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A Smackerel of OpinionBlog about Ubuntu from a kernel engineer
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A Smackerel of Opinion | smackerelofopinion.blogspot.com Reviews
https://smackerelofopinion.blogspot.com
Blog about Ubuntu from a kernel engineer
smackerelofopinion.blogspot.com
A Smackerel of Opinion: May 2015
http://smackerelofopinion.blogspot.com/2015_05_01_archive.html
A Smackerel of Opinion. Notes and jottings from an Ubuntu Kernel Engineer. Sunday, 31 May 2015. Adding perf stats to stress-ng. Over the last few weeks I have been toying with the idea of adding more performance monitoring to stress-ng so one can see how much a stress test impacts on the CPU. The obvious choice to get such low level data is via Linux perf events. Using perf event open(2). Note how the cache-flushing not only causes a far higher cache miss rate, but also reduces the effective number of in...
A Smackerel of Opinion: May 2014
http://smackerelofopinion.blogspot.com/2014_05_01_archive.html
A Smackerel of Opinion. Notes and jottings from an Ubuntu Kernel Engineer. Sunday, 18 May 2014. Smemstat: a new tool to report shared memory usage. Back in April I wrote smemstat. In to dump out the per process shared memory usage based on the memory mapping data from /proc/$pid/smaps. I tried to make smemstat as compact as possible with minimised changes in heap size to reduce the impact on the total system shared memory statistics. Examples of smemstat can be found here. Sunday, May 18, 2014.
A Smackerel of Opinion: February 2015
http://smackerelofopinion.blogspot.com/2015_02_01_archive.html
A Smackerel of Opinion. Notes and jottings from an Ubuntu Kernel Engineer. Monday, 23 February 2015. Fnotifystat - a tool to show file system activity. Over the past year or more I was focused on identifying power consuming processes on various mobile devices. One of many strategies to reducing power is to remove unnecessary file system activity, such as extraneous logging, repeated file writes, unnecessary file re-reads and to reduce metadata updates. An open(2), read(2)/write(2) and close(2) sequence b...
A Smackerel of Opinion: July 2015
http://smackerelofopinion.blogspot.com/2015_07_01_archive.html
A Smackerel of Opinion. Notes and jottings from an Ubuntu Kernel Engineer. Wednesday, 15 July 2015. Stress-ng adds more features. Since I last wrote about perf being added to stress-ng back in the end of May. I have been busy in my spare time adding more features to stress-ng. Ptrace - traces a child process performing many simple system calls. Sigsuspend - sends SIGUSR1 signals to multiple children waiting on sigsuspend(2). Quota - exercise various quotactl(2) Q GET* commands. Yaml option to dump stats ...
A Smackerel of Opinion: Installing Intel Microcode Updates
http://smackerelofopinion.blogspot.com/2010/03/installing-intel-microcode-updates.html
A Smackerel of Opinion. Notes and jottings from an Ubuntu Kernel Engineer. Friday, 26 March 2010. Installing Intel Microcode Updates. It is not unknown for personal computers to be shipped with subtle and rarely occurring bugs in the x86 processor. Normally these bugs can be fixed with microcode updates that get loaded by the BIOS at boot time. However, re-flashing a BIOS may be deemed to risky (since it can brick a machine) or perhaps one can no longer get BIOS updates to an older machine. My favourite ...
