Date: Fri, 29 Jun 2012 17:51:44 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Fred Morcos <fred.morcos@gmail.com> Cc: Julien Cigar <jcigar@ulb.ac.be>, freebsd-questions@freebsd.org Subject: Re: Anatomy of Perfomance tests Message-ID: <alpine.BSF.2.00.1206291749050.45176@wojtek.tensor.gdynia.pl> In-Reply-To: <CAH3a3KWz0F2Q1bwP%2BmVeqT_73WirSs8Byh-VTV=vSJZmLhPagw@mail.gmail.com> References: <CAKdykDsWhygQz21R=wX8ou70Wd6GnV5SZ%2BNA8AFSDOY69-zikQ@mail.gmail.com> <alpine.BSF.2.00.1206291046510.43578@wojtek.tensor.gdynia.pl> <CAH3a3KVnw-CWCii1NdMAi8xuOZsvvN7Btd53xqJh4jMYhOL3Og@mail.gmail.com> <4FED7815.10102@ulb.ac.be> <alpine.BSF.2.00.1206291311170.44358@wojtek.tensor.gdynia.pl> <CAH3a3KWz0F2Q1bwP%2BmVeqT_73WirSs8Byh-VTV=vSJZmLhPagw@mail.gmail.com>
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>> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > It would be very interesting to see the results of stress-testing > systems. I cannot think of a scenario that isn't possible with a > virtual machine. quite but not really. if tested OS does not force hard disk to commit writes at right time, as FreeBSD do, virtual machine will not catch all things. anyway abruptly stopping virtual machine is a good test. use LARGE memory for tested OS. Funny but this is the case when linux is actually worse as it could delay more writes and then issue them in any order.
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