From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt1-f179.google.com ([209.85.160.179]:38623 "EHLO mail-qt1-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727711AbgBFUYd (ORCPT ); Thu, 6 Feb 2020 15:24:33 -0500 Received: by mail-qt1-f179.google.com with SMTP id c24so124818qtp.5 for ; Thu, 06 Feb 2020 12:24:32 -0800 (PST) MIME-Version: 1.0 From: Linux Newbie Date: Thu, 6 Feb 2020 12:24:20 -0800 Message-ID: Subject: Hot Cold Filesystem I/O distribution Content-Type: text/plain; charset="UTF-8" Sender: fio-owner@vger.kernel.org List-Id: fio@vger.kernel.org To: fio@vger.kernel.org Hi All, I am a fio newbie. I am writing benchmarks to test the performance improvement with my work. I want to create the following standard scenario: - 90% writes go to 10% of the files (HOT Files) - 10% writes go to 90% of the files (Cooler files) How do I go about doing this? I looked at the zipf distribution and played with theta a bit. However, I can never specify how many times a particular file must be accessed at max - to be able to control this percentage. How can we achieve the above scenario? I appreciate your feedback a lot! Thanks! Best Regards, Surbhi