short delay. Right now, I am operating under the assumption that throttled requests are not fulfilled. Amazon FAQs suggest that a 400 error is returned when throttling occurs. So I currently have logic that looks something like this: for( $i=0; $i<10; $i++ ) { $response = $dynamodb->get_item($get_item_args); if(

问题 Possible Duplicate: Facebook OAuth Error: Application request limit reached I wrote a Facebook monitoring app that calls Facebook FQL by default every 30 seconds to determine if the user has any unread notifications, messages, or friend requests. Recently, it stopped working. When debugging, I found Facebook returns the following error: error = { message = "(#4) Application request limit reached"; type = OAuthException; }; Huh? How do I fix this? This is a production Desktop App. Obviously

问题 I am working on a project which involves uploading flash video files to a S3 bucket from a number of geographically distributed nodes. The video files are about 2-3mb each, and we are only sending one file (per node) every ten minutes, however the bandwidth we consume needs to be rate limited to ~20k/s, as these nodes are delivering streaming media to a CDN, and due to the locations we are only able to get 512k max upload. I have been looking into the ASW-S3 gem and while it doesn't offer any

问题 When using a single threaded loop, I was easily able to limit my messages sent per second by putting the thread to sleep (i.e. Thread.Sleep(1000/MessagesPerSecond) ), easy enough... but now that I have expanded into parallel threads this no longer works correctly. Does anyone have a suggestion how to throttle messages sent when using Parallel threads? Parallel.For(0, NumberOfMessages, delegate(int i) { // Code here if (MessagesPerSecond != 0) Thread.Sleep(1000/MessagesPerSecond); }); 回答1: Use

问题 Background I am making a batch of HTTP GET requests to a server and I need to throttle them to avoid killing the poor server. For the purposes of my demo, this will be the GET method: /* * This function simulates a real HTTP GET request, that always takes 1 seconds * to give a response. In this case, always gives the same response. */ let mockGet = function(url) { return new Promise(fulfil => { setTimeout( url => { fulfil({ url, data: "banana"}); }, 1000, url); }); }; I am using the mockGet

问题 I have a windows service that reads my message queue through WCF. I want the service to process one message before another message (intensive memory actions per msg). I set the throttling configuration to 1, but it does not seem to do anything. If i have 6 messages in my queue, it takes 4 right after the start. Am i missing something? My web.config : <system.serviceModel> <client> <endpoint address="net.tcp://spserv30:9999/services/SPInterface" binding="netTcpBinding" bindingConfiguration=