Date: Mon, 22 Nov 2010 00:34:53 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: tmpfs out of space (ZFS related?) Message-ID: <iccaau$c3s$1@dough.gmane.org> In-Reply-To: <AANLkTi=aUKiJvLToM6PX0Nsc-tEtNZdzHgWAsJNVr-2T@mail.gmail.com> References: <icc2ih$e5t$1@dough.gmane.org> <AANLkTi=Aw3KQqeDy1Bxn7tJrsvOn-D=y-ChCOpVu4E8N@mail.gmail.com> <20101121214720.356984cc@core.draftnet> <AANLkTimaKY0t4mGtsncSC9dV5SkUdfE%2BMWY5=4F=Xi7X@mail.gmail.com> <AANLkTin1QBZF6KnryEe13-rAk%2BBJOw6uUbyyWq1ef3Co@mail.gmail.com> <icc77q$mo$1@dough.gmane.org> <AANLkTi=aUKiJvLToM6PX0Nsc-tEtNZdzHgWAsJNVr-2T@mail.gmail.com>
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On 11/22/10 00:28, Paul B Mahol wrote: > Find way to reproduce it 100%. The way I described it can be used to reproduce the problem 100%. Detailed instructions for a test case would be something like this: 0) configure a system with tmpfs for /tmp 1) install PostgreSQL 9.0, use a ZFS file system for the database 2) install and use pgbench to initialize a database as large as physical memory (i.e. it will blow away all caches) 3) run pgbench with -c of around 10 or so, let it run for 5 minutes or so 4) stop PostgreSQL, observe reported free memory statistics etc.
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