From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Sw=E2mi_Petaramesh?= Subject: Rename BTRfs to MuchSlowerFS ? Date: Mon, 05 Sep 2011 15:51:17 +0200 Message-ID: <4E64D3D5.7020407@petaramesh.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed To: linux-btrfs Return-path: List-ID: Hi list, I don't trust theoretical benchmarks that much and prefer "real-life benchs" on the occasion, so here's mine: Given 4 laptops, the most powerful of which was running BTRFS and the others ext3 or ext4, all machines running Ubuntu 11.04 Natty 32-bit with a stock Ubuntu 2.6.38-11 kernel, all machines were given the following FS-intensive task : - Upgrade O.S. from Ubuntu 11.04 Natty to 11.10 Oneiric (beta), using a local packages apt-cacher. Machines : 1/ Acer Aspire 3104 WLMi, AMD Sempron Mobile 3500+ @1.8 GHz, 1.5 GB RAM, 80 GB SATA HD, ext4 over standard partitions 2/ Asus EeePC 1005PE, Intel Atom N450 @1.66 GHz, 2 GB RAM, 250 GB SATA HD, ext3 over AES-128 encrypted LVM 3/ Compaq Mini CQ10-740SF, Intel Atom N455 @1.66 GHz, 1 GB RAM, 250 GB SATA HD, ext4 over standard partitions 4/ Dell XPS M1330, Intel Core 2 Duo T9300 @2.5 GHz, 2 GB RAM, 160 B SATA HD, BTRFS over AES-128 encrypted LVM Results : All 3 ext3 / ext4 machines took between 60 and 90 minutes to complete their upgrade. BTRFS machine took 20 HOURS so far, still counting (ETA 15 minutes left). Wow. Impressive.