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dinosaursareforever.blogspot.com
Dinosaurs are Forever: manually deploying openstack with a virtual maas on ubuntu trusty (part 2)
http://dinosaursareforever.blogspot.com/2014/06/manually-deploying-openstack-with_16.html
Monday, June 16, 2014. Manually deploying openstack with a virtual maas on ubuntu trusty (part 2). In the previous post, I went over how to setup a virtual MAAS environment using KVM [ 1. Here I will explain how to setup Juju for use with this environment. For this setup, we’ll use the maas-server as the juju client to interact with the cluster. This guide was very useful:. Https:/ maas.ubuntu.com/docs/juju-quick-start.html. Update to the latest stable tools:. Sudo apt-get install juju-core. Juju status ...
dinosaursareforever.blogspot.com
Dinosaurs are Forever: July 2014
http://dinosaursareforever.blogspot.com/2014_07_01_archive.html
Tuesday, July 1, 2014. Using ktest.pl with ubuntu. Bisecting the kernel is one of those tasks that's time-consuming and error prone. Ktest.pl is a script that lives in the linux kernel source tree [ 1. That helps to automate this process. The script is extremely extensible and as such takes times to understand which variables need to be set and where. In this post, I'll go over how to perform a kernel bisection using a VM as the target machine. In this example I'm using 'ubuntu' as the VM name. Get an ap...
dinosaursareforever.blogspot.com
Dinosaurs are Forever: getting kernel crashdumps for hung machines
http://dinosaursareforever.blogspot.com/2014/10/getting-kernel-crashdumps-for-hung.html
Friday, October 31, 2014. Getting kernel crashdumps for hung machines. Debugging hung machines can be a bit tricky. Here I'll document methods to trigger a crashdump when these hangs occur. What exactly does it mean when a machine 'hangs' or 'freezes-up'? More information can be found in the kernel documentation [ 1. In order to setup crashdump, on an Ubuntu machine we can do the following. First we need to install and setup crashdump, more info can be found here [ 2. Sudo apt-get install linux-crashdump.
dinosaursareforever.blogspot.com
Dinosaurs are Forever: using ktest.pl with ubuntu
http://dinosaursareforever.blogspot.com/2014/07/using-ktestpl-with-ubuntu.html
Tuesday, July 1, 2014. Using ktest.pl with ubuntu. Bisecting the kernel is one of those tasks that's time-consuming and error prone. Ktest.pl is a script that lives in the linux kernel source tree [ 1. That helps to automate this process. The script is extremely extensible and as such takes times to understand which variables need to be set and where. In this post, I'll go over how to perform a kernel bisection using a VM as the target machine. In this example I'm using 'ubuntu' as the VM name. Get an ap...
JFo Drivel: A growing service industry problem
http://jeremy-foshee.blogspot.com/2012/11/a-growing-service-industry-problem.html
Thursday, November 8, 2012. A growing service industry problem. Not that long ago I posted two separate stories concerning unhelpfulness. Today I read a story. That brought both together. I think this the perfect time to revisit these two subjects in one post. Please keep in mind as you read this that these are my thoughts on the subject as they currently stand. Now to the backstory. James Isherwood. Strikes me as an everyman with a love of food. He has a blog. Even with the previous statement, I stand i...
JFo Drivel: September 2010
http://jeremy-foshee.blogspot.com/2010_09_01_archive.html
Friday, September 3, 2010. Ubuntu Kernel Team Triage Summit. Since I've already blogged about it here. I'll refrain from boring you with the detail there already. What I will say is that I am very excited about this Summit. It is the first of its kind and I am really hoping that I haven't stunted it due to my failure to evangelize it enough before now. There simply hasn't been the time. Couple that with e-mail issues of my own creation and you have a recipe for failure. Subscribe to: Posts (Atom).
JFo Drivel: October 2012
http://jeremy-foshee.blogspot.com/2012_10_01_archive.html
Saturday, October 20, 2012. Unhelpful community is unhelpful. Or "How to ensure no one takes your advice seriously ever again". I see far too much of this in my daily research. Step 1: (person seeking help): I need help doing X (replace X with any number of things). Step 2: (self-important community assclown) You shouldn't be doing that. You should 'solve for Y' instead. (solving for Y in this case has absolutely zero value for person seeking help). Step 3: .crickets. HELP THE PERSON FIRST! What not to do.
