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kwanCCC / windowing.scala
Created October 28, 2019 10:08 — forked from adamw/windowing.scala
Windowing data in Akka
package com.softwaremill.akka
import java.time._
import akka.actor.ActorSystem
import akka.stream.ActorMaterializer
import akka.stream.scaladsl.Source
import scala.collection.mutable
import scala.concurrent.Await
@kwanCCC
kwanCCC / IfElse.java
Created December 18, 2018 09:39 — forked from Ahmed-Adel-Ismail/IfElse.java
Observable Operators that enables switch-case and if-else in RxJava stream, you can use them with lift() operator, and pass to them a Map of key/function , if the key is matched with the emitted item, it's function will be executed and it's value will be returned in the stream
/**
* an {@link ObservableOperator} that simulates an if-else in an RxJava Stream, it takes a {@link Map}
* of {@link Predicate} as key and a {@link Function} as value ... the if any emitted item passes
* the {@link Predicate}, this emitted item will be passed to the {@link Function} mapped to it,
* and this item will be invoked and it's result will continue down the stream
* <p>
* sample code :
* <p>
* {@code List<Integer> list = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8);}<br>
* {@code Map<Predicate<Integer>, Function<Integer, String>> blocks = new LinkedHashMap<>(2)}<br>
@kwanCCC
kwanCCC / nginx-tuning.md
Created April 24, 2018 02:42 — forked from denji/nginx-tuning.md
NGINX tuning for best performance

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.