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Writing Post Mortems - John Allspaw

This talk is also known as ‘PostMortem Facilitation: Theory and Practice of "New View" Debriefings’ Background reading for attendees

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Dear Potential MP,

I'm a potential voter / constituent for Insert your consituency here.

I've been looking at candidates CVs on Democracy Club, to understand whether I feel a candidate best represents my views in the coming election. I would appreciate you adding your CV to this service, so that I and all other voters in the constituency have all the data available to us when it comes to making a decision on polling day.

jabley

import java.util.Arrays;

public final class Main {

  public static void main(String[] args) {
    int[][] rows = new int[18][28];
    for (int[] row : rows) {
      System.out.println(Arrays.toString(row));
    }
  }

jabley

We have 2 projects:

• https://github.com/alphagov/backdrop which is the current Python API for the Performance Platform. It's a couple of Flask apps.
• https://github.com/alphagov/performance-datastore which is a Go implementation of part of that API, plus a sketching area for me to define how I think the read API should look. It is currently a single Go binary, which supports zero-downtime redeployments via upstart.

https://github.com/alphagov/backdrop/tree/master/backdrop/write implements the existing write API.

The Go version is virtually identical on a feature basis, except it's faster :)

Writing

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Keybase proof

I hereby claim:

• I am jabley on github.
• I am jamesabley (https://keybase.io/jamesabley) on keybase.
• I have a public key whose fingerprint is 84A2 6DB0 2192 B901 AE66 40D6 EEFB 65A6 FA2D E7C6

To claim this, I am signing this object:

jabley

package main

import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"net/url"
	"time"

jabley

master %  scala ~/Projects/stripe-ctf-3/level1 > go tool pprof solve parallel.prof
Welcome to pprof!  For help, type 'help'.
(pprof) topN
Total: 3501 samples
    2696  77.0%  77.0%     2696  77.0% runtime.mach_semaphore_wait
     227   6.5%  83.5%      227   6.5% runtime.usleep
      95   2.7%  86.2%       95   2.7% crypto/sha1.block
      50   1.4%  87.6%       50   1.4% runtime.mach_semaphore_timedwait
      39   1.1%  88.7%       39   1.1% runtime.casp
      26   0.7%  89.5%      136   3.9% runtime.mallocgc

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Information Revolution in Government

GDS/GOV.UK context

Martha’s report

Need-o-tron

? Suck all of the existing content into a search index? No

built a tool to force people to think about the problem in a particular way

giving people a framework to think about needs

recording decisions in a transparent fashion

GOV.UK

here’s what that lead to

jabley

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