On Sun, 14 May 2000, Rik van Riel wrote:
> Mark the zone as a "steal-before-allocate" zone while
> one user process is in the page stealer because it
> could not find an easy page.
this i believe is fundamentally single-threaded (and now with the latest
Linus VM we have massively parallel allocation points). The problem is not
to notice low memory situations (we already have the low_on_memory flag),
the problem is to un-anonymize resulting free pages. Anonym freeing ==
unfairness, which unfairness ultimately leads to NULL gfp and bad
allocation latency.
Ingo
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This archive was generated by hypermail 2b29 : Mon May 15 2000 - 21:00:24 EST