evanphx

dir = File.expand_path("..", __FILE__)

require File.join(dir, "redis_protocol")

require 'pp'

class APIFront

  GEM_STORE = "http://production.s3.rubygems.org"

evanphx

got

evanphx

require 'rubygems'
require 'benchmark'
require 'json'

A = (0..1_000).to_a

org_array = []
json_array = []

0.upto(20000) do |i|

evanphx

Lessons Learned

Be Confident

Tests build confidence. Write 'em. They'll save your ass, and they'll let you take a chainsaw to your code without being afraid of unintended consequences.

Be Lazy

evanphx

diff --git a/misc/wasm/wasm_exec.js b/misc/wasm/wasm_exec.js
index 231185a123..13030eea00 100644
--- a/misc/wasm/wasm_exec.js
+++ b/misc/wasm/wasm_exec.js
@@ -256,6 +256,9 @@
 
 			const timeOrigin = Date.now() - performance.now();
 			this.importObject = {
+				_gotest: {
+					add: (a, b) => a + b,

evanphx

diff --git a/lib/kpeg/compiled_parser.rb b/lib/kpeg/compiled_parser.rb
index ff82467..eb16e32 100644
--- a/lib/kpeg/compiled_parser.rb
+++ b/lib/kpeg/compiled_parser.rb
@@ -51,6 +51,12 @@ module KPeg
       @string = string
       @string_size = string ? string.size : 0
       @pos = pos
+
+      if string

evanphx

2021-03-14T01:46:24.752Z 5a1426a7 lax [info] Starting instance
2021-03-14T01:46:24.797Z 5a1426a7 lax [info] Configuring virtual machine
2021-03-14T01:46:24.799Z 5a1426a7 lax [info] Pulling container image
2021-03-14T01:46:27.320Z 5a1426a7 lax [info] Unpacking image
2021-03-14T01:46:28.566Z 5a1426a7 lax [info] Preparing kernel init
2021-03-14T01:46:29.025Z 5a1426a7 lax [info] Configuring firecracker
2021-03-14T01:46:29.106Z 5a1426a7 lax [info] Starting virtual machine
2021-03-14T01:46:29.313Z 5a1426a7 lax [info] Starting init (commit: c1dec69)...
2021-03-14T01:46:29.335Z 5a1426a7 lax [info] Running: `/goapp/app` as root
2021-03-14T01:46:34.361Z 5a1426a7 lax [info] Error: UnhandledIoError(Os { code: 8, kind: Other, message: "Exec format error" })

evanphx

mount("/proc/self/exe", "/run/runc/test/runc.mQQvkM", 0x8cbf35, MS_BIND, 0x8cbf35) = 0
mount("", "/run/runc/test/runc.mQQvkM", 0x8cbf35, MS_RDONLY|MS_REMOUNT|MS_BIND, "") = 0
openat(AT_FDCWD, "/run/runc/test/runc.mQQvkM", O_RDONLY|O_PATH) = 6
umount2("/run/runc/test/runc.mQQvkM", MNT_DETACH) = 0
unlink("/run/runc/test/runc.mQQvkM") = 0
execveat(6, "", ["./runc-rc8-mod", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard", "_LIBCONTAINER_CLONED_BINARY=1"], AT_EMPTY_PATH) = -1 ENOENT (No such file or directory)
close(6)                    = 0

evanphx

root@ea0a4fce183c:/proc/10# diff -u /tmp/maps6 /tmp/maps7
--- /tmp/maps6	2016-09-06 00:17:49.464078812 +0000
+++ /tmp/maps7	2016-09-06 00:42:58.275517610 +0000
@@ -1,7 +1,7 @@
 564fdc34d000-564fdc637000 r-xp 00000000 00:2e 68                         /usr/local/bin/ruby
 564fdc836000-564fdc83d000 rw-p 002e9000 00:2e 68                         /usr/local/bin/ruby
 564fdc83d000-564fdc84d000 rw-p 00000000 00:00 0 
-564fdd644000-564fde03b000 rw-p 00000000 00:00 0                          [heap]
+564fdd644000-564fde3a4000 rw-p 00000000 00:00 0                          [heap]
 7f63fd3fb000-7f63fd421000 r-xp 00000000 00:2e 34                         /lib/x86_64-linux-gnu/libtinfo.so.5.9

evanphx

#!/usr/bin/env ruby

require 'bundler'

gems = ARGV

if gems.empty?
  puts "Updating all gems"

  Bundler.definition(true)