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cramja /
Created Jun 2, 2018
Understand the performance impact of reflection
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
public class ReflectionTest {
public interface FooGetter {
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cramja / d3_example_1.html
Last active Apr 6, 2017
Example of updates with merging in d3
View d3_example_1.html
<!DOCTYPE html>
<meta charset="utf-8">
text {
font: bold 48px monospace;
.enter {
fill: green;
cramja / d3_example_0.html
Created Apr 6, 2017
making some circles and lines in d3
View d3_example_0.html
<!DOCTYPE html>
button {
position: absolute;
top: 10px;
left: 10px;
circle {
cramja / qs-apache-rc-email-template.txt
Created Mar 4, 2017
Simple Apache Quickstep RC email template
View qs-apache-rc-email-template.txt
Subject: [VOTE] Apache Incubating Quickstep {VERSION} RC{CANDIDATE}
This vote is for approval of the Quickstep-{VERSION} RC{CANDIDATE}.
Voters should download, unpack, build, and test the package before voting.
A +1 vote means that the package passes all tests and meets Apache guidelines.
A -1 vote should be accompanied with a short reason.
Votes will remain open for 3 days.
cramja /
Created Feb 20, 2017
Quickstep release alpha script
# Scripts for Releasing Quickstep
# Note: This script is a scratch pad with most of the relevent commands.
# Modify it to see fit. We'll finalize it when we understand the
# process better.
# - you must have previously created a gpg key using your apache username
# and uploaded it to a keyserver []
# - make sure someone in the group has validated your key
cramja /
Last active Aug 12, 2016
usage: ctest -R your_test > test.out && python test.out
#!/usr/bin/env python
import sys
import re
import os
# regex for useful parts of the diff file
re_start_digits = re.compile(ur'^\d+: ', re.MULTILINE)
re_test_name = re.compile(ur'TRACE,"executing (.*mdp)",', re.MULTILINE)
re_actual = re.compile(ur'TRACE,"Actual:', re.MULTILINE)
cramja /
Last active Apr 6, 2017
For manipulating GPDB/ORCA optimization flags
#! /usr/#!/usr/bin/env python
import subprocess
xforms = \
cramja /
Created Jun 10, 2016
This script removes unused header comments.
# This script removes unused header comments. Notice that the file locations are hard coded,
# so change that.
import subprocess as sp
import re
import os
def main():
cramja / TestConcurrency.cpp
Created Apr 25, 2016
A snippet to show how to test the StorageManager interface using concurrency and brute-force. An even better test would be to automatically detect deadlock.
View TestConcurrency.cpp
namespace storage_manager_test_internal {
static int client_id = 0;
static const int NUM_BLOBS_PER_CLIENT = 100;
static const int BLOB_SIZE_SLOTS = 1;
static const int CLIENT_CYCLES = 1000;
class StorageClient : public Thread {