lru Questions
3
Solved
Using the LRU Cache decorator found here:
http://code.activestate.com/recipes/578078-py26-and-py30-backport-of-python-33s-lru-cache/
from lru_cache import lru_cache
class Test:
@lru_cache(maxsize...
4
Solved
I have a little question about the algorithm LRU.
If you have a cache with four blocs , how many bits do you need to implement this algorithm ?
2
Solved
I have functions in python that have caches with lru_cache e.g.
@lru_cache(maxsize=None)
def my_function():
...
While i can individually clear the caches with e.g. my_function.cache_clear() ...
3
I have implemented a standard LRUCache in Android that stores Objects. Each key is a unique ObjectId associated with the Object stored. My problem is that the only way to retrieve an Object from ca...
Sulphanilamide asked 18/12, 2013 at 21:2
3
Solved
I am trying to implement my own LRU cache. Yes, I know that Java provides a LinkedHashMap for this purpose, but I am trying to implement it using basic data structures.
From reading about this top...
Beltz asked 2/4, 2016 at 23:10
4
Solved
I have a short question about the std::set container. Right now I am feeding my set using the pushback function. Of corse the set becomes larger and larger for every push_back.
I am only intrested ...
4
I have around 6,00,000 entries in MongoDB in the following format:
feature:category:count
where
feature could be any word,
category is positive or negative, and
count tells how many times ...
1
Solved
I'm trying to use Caffeine as LRU cache, so entries that were added first will be evicted first.
Ran this code:
final Cache<Object, Object> map = Caffeine.newBuilder()
.maximumSize(10)
.in...
1
Solved
How does OrderedDict in Python remember all the order of the elements? What is the performance overhead? For problems like implementing LRU, I found this really powerful and very simple to implemen...
Rundlet asked 17/11, 2015 at 2:53
1
Solved
I am using 5 databases in my redis server. I want to evict keys belonging to a particular DB using LRU mechanism. Is it possible ?
I read this: how-to-make-redis-choose-lru-eviction-policy-for-onl...
2
Solved
How can I make @functools.lru_cache decorator ignore some of the function arguments with regard to caching key?
For example, I have a function that looks like this:
def find_object(db_handle, que...
Zecchino asked 9/6, 2015 at 11:41
5
I'm building an application with Swift and I'd like to use an LRU Cache in my application. I've implemented a simple LRUCache<K: Hashable, V> in Swift but then I figured that since it already...
2
Solved
I'd like to view the time of most recent access for a specific key on my redis server.
I know that this information is stored for each key because it is used in redis's LRU algorithm for eliminati...
2
Solved
I'm studying up for an interview and want to refresh my memory on caching. If a CPU has a cache with an LRU replacement policy, how is that actually implemented on the chip? Would each cache line s...
Fontaine asked 3/5, 2014 at 18:50
1
I'm using Python 3's builtin functools.lru_cache decorator to memoize some expensive functions. I would like to memoize as many calls as possible without using too much memory, since caching too ma...
Comate asked 5/5, 2014 at 16:27
2
Solved
When in memcache the available memory is full, memcache uses the LRU (last recently used) algorithm to free memory.
My question is will the LRU Algorithm rather delete entries that have not been us...
1
Solved
This might be simple, but I can't get my head around it. Can anyone give me an example of sequential flooding? In the textbook I am reading and in Internet sources it is stated
When the number of ...
Anschluss asked 9/12, 2013 at 6:8
4
Solved
I often do interactive work in Python that involves some expensive operations that I don't want to repeat often. I'm generally running whatever Python file I'm working on frequently.
If I write:
...
Decoupage asked 20/11, 2013 at 1:46
2
I want to limit the size of the BlockingCollection. If I want to add another item and the collection is full, the oldest must be removed. Is there some Class specific to this task or my solution is...
Cida asked 10/6, 2013 at 19:53
1
Solved
assuming all keys in a redis instance have an expire set, volatile-lru and allkeys-lru are similar. But is there a significative performance difference between the 2 when a key is removed?
Bonus q...
Mauretta asked 15/10, 2012 at 9:7
5
Solved
I know it's simple to implement, but I want to reuse something that already exist.
Problem I want to solve is that I load configuration (from XML so I want to cache them) for different pages, role...
2
Solved
I'm thinking about implementing the first layer of my caching in an Android app.
I was considering SoftReferences to surely avoid OOM exceptions, but since there are many articles about how Android...
Polecat asked 22/2, 2012 at 16:54
6
Solved
How to design a latest recently used cache?
Suppose that you have visited some items. You need to design a data structure to hold
these items. Each item is associated with the latest visited tim...
Staceystaci asked 29/11, 2011 at 19:34
1
Solved
Is the new Android class LruCache thread safe? The java doc says:
This class is thread-safe. Perform multiple cache operations atomically by synchronizing on the cache:
synchronized (cache) {...
Cuttlebone asked 17/8, 2011 at 0:40
1
Solved
(First of all, my English is not very good, please)
As we know, memcached provides lazy expiration, and "replaces" LRU data in its slabs, however I'm not very clear how it does this. For example, ...
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