Date: Thu, 19 Dec 2013 15:46:39 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: Peter Holm <peter@holm.cc> Cc: freebsd-fs <freebsd-fs@FreeBSD.org> Subject: Re: namecache: numneg > 0 but ncneg is empty Message-ID: <52B2F8BF.9050504@FreeBSD.org> In-Reply-To: <20131219081218.GA12747@x2.osted.lan> References: <52B16847.8090905@FreeBSD.org> <20131219070350.GM59496@kib.kiev.ua> <52B2A6AC.3070902@FreeBSD.org> <20131219081218.GA12747@x2.osted.lan>
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on 19/12/2013 10:12 Peter Holm said the following: > On Thu, Dec 19, 2013 at 09:56:28AM +0200, Andriy Gapon wrote: >> Peter, >> >> I am curious about what ideology is behind vfs testing in stress2. I know that >> I can just look at the code myself, but hope that asking you could be faster. >> Does stress2 exercise a certain set of scenarios? Or does it have an element of >> randomness? >> > > The tests found in stress2/testcases does everything in a random > fashion. Could you please add a few words about what kind of randomness is that? E.g. I looked at testcases/rename and it seems to do pretty predictable and linear renaming of files within the same directory. Also, it seems that the test would be aborted should a rename operation fail. But that would be a valid outcome in a truly random / chaotic testing. > Test found in stress2/misc are for the most part scenarios that has > been used for finding specific problems. -- Andriy Gapon
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