Comic Strips

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Comic Strips is a community for those who love comic stories.

The rules are simple:

The post can be a single image, an image gallery, or a link to a specific comic hosted on another site (the author's website, for instance).
The comic must be a complete story.
If it is an external link, it must be to a specific story, not to the root of the site.
You may post comics from others or your own.
If you are posting a comic of your own, a maximum of one per week is allowed (I know, your comics are great, but this rule helps avoid spam).
The comic can be in any language, but if it's not in English, OP must include an English translation in the post's 'body' field (note: you don't need to select a specific language when posting a comic).
Politeness.
Adult content is not allowed. This community aims to be fun for people of all ages.

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lawrence@lemmy.world

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Linux processes (lemmy.world)

submitted 3 months ago by lawrence@lemmy.world to c/comicstrips@lemmy.world

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[–] dan@upvote.au 3 points 3 months ago (1 children)

A single click in the software can often generate 500 SQL queries, so if you go from 0.05 ms to 1 ms latency you add half a second to clicks

Those queries don't all have to be executed sequentially though, do they? Usually if you have that many queries, at least some of them are completely independent of the others and thus can execute concurrently.

You don't even need threading for that, just non-blocking IO and ideally an event loop.

[–] tias@discuss.tchncs.de 2 points 3 months ago* (last edited 3 months ago)

The catch is that they all need to run in the same transaction to be unaffected by other things going on in the database and to make updates atomic. A single transaction means a single connection, and ODBC/JDBC has no way of multiplexing or pipelining queries over a single connection.

It's probably theoretically possible to run some things in different transactions. But with all the different layers and complexity of the code (including third party components and ORMs like Hibernate), understanding all the failure modes and possible concurrency issues becomes intractable.