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Improve align() by using process substitution (replace named pipe) #48

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Improve align() by using process substitution (replace named pipe) #48

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@pfxuan pfxuan commented Sep 22, 2015

Hi @cc2qe , I created a patch for aligh(), which also can apply to realigh(). I found this patch can:

  • simplify implementation
  • avoid to create intermediate named pipes
  • slightly improve performance

Running time of named pipe on default example:

real    0m12.965s
user    0m13.404s
sys 0m0.958s

Running time of process substitution on default example:

real    0m12.304s
user    0m13.087s
sys 0m0.895s

@pfxuan
Improve align() by using process substitution (replace named pipe).
efa0733 
- simplify implementation
- avoid to create intermediate named pipes
- improve performance
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