From mboxrd@z Thu Jan 1 00:00:00 1970 From: Edward Shishkin Subject: Re: Debian Linux Reiser4 -patched Kernel 4.11.12 EOL source Date: Mon, 7 Aug 2017 11:47:55 +0200 Message-ID: <8df9a663-dea9-caca-0326-7aa9b0d8c95e@gmail.com> References: <20170807091136.942E8C7B91F@mictlantecuhtli.metztli-it.com> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding; bh=0RjoTK8KHYZpYheG4fudq3tBNzKEBJq2zvOwFwaMdZg=; b=BhnkIal2JWtgOViHjpxkaAg5GW0vAoms0YF7nFGbpoW0weskqfOuZN18mD6LH+3npa VLqZvkybQFQWB1EHFnExTGqjRUn3VInmnyq06fM6K1L8EUfzB/uGfVckF4nQTWAgEJKm R1xSOmaINZmxiffOxD+BK9kMmChBKHkreK5+oSe53aGqDxfG+5HyIdiWrrSEBqpT3D4N a/UW9o0pkKOO8J/NQuEI6W1EtNBHhJ1QCKjFMdQd8IUrUP2xBWKEezwYScVc9kPjlAQk PeEftBJON/6ubwQRTUiqpWueDxvdRxy8rKZ3ytsY9Z94Ay8D4U3UKo5iVKescOtipdkD WhJg== In-Reply-To: <20170807091136.942E8C7B91F@mictlantecuhtli.metztli-it.com> Sender: reiserfs-devel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="windows-1252"; format="flowed" To: Jose R Rodriguez , reiserfs-devel@vger.kernel.org Yes, rootfs it is one of the best patterns for default mode. But the most impressive performance numbers can be observed on a set of well-squeezable files, if you compress files with only even (or only odd) object IDs (and pass management to unix-file plugin for other files). This phenomenon is not yet investigated. Edward. On 08/07/2017 11:11 AM, Jose R Rodriguez wrote: > Niltze, all- > > Here is a link for reiser4 -patched kernel 4.11.12 end of life (EOL) sour= ce that I used to generate UDEB reiser4 modules, etc. for latest Metztli Re= iser4 debian 9.1 Stretch netboot: > < https://sourceforge.net/p/metztli-reiser4/code/ > > > Please note that upstream 4.11.12-for-4.11.11 patch was applied to debian= kernel 4.11.11-1 and wrapped in its complementing version packaging =E2=80= =93 all hacked for smooth installation of pertinent patches. > > I have local and Google cloud Metztli Reiser4 instances running with abov= e kernel. > > For the cloud this time I decided to try creating an image with (default)= transparent compression reiser4 root fs. What surprised me is how fast and= efficient the reiser4 transparent compression image performs in the Google= cloud instance. I was expecting a noticeable performance penalty but so fa= r it's extremely fast. I am still testing: > < https://metztli.it/readOnlyEphemeral/gce-reiser4_transparent-compressio= n.png > > > After local creation in VirtualBox and subsequent preparation and optimiz= ation for the Google Compute Engine (GCE), the image is tarred and uploaded= to a Google storage repository - from there the image is added (via local = SDK or web console) to an image debian family in one's project. > > If anyone is interested in the reiser4 transparent compression tarred ima= ge ~500MB for their Google Compute Engine project, please let me know. > > > Best Professional Regards. > >