Databases
StackOverflow2013
Postsdbo
POCaching strategy, when does caching become pointless?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POCaching strategy, when does caching become pointless?
    primarykey
    data
    text
    <p>I'm pretty new to caching strategies and implementations. I'm working on a project that will be database intensive, but also have information being updated and changed very regularly. </p> <p>I've found enough info to know generally how to develop the caching function, but what I'm unsure about is the general strategy. </p> <p>If I cache all query results and group them by logical things that I can clear on triggers that make sense, I'll probably have tens of thousands (at least) tiny files in my cache. Would it make more sense to cache only large query results? </p> <p>I know that this is a somewhat hardware specific question, but generally speaking at what volume of files does caching become somewhat pointless? Meaning, if you're loading up the file system with all of these tiny files, does access to them eventually become slow enough that you might as well have just not cached the information to start with?</p> <p>Thanks all, I'm interested in any opinions you have to offer</p> <p>EDIT: Based on the responses regarding this being absolutely application specific, let me pose the question this way which should be universal: </p> <p>Assuming that I have an application that depends on one table with 1,000,000 items in it...</p> <p>Would it be quicker to do a query to retrieve one of those items directly from the database, or to retrieve one of those items from my cache directory with 1,000,000 files, each containing the details of one of those items?</p> <p>EDIT: Apparently 100,000 wasn't enough to get a valid answer, let's make it 1,000,000. Anyone want to go for 1,000,000,000? Because I can do it...</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCharles
    1. USChris
    plurals
    1. This table or related slice is empty.
    1. PL
      singulars
      1. LTDuplicate
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POCaching strategy, when does caching become pointless?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POCaching strategy, when does caching become pointless?
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POCaching strategy, when does caching become pointless?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COSince you're asking for people's opinions and no solution is better than another (at least, not without specifying your requirements and use case), you might consider changing this to a 'community wiki'.
      singulars
      1. POCaching strategy, when does caching become pointless?
      1. USmikegreenberg
    2. CO@Michael - My use case or requirements aren't all that specific. I'm just asking, if I start caching every little piece of information to files, at some point does the pure volume of files degrade the performance gain from caching in the first place?
      singulars
      1. POCaching strategy, when does caching become pointless?
      1. USChris
    3. COMysql should and can work extremely fast on such tiny volumes as 100k rows. So you have enough performance reserve to not become cache-maniac.
      singulars
      1. POCaching strategy, when does caching become pointless?
      1. USzerkms
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload