fforbeck

JProfiler with Docker

Docker

DockerFile

DockerFile should have JProfiler installation.

RUN wget <JProfiler file location> -P /tmp/ && \
  tar -xzf /tmp/<JProfiler file> -C /usr/local && \
  rm /tmp/<JProfiler file>

illright

Будильник
Зарядка
Акварель
Травма
Оригами
Пульс
Спорт
Канатоходец
Магнитофон
Халат

djspiewak

Thread Pools

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

1. CPU-bound
2. Blocking IO
3. Non-blocking IO polling

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

adamw

  val rejectionHandler = RejectionHandler.default
  def logDuration(inner: Route): Route = { ctx =>
    val start = System.currentTimeMillis()
    // handling rejections here so that we get proper status codes
    val innerRejectionsHandled = handleRejections(rejectionHandler)(inner)
    mapResponse { resp =>
      val d = System.currentTimeMillis() - start
      logger.info(s"[${resp.status.intValue()}] ${ctx.request.method.name} ${ctx.request.uri} took: ${d}ms")
      resp
    }(innerRejectionsHandled)(ctx)

mikehearn

// This is a class that attempts to stop you accessing variables outside a lock.
//
// It does not do a perfect job, but can catch some common kinds of mistake, in
// particular when you accidentally try to work with objects inside closures that
// end up running later, outside the locked region (or in a different thread).

// EXAMPLE

val bank = ThreadBox(object {
    val accounts by arrayListOf(10, 0, 0, 0).guard()

wickman

# E.g. TaskClass = CaseClass('name', 'owner', 'pid')
# task1 = TaskClass(name = "hello", owner = "brian", pid = 15)
# task2 = TaskClass(name = "world", owner = "brian", pid = 13)
# tasks = [task1, task2]
# 
# filter(lambda task: task.where(owner = "brian"), tasks) => [task1, task2]
# filter(lambda task: task.where(owner = "brian", pid = 13), tasks) => [task2]
# 
# matcher = TaskClass(pid = 13)
# filter(lambda task: task.match(matcher), tasks) => [task2]

Arkanosis

/*
** C# style properties in C++
** (C) 2010 Arkanosis
** [email protected]
**
** Example code released under the MIT license
** http://www.opensource.org/licenses/mit-license.php
**
** This is an original portable version of
**  http://www.codeproject.com/KB/cpp/properties.aspx