[Bugs] [Bug 1393419] read-ahead not working if open-behind is turned on

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1393419

Milind Changire <mchangir at redhat.com> changed:

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--- Comment #7 from Milind Changire <mchangir at redhat.com> ---
(In reply to Raghavendra G from comment #6)
> (In reply to Milind Changire from comment #5)
> > here's output of a single run as per test case in comment #0
> > (without dropping kernel caches):
> 
> Its better to drop caches. If we are doing a fresh mount for each test, I
> guess its ok.

I'll do another round of test by doing a fresh mount before each run of "dd"

> 
> > performance.open-behind: off
> 
> Was open-behind off in all runs of dd?

open-behind was turned "off" only for the last run of "dd"

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