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hongjiang / plot.awk
Created May 11, 2021 15:50 — forked from katef/plot.awk
#!/usr/bin/awk -f
# This program is a copy of guff, a plot device. https://github.com/silentbicycle/guff
# My copy here is written in awk instead of C, has no compelling benefit.
# Public domain. @thingskatedid
# Run as awk -v x=xyz ... or env variables for stuff?
# Assumptions: the data is evenly spaced along the x-axis
# TODO: moving average
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hongjiang / Public_Recursive_Name_Servers.md
Created May 6, 2021 07:58 — forked from mutin-sa/Top_Public_Recursive_Name_Servers.md
List of Top Public Recursive Name Servers
IPv4 Addr IPv6 Addr ASn Loc Svc Org
8.8.8.8 2001:4860:4860::8888 AS15169 Worldwide (Anycast) Google Public DNS Google
8.8.4.4 2001:4860:4860::8844 AS15169 Worldwide (Anycast) Google Public DNS Google
77.88.8.8 2a02:6b8::feed:0ff AS13238 Worldwide (Anycast) Yandex.DNS Yandex
77.88.8.1 2a02:6b8:0:1::feed:0ff AS13238 Worldwide (Anycast) Yandex.DNS Yandex
1.1.1.1 2606:4700:4700::1111 AS13335 Worldwide (Anycast) Cloudflare-DNS Cloudflare/APNIC
1.0.0.1 2606:4700:4700::1001 AS13335 Worldwide (Anycast) Cloudflare-DNS Clou
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hongjiang / JDIDemo.scala
Created February 18, 2016 14:58 — forked from tyrcho/JDIDemo.scala
JDI in Scala (Java Debug Interface)
// see http://wayne-adams.blogspot.fr/2011/10/generating-minable-event-stream-with.html
import scala.collection.JavaConversions.asScalaBuffer
import scala.collection.JavaConversions.asScalaIterator
import com.sun.jdi.connect.Connector
import com.sun.jdi.event.BreakpointEvent
import com.sun.jdi.request.BreakpointRequest
import com.sun.jdi.request.EventRequest
import com.sun.jdi.Bootstrap
import com.sun.jdi.StringReference
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hongjiang / DirectMemorySize.java
Last active August 28, 2015 13:53 — forked from rednaxelafx/DirectMemorySize.java
An Serviceability-Agent based tool to see stats of NIO direct memory, as an alternative on JDK6 without JMX support for direct memory monitoring. Only works on JDK6; to work on JDK7 will need some tweaking because static variables are moved to Java mirror
import java.io.*;
import java.util.*;
import sun.jvm.hotspot.memory.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.tools.*;
import sun.jvm.hotspot.utilities.*;
public class DirectMemorySize extends Tool {