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Optimizing stable pagesOptimizing stable pagesPosted Dec 10, 2012 17:27 UTC (Mon) by Cyberax (✭ supporter ✭, #52523)In reply to: Optimizing stable pages by butlerm Parent article: Optimizing stable pages
CoW using VM tricks is quite often _inferior_ in speed to simple copying.
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Optimizing stable pages Posted Dec 10, 2012 18:11 UTC (Mon) by dlang (✭ supporter ✭, #313) [Link]
> CoW using VM tricks is quite often _inferior_ in speed to simple copying.
COW is slower if the copy actually needs to take place, but faster if the copy is never needed.
The question is how likely are you to need to do the copy.
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