caching

问题 I'm using StackExchange.Redis with C# and the StackExchangeRedisCacheClient.Get function throws the following exception. myCacheClient.Database.StringGet(txtKey.Text) 'myCacheClient.Database.StringGet(txtKey.Text)' threw an exception of type 'System.TimeoutException' StackExchange.Redis.RedisValue {System.TimeoutException} Message "Timeout performing GET hi, inst: 12, mgr: ExecuteSelect, err: never, queue: 2, qu: 2, qs: 0, qc: 0, wr: 0, wq: 1, in: 0, ar: 0, IOCP: (Busy=0,Free=1000,Min=4,Max

问题 I'm a little confused by the meaning of "Aliasing" between CPU-cache and Physical address . First I found It's definition on Wikipedia : However, VIVT suffers from aliasing problems, where several different virtual addresses may refer to the same physical address . Another problem is homonyms, where the same virtual address maps to several different physical addresses. but after a while I saw a different definition on a presentation( ppt ) of DAC'05: "Energy-Efficient Physically Tagged Caches

问题 Here is sample codes in django. [Case 1] views.py from sampleapp.models import SampleModel from django.core.cache import cache def get_filtered_data(): result = cache.get("result") # make cache if result not exists if not result: result = SampleModel.objects.filter(field_A="foo") cache.set("result", result) return render_to_response('template.html', locals(), context_instance=RequestContext(request)) template.html {% for case in result %} <p>{{ case.field_A}}</p> {% endfor %} In this case,

问题 I am using cache.memoize to memoize a function with Flask-Cache. How can I get the cache key which got set in the decorated function? How can I test that the function is cached during testing? from flask import Flask from flask.ext.cache import Cache app = Flask(__name__) cache = Cache(app, config={'CACHE_TYPE': 'simple'}) @cache.memoize(timeout=10) def get_news(nid, lang=None): return nid, lang @app.route('/news/<str:nid>') def news(news_id): return 'News: ' + get_news(news_id) 回答1: When

问题 I am using cache.memoize to memoize a function with Flask-Cache. How can I get the cache key which got set in the decorated function? How can I test that the function is cached during testing? from flask import Flask from flask.ext.cache import Cache app = Flask(__name__) cache = Cache(app, config={'CACHE_TYPE': 'simple'}) @cache.memoize(timeout=10) def get_news(nid, lang=None): return nid, lang @app.route('/news/<str:nid>') def news(news_id): return 'News: ' + get_news(news_id) 回答1: When

问题 I am new to deno and currently exploring for a minimum viable project in deno. I want to like npm which downloads the npm packages inside the folder node_modules , similarly I want to see the deno packages in a directory. In my current project I do not see any downloaded packages. Please suggest me where to look for deno packages. If I write dep.ts file to mention all the deno packages, can I use the same deno packages for some other projects. My question is bit similar to what Maven or

问题 I am new to deno and currently exploring for a minimum viable project in deno. I want to like npm which downloads the npm packages inside the folder node_modules , similarly I want to see the deno packages in a directory. In my current project I do not see any downloaded packages. Please suggest me where to look for deno packages. If I write dep.ts file to mention all the deno packages, can I use the same deno packages for some other projects. My question is bit similar to what Maven or

问题 The documentation for lru_cache gives the function definition: @functools.lru_cache(maxsize=128, typed=False) This says to me that maxsize is optional. However, it doesn't like being called without an argument: Python 3.6.3 (default, Oct 24 2017, 14:48:20) [GCC 7.2.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import functools >>> @functools.lru_cache ... def f(): ... ... Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr

问题 From this Stack Overflow question, I am trying to use a @angular-builders/custom-webpack:browser with a custom Webpack config that uses html-loader and file-loader in order to rename asset files with their hash content as well as each reference to them in the source code. The final purpose is to be able to cache the assets on in the browser but to guarantee that the user will always have the latest version of the asset (because if it changes due to a new release, the name of the asset will

问题 I have two functions: First, whenever user asks for a value based on key, i search the database and store the result in cache for faster future references. @Cacheable notation helped me in achieving this. Second, whenever user wants to update the value, instead of directly doing the db update operation, I want to update the cache and use a scheduled task to later update the db. I used @CachePut for this. @Cacheable(key="#id") public String getDoc(String id){ // fetch value from database