I am currently using django-redis as cache backend for Redis. I haven’t used django-redis-cache so far, but what made me take the decision to use django-redis are the following: Modular client system (pluggable clients). Some of the pluggable clients come out of the box (shard client, herd client, etc.) Master-Slave support in the default client. … Read more
You will probably need to tell the service worker to check the server for updates, I usually use a service for this: export class UpdateService { constructor(public updates: SwUpdate) { if (updates.isEnabled) { interval(6 * 60 * 60).subscribe(() => updates.checkForUpdate() .then(() => console.log(‘checking for updates’))); } } public checkForUpdates(): void { this.updates.available.subscribe(event => this.promptUser()); } … Read more
You may pass a version string as a get parameter to the URL of your script tag. The parameter won’t be evaluated by the static JavaScript file but force the browser to get the new version. If you do not want to assign the version string every time you edited the source you may compute … Read more
The inelegant way is to simply add a call to res.set() prior to any JSON output. There, you can specify to set the cache control header and it will cache accordingly. res.set(‘Cache-Control’, ‘public, max-age=31557600’); // one year Another approach is to simply set a res property to your JSON response in a route then use … Read more
The important distinction here is between cache misses caused by the size of your data set, and cache misses caused by the way your cache and data alignment are organized. Lets assume you have a 32k direct mapped cache, and consider the following 2 cases: You repeatedly iterate over a 128k array. There’s no way … Read more
If you’re writing the page dynamically, you can add the last-modified timestamp to the URL: <img src=”https://stackoverflow.com/questions/321865/image.jpg?lastmod=12345678″ …
You can support multiple frontend domains this way: backend example1 { .host = “backend.example1.com”; .port = “8080”; } backend example2 { .host = “backend.example2.com”; .port = “8080”; } sub vcl_recv { if (req.http.host == “example1.com”) { #You will need the following line only if your backend has multiple virtual host names set req.http.host = “backend.example1.com”; … Read more
Make use of a middleware to add no-cache headers. Use this middleware where-ever you intend to turn caching off. function nocache(req, res, next) { res.header(‘Cache-Control’, ‘private, no-cache, no-store, must-revalidate’); res.header(‘Expires’, ‘-1’); res.header(‘Pragma’, ‘no-cache’); next(); } Use the middleware in your routes definition: app.get(‘/getfile’, nocache, sendContent); function sendContent(req, res) { var localPath=”some-file”; var mimeType=””; fs.readFile(localPath, ‘utf8’, … Read more
As far as syntax goes, you can use the null-coalescing operator if you want to be fancy, but it’s not necessarily as readable. get { return notes ?? (notes = CalcNotes()); } Edit: Updated courtesy of Matthew. Also, I think the other answers are more helpful to the question asker!
You could try cachegrind and it’s front-end kcachegrind.