JFo Drivel: UEFI vs. Root Canal, You decide!
http://jeremy-foshee.blogspot.com/2012/09/uefi-vs-root-canal-you-decide.html
Sunday, September 2, 2012. UEFI vs. Root Canal, You decide! On to my thoughts of Windows 8. Lest anyone think I have become over exuberant in my detraction from Windows or even my praise of those things I have always found taxing having been resolved, I will now turn some attention to OS testing I performed on Ubuntu 12.04. I leave you now with some reference information on gdisk a GPT fdisk tool and some of the information from the Ubuntu community regarding UEFI that I found useful. View my complete pr...
JFo Drivel: Unhelpful community is unhelpful
http://jeremy-foshee.blogspot.com/2012/10/unhelpful-community-is-unhelpful.html
Saturday, October 20, 2012. Unhelpful community is unhelpful. Or "How to ensure no one takes your advice seriously ever again". I see far too much of this in my daily research. Step 1: (person seeking help): I need help doing X (replace X with any number of things). Step 2: (self-important community assclown) You shouldn't be doing that. You should 'solve for Y' instead. (solving for Y in this case has absolutely zero value for person seeking help). Step 3: .crickets. HELP THE PERSON FIRST! What not to do.
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smackercracker (Xenofretes) - DeviantArt
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Reviewing Wake Up Now at Smackerel
Reviewing Wake Up Now at Smackerel. November 14, 2014. So your probably on this page because you are curious about the Wake Up Now. Well take a deep breath, and brace yourself. Because what I am about to tell you might disturb you to the core. Especially if you have already joined this supposed incredible opportunity. Wake Up Now Reps beware! The reason for this is… Brace yourself, this company is in MASSIVE DEBT! Can you make money in this industry?
smackerelofopinion.blogspot.com
A Smackerel of Opinion
A Smackerel of Opinion. Notes and jottings from an Ubuntu Kernel Engineer. Friday, 7 August 2015. More ACPI table tests in fwts 15.08.00. The Canonical Hardware Enablement Team and myself are continuing the work to add more ACPI table tests to the Firmware Test Suite. Fwts) The latest 15.08.00. Release added sanity checks for the following tables:. FPDT (Firmware Performance Data Table). IORT ( IO Remapping Table. MCHI ( Management Controller Host Interface. STAO ( Status Override Table. Mmapfork - rapid...
smackerelofsomething.wordpress.com
Time for a smackerel of something | a love affair with all things edible
Time for a smackerel of something. A love affair with all things edible. Mexican Food Made Simple. The photographs are excellent although there just aren’t enough for my liking. Only one in four recipes tends to have a picture of the finished dish which I think is a shame as I’d prefer to see more. Here are 5 of my favorite recipes:. Black bean sopa Azteca (soup). Sweet and spicy pecan nut and goat’s cheese salad. Ham and cheese empanadas. Chicken and chorizo in an almond mole. You might like these.
SMACKERJACK SHOW BULLDOGS, KENT, ENGLAND. BULLDOG STUD, BULLDOG PUPPIES
Hello and welcome to my website! Enjoy surfing my pages and don't hesitate to contact me with any questions you may have. JOHN SARGEANT, SHAKEN NOT STIRRED. Updated:15.10.2013- Puppies. Since 12.09.08: Visitors This month: This week: Today: Online:. No part of this web site may be reproduced or transmitted in any form or by any means, without written permission from Design by Ewa Studio.
smackerlacquer - nail polish and science
Nail polish and science. Sally Hansen Big Peel Off Base Coat Review. August 16, 2015. I finally picked up Sally Hansen Big Peel Off Base Coat and have a another review for you today. I’ve been trying to find a good peel off base coat so I was curious if this was going to be any better than liquid latex, Yellow Stopper or just plain old glue. Posted in Nail Art. NEW L’Oréal Infallible Pro-Last Nailcolor (double-ended) Review. August 9, 2015. August 12, 2015. Keep reading to find out! Posted in Nail Art.
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