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The famous cache miss plays a fundamental role with regard to the functioning of websites. But, if the configuration is not correct, the speed and performance of the Internet pages can be degraded. The lack of cache is a serious problem that can cause damage to companies, whether they are small, medium or large.
Luckily for everyone, there are ways to organize the cache system. Acting correctly, the site will work perfectly. In this post, we will address several subjects that are directly linked to the topic.
Want to know more about cache miss? Continue your reading!
What is cache miss?
Before knowing what cache miss is, it is necessary to understand what cache means. This expression is nothing more than a set of files that the application used has already downloaded or processed. The information that has already been loaded is stored so that it is not necessary to load them again.
The cache miss, in turn, happens when the content needed to use a certain function is not saved in the cache. In that case, the application will be responsible for looking for the answer within other cache levels. If it cannot find the data, it will be searched in the application memory. The return will be slower and the application processing will be consumed.
What is the difference between cache miss and cache hit?
Cache hit, unlike cache miss, means cache success. It happens when the cache finds the requested data in its memory. In this case, the request is successfully answered. In case of cache miss, as previously mentioned, the search system does not find the requested information stored in memory.
Why does cache miss happen?
A cache miss happens when the required data is not found in the four different cache levels. When scanning, if the system does not find the data in one of the caches, it goes to the other and so on, causing slowness in opening the content.
To avoid having large amounts of miss caches, IT personnel can stipulate an expiration date for the useful life of the caches. The stipulated time will be what the content will be saved in the cache.
What are some ways to reduce cache miss?
The best news of all is that there are a few ways to get more data to be found when searching your computer’s memory. Below are some tips that can help you reduce this problem!
1. Use Lifespan Cache and increase storage
Every time your computer or notebook’s cache is cleared, information from it needs to be recorded in memory, the first time you access new sites. It is possible to clear only certain sections. And, you will decide which procedure to apply. The more times the cache is cleared, the more chances of data loss.
In such cases, you can choose to extend the lifetime of the cache. The expiry time can be chosen by you and it is important that it has the same frequency with which you update your website. This is to ensure that changes appear to users who need the information.
What can be taken into account when deciding what the frequency of the expiry time will be is the factor of how long the website updates. In some cases it may be one to two days and in others once a week. The options vary and also depend on the hosting provider.
In the Lifespan cache section, you can choose a global expiration time. This stops when the cache is cleared. And, when finished, you or the person responsible for your company’s information technology area can click on the save button and keep the data you need intact.
2. Change storage policy
The storage policy can also be modified. This is one of the most efficient ways to reduce cache misses. The tip is, test the most different ways of caching possible. Understanding what the options are is extremely important. Among them we can mention:
- FIFO (First In, First Out) – means that the first information saved in the cache will be the first to be removed;
- LIFO (Last In First Out) – the last entries in the cache will be the first to be deleted;
- LRU (least recently used) – removes data that is no longer being used first. The evaluation takes place by scanning the data that has been accessed for the longest time;
- MRU (Most Recently Used) – In this storage policy, the most recently seen data is the first to be removed.
It can be said that the application of several policies can help reduce cache misses. They are responsible for informing the system which items should be deleted first, so that space is freed for caches that are most needed. If you want to give it a try, contact your hosting provider and see what assistance you can get regarding policies.
3. Increase RAM memory
A good RAM memory is extremely important to reduce cache losses. The larger the cache, the more data it contains, and the less cache misses you will have. For that reason, having a more robust memory is a great solution. But, know that increasing the RAM memory can cost a little more.
And, the ideal is to check with your IT team, which would be the best option for your business. It can even be seen with the hosting provider which is the most suitable memory capacity. If you are concerned about downtime for the RAM boost to be applied, try to choose the option that doesn’t make you worried about this issue.
So, now that you know what the famous cache miss is, be sure to apply the techniques mentioned in this post to your company. Through our tips you will be able to keep your website at a good speed and you won’t have to spend a lot of money to make the necessary repairs.
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