From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <54E26953.9070001@kernel.dk> Date: Mon, 16 Feb 2015 15:04:03 -0700 From: Jens Axboe MIME-Version: 1.0 Subject: Re: Bug#776701: ssd-test 1g file size too small References: <54CCD756.7000105@pocock.pro> <13200420.bigzCatb1k@merkaba> In-Reply-To: <13200420.bigzCatb1k@merkaba> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: Martin Steigerwald , Daniel Pocock , 776701@bugs.debian.org, fio@vger.kernel.org List-ID: On 02/04/2015 02:10 AM, Martin Steigerwald wrote: > Hello Daniel, hi Jens, > > Am Samstag, 31. Januar 2015, 14:23:34 schrieb Daniel Pocock: >> Package: fio >> Version: 2.1.11-2 >> Severity: important >> >> >> In the ssd-test sample config: >> >> https://sources.debian.net/src/fio/2.1.11-2/examples/ssd-test.fio/ >> >> >> The test size is 1GB, this line: >> >> size=1g >> >> >> There are SSDs that have 1g caches and this leads to unhelpful results. >> >> One user I discussed this with had to use a 10g test file to get >> consistent and meaningful results. >> >> Maybe bump the example to 10g or add a comment in front of that line. > > As the examples are taken from the upstream tarball, I suggest taking this > upstream. I put upstream in Cc, Jens, what do you think about this? Sure, that sounds fine to me. 1G is tiny by todays standards, 10G would be a lot more reasonable. I'll commit that change. -- Jens Axboe