felixge

// Package multiwrap implements support for wrapping multiple errors into a
// single error value that supports the Go 1.13 Unwrap(), Is() and As()
// interface. It's similar to go-multierror [1].
//
// This is a proof of concept and I'm looking for feedback! Maybe somebody has
// already done a nicer version of this idea?
//
// [1] https://godoc.org/github.com/hashicorp/go-multierror
package multiwrap

felixge

  global  main
  extern  printf

  section .text
main:
  sub     rdi, 1  ; argc includes program name, so substract 1 to get arg count
  cmp     rdi, 1  ; check if we got exactly 1 arg
  jne     bad_arg_count ; if not, jump to bad_arg_count
  mov     r15, [rsi+8] ; main's argv[1]
  mov     r14, 0 ; index (also byte count)

felixge

let last = new Date();
setInterval(function () {
  delta = new Date() - last;
  if (delta > 2) {
    console.log(delta);
  }
  last = new Date();
}, 1);

setInterval(function () {

felixge

$ time wc test.txt
 16500000 49252094 2059004431 test.txt

real	0m5.930s
user	0m5.491s
sys	0m0.374s

$ go build wc.go && time ./wc test.txt
16500000 49252094 2059004431

felixge

[
  {
    "Plan": {
      "Node Type": "Nested Loop",
      "Parallel Aware": false,
      "Join Type": "Inner",
      "Startup Cost": 0.01,
      "Total Cost": 17402710335540.01,
      "Plan Rows": 1000000000000000,
      "Plan Width": 20,

felixge

[
  {
    "Plan": {
      "Node Type": "Nested Loop",
      "Parallel Aware": false,
      "Join Type": "Inner",
      "Startup Cost": 0.01,
      "Total Cost": 12522520.01,
      "Plan Rows": 1000000000,
      "Plan Width": 12,

felixge

[
  {
    "Plan": {
      "Node Type": "Seq Scan",
      "Parallel Aware": false,
      "Relation Name": "congrats_on_loading_your_first_gist",
      "Alias": "congrats_on_loading_your_first_gist",
      "Startup Cost": 0.00,
      "Total Cost": 35.50,
      "Plan Rows": 2550,

felixge

[
  {
    "Plan": {
      "Node Type": "Seq Scan",
      "Parallel Aware": false,
      "Relation Name": "congrats_on_loading_your_first_gist",
      "Alias": "congrats_on_loading_your_first_gist",
      "Startup Cost": 0.00,
      "Total Cost": 35.50,
      "Plan Rows": 2550,

felixge

[
  {
    "Plan": {
      "Node Type": "Nested Loop",
      "Parallel Aware": false,
      "Join Type": "Inner",
      "Startup Cost": 0.01,
      "Total Cost": 20010.01,
      "Plan Rows": 1000000,
      "Plan Width": 8,

felixge

postgres=# \timing
Timing is on.
postgres=# SELECT count(*) FROM generate_series(1, 10000);
 count
-------
 10000
(1 row)

Time: 2.587 ms