| L1 cache reference 0.5 ns 1 sec | |
| Branch mispredict 5 ns 10 sec | |
| L2 cache reference 7 ns 14 sec | |
| Mutex lock/unlock 25 ns 50 sec | |
| Main memory reference 100 ns 3.3 min | |
| Compress 1K bytes with Zippy 3,000 ns 1.7 hr | |
| Send 2K bytes over 1 Gbps network 20,000 ns 11.0 hr | |
| Read 1 MB sequentially from memory 250,000 ns 5.8 days | |
| Round trip within same datacenter 500,000 ns 11.6 days | |
| Disk seek 10,000,000 ns 7.7 months |
| 3.2.12 - 3.2.16 | |
| Scopes that are | |
| -- combined via #merge AND | |
| -- are simple column/value equality tests | |
| will be MERGED, last equality test wins. | |
| Chained scopes don't always use merge: | |
| -- explicit where clauses don't use merge (=> AND) | |
| -- class methods (vs scopes) don't use merge ( => AND) |
| #!/usr/bin/env ruby | |
| #require 'pry' | |
| #require 'pry-byebug' | |
| def branch(group:nil) | |
| case group | |
| when :remote | |
| flag = "-r" | |
| when :all |
We appreciate your interest in joining SeeClickFix's development team.
As an exercise to base our conversation moving forward, please complete and submit the following small app. Our tech stack is Rails and Ember, but you may implement this using any Ruby or Javscript framework (Rails, Sinatra, Node, etc.), as a Javascript single page app (Ember, Angular, React, ...), or some combination.
We are interested in your Ruby and/or Javascript skills, but if you think some other language or
We appreciate your interest in joining the CivicPlus mobile development team.
As an exercise to base our conversation moving forward, please complete and submit the following small app:
The CivicPlus mobile engineering team would like to keep track of various events happening in its repos. The team has asked you to create an app which shows selected events types from the Github events api https://api.github.com/repos/:owner/:repo/events.
We appreciate your interest in joining SeeClickFix's development team.
As an exercise to base our conversation moving forward, please complete and submit the following small app to demonstrate your programming skills and familiarity with Android development.
The SeeClickFix engineering team would like to keep track of various events happening in its repos.
| root@localhost:~# curl -v https://maps.googleapis.com/maps/api/geocode/json?address=portsmouth+nh | |
| * Hostname was NOT found in DNS cache | |
| * Trying 2607:f8b0:4006:81a::200a... | |
| * Connected to maps.googleapis.com (2607:f8b0:4006:81a::200a) port 443 (#0) | |
| * successfully set certificate verify locations: | |
| * CAfile: none | |
| CApath: /etc/ssl/certs | |
| * SSLv3, TLS handshake, Client hello (1): | |
| * SSLv3, TLS handshake, Server hello (2): | |
| * SSLv3, TLS handshake, CERT (11): |
We appreciate your interest in joining SeeClickFix's development team. As an exercise to base our conversation moving forward, please complete and submit the following command line app.
For this project, please use the programming language that you think will best illustrate your skills. For reference SeeClickFix uses Javascript, Ruby, Kotlin, Swift, and Java but you aren't required to use one of our languages.