libgo/go/runtime/proc_runtime_test.go

   1 // Copyright 2016 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build ignore
   6
   7 // Proc unit tests. In runtime package so can use runtime guts.
   8
   9 package runtime
  10
  11 func RunStealOrderTest() {
  12         var ord randomOrder
  13         for procs := 1; procs <= 64; procs++ {
  14                 ord.reset(uint32(procs))
  15                 if procs >= 3 && len(ord.coprimes) < 2 {
  16                         panic("too few coprimes")
  17                 }
  18                 for co := 0; co < len(ord.coprimes); co++ {
  19                         enum := ord.start(uint32(co))
  20                         checked := make([]bool, procs)
  21                         for p := 0; p < procs; p++ {
  22                                 x := enum.position()
  23                                 if checked[x] {
  24                                         println("procs:", procs, "inc:", enum.inc)
  25                                         panic("duplicate during enumeration")
  26                                 }
  27                                 checked[x] = true
  28                                 enum.next()
  29                         }
  30                         if !enum.done() {
  31                                 panic("not done")
  32                         }
  33                 }
  34         }
  35 }