Juraj Martinka jumarko

Thread Pools

Thread pools on the JVM should usually be divided into the following three categories:

CPU-bound
Blocking IO
Non-blocking IO polling

Each of these categories has a different optimal configuration and usage pattern.

This is a bit of a thought exercise. I doubt it’s perfect and I’m hoping for opinions and corrections with the goal of a well reasoned practical approach.

Motivation...

One way to look at type declarations in a static language is as a test which picks up potential incompatible code paths. E.g. data passed is incompatible with code.

In static languages the effort to write the test is reduced by virtue of being declared inline with the code and inference allows a few annotations to permeate - having said that we can achieve a similar results in Clojure.

Quick scan of tools at hand...

Introductory resources

High level overview https://yogthos.github.io/ClojureDistilled.html
An Animated Introduction to Clojure https://markm208.github.io/cljbook/
Interactive tutorial in a browser https://tryclojure.org/
Interactive exercises http://clojurescriptkoans.com/
Clerk notebooks with introductory examples https://github.clerk.garden/anthonygalea/notes-on-clojure
More interactive exercises https://4clojure.oxal.org/
Lambda Island tutorials https://lambdaisland.com/
Functional Programming with Clojure resources https://practicalli.github.io/

Medication contraindications

You probably know this, but here's some background so we're all on the same page. Some medicines shouldn't be taken in combination. When two medications shouldn't be taken together, it's called a contraindication.

(def patient-medications [{:name "Blythenal"
                           :rxNorm "blyth"}
                          {:name "Masbutol"
                           :rxNorm "masbut"}
                          {:name "Welbutril"

My answer to: https://www.reddit.com/r/Clojure/comments/pcwypb/us_engineers_love_to_say_the_right_tool_for_the/ which asked to know when and at what is Clojure "the right tool for the job"?

My take is that in general, the right tool for the job actually doesn't matter that much when it comes to programming language.

There are only a few cases where the options of tools that can do a sufficiently good job at the task become limited.

That's why they are called: General-purpose programming languages, because they can be used generally for most use cases without issues.

Let's look at some of the dimensions that make a difference and what I think of Clojure for them:

	(require '[clojure.set :as set])


	(def info
	[{:year 2017
	:month 4
	:data "x"}
	{:year 2017
	:month 4
	:data "y"}

	cmake_minimum_required(VERSION 3.7)
	project(hotspot)
	include_directories(
	src/hotspot/cpu
	src/hotspot/os
	src/hotspot/os_cpu
	src/hotspot/share
	src/hotspot/share/precompiled
	src/hotspot/share/include
	src/java.base/unix/native/include