[Rpm-maint] [rpm-software-management/rpm] Add macro to force fsync() on close() (#187)

Phil Dibowitz notifications at github.com
Thu Apr 6 19:01:08 UTC 2017

To your other question we're still trying to come up with numbers, the system has many things going on and showing something 100% attributable to this is hard - I'm trying to see if we can get a more exact A/B test.

madvise() doesn't help ensure there's less dirty data in the system, which is different from what you are describing. If the write-queue becomes too long, then anything else that needs to write now has to wait... which doesn't work well with a database load. Now mysql sync's and has to wait for a half-gig of data to be flushed. That's a problem.

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