ytoshima

/**
 * Prints address map with gap size between segment
 * within a core file.  This program uses readelf
 * command and expects the output is same as the 
 * readelf on Linux.
 */
object CoreAmap {
  def main(args: Array[String]) {
    for (a <- args) doAmapCore(a)
  }

ytoshima

object PmapFilter {
  case class Mr(start: Long, end: Long, desc: String) {
    override def toString = 
        "%08x-%08x %6dk %s".format(start, end, (end-start)/1024, desc)
  }
  def process(path: String) : String = {
    import scala.io.Source
    def procMr(current: Mr, prevEnd: Long) = prevEnd match {
      case 0 => current.toString
      case x if prevEnd == current.start => current.toString

ytoshima

import collection.JavaConversions._
import java.lang.management._
val MB = (1024*1024).toFloat

def b2mb(bval: Long): Float = bval / MB

def mpoolSum(mp: MemoryPoolMXBean) = "%s: use %.2f comm %.2f max %.2f".format(mp.getName, b2mb(mp.getUsage.getUsed), b2mb(mp.getUsage.getCommitted), b2mb(mp.getUsage.getMax))

def minfo = ManagementFactory.getMemoryPoolMXBeans.filter(_.getType == MemoryType.HEAP).map(mpoolSum).mkString("\n")

ytoshima

/*
 * A small cpu and memory stress program
 * compile: CC cpumem.cpp -o cpumem -lpthread
 *      or: make LDFLAGS=-lpthread cpumem
 */
#include <pthread.h>
#include <iostream>
#include <vector>
#include <sys/types.h>
#include <assert.h>

ytoshima

/**
 * Print thread stack use for each thread.
 * This is for linux which has /proc/<pid>/smaps and /proc/<pid>/task/<tid>/stat.
 */
object StackUse extends App {
  import scala.util.control.Exception._
  import scala.io.Source
  import java.io.File
  /**
   * Parse (pid, task stat string) tuple and returns (pid, sp) tuple.

ytoshima

#!/bin/sh
exec ~/local/scala-2.10.0/bin/scala "$0" "$@"
!#
val ge = java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment
val mode = ge.getDefaultScreenDevice.getDisplayMode
println("%dx%d".format(mode.getWidth, mode.getHeight))

ytoshima

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/time.h>
#include <signal.h>
#include <string.h>

ytoshima

cl /Zi -D_UNICODE ps2.cpp Psapi.lib

ytoshima

/* Simple test program to verify si_code=SI_KERNEL(128) for address 
 * above TASK_SIZE64 or TASK_SIZE_MAX (0x800000000000 - 4096 = 0x7ffffffff000)
 * See do_page_fault(k).
 */
#include <stdio.h>
#include <sys/types.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>

ytoshima

package persist.gettingStarted

import com.sleepycat.persist.model.{Entity, PrimaryKey, SecondaryKey}
import com.sleepycat.persist.model.Relationship._

@Entity
class Vendor {
  var address: String = _
  var bizPhoneNumber: String = _
  var city: String = _