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Jonathan Briggs
Works at zvelo, Inc.
Attended University of Colorado at Boulder
Lives in Greenwood Village, CO
110 followers|122,791 views
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Jonathan Briggs

General Discussion  - 
 
I removed the "discard" options from my laptop's SSD mount points in /etc/fstab and the difference in performance is noticeable.

The laptop IO is much faster without the discard/TRIM turned on. I highly recommend it.

Add a weekly cron job to run "fstrim -a".

It seems that a lot of SSDs have to serialize a TRIM command, which is like running a sync in the middle of your IO. Or if the SSD does have NCQ TRIM it does it wrong and corrupts the data.
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Tyler Cox (Sandman007)'s profile photoMichael Mol's profile photo
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You can set the NCQ depth down.

What you'll find, long term, is that without having discard enabled, or at least without periodically going through the discard process on the entire FS, is that the drive will get slower and slower over time.
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Jonathan Briggs

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I was thinking about Virtual Reality like the upcoming Oculus system, and I was thinking about game engines.

It seems to me that developers should rethink how they write game engines. Right now, performance varies a lot from frame to frame, depending on what's going on and how many objects are visible, and the complications of vertices, shaders, etc.

I think that game devs should design the engines to run a fixed performance loop. Have a fixed array of objects and process every one of them every frame even if that object slot is unused. Have a maximum number of vertices, textures, etc, and always assume that the maximum is in use. Run a test loop for performance calibration at startup and adjust settings and limits as needed.

If a user of the game engine tries to exceed the limits, just reject it. Yes that means some of the orcs or space fighters won't appear in the game world.

Then run the physics and render pipelines in real-time threads so that the operating system fetching email or whatever won't disturb the frame rates.

I think a technique like that could absolutely guarantee a 90 FPS experience in a VR game.
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Jonathan Briggs

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Today I figured out the correct combination of UEFI options to get my Gigabyte X99 to boot while a Thrustmaster Warthog HOTAS is connected.

The secret is XHCI to Enabled, EHCI and XHCI Handoff to Enabled. The XHCI Auto or Smart Auto just screw things up.
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Jonathan Briggs

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I guess I'm a pangolin. I'd never heard of one before. So that's new.
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Brian Renninger's profile photo
 
Komodo Dragon!
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Jonathan Briggs

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I want that Boba Fett and Stormtrooper. They're great.
 
Check out some images of amazing-looking Stormtrooper, Boba Fett, and Darth Vader action figures as designed by Square Enix.
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Jonathan Briggs

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#GNOME has astonished me again with how useless the devs have managed to make it. This Is Linux! Not kindergarten!

This time I just realized there's no way to right-click and Edit a desktop file in #Nautilus. Come on. Even Windows Explorer has more options than this.
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Jonathan Briggs's profile photoSriram Ramkrishna (sri)'s profile photo
3 comments
 
you can probably hit properties and for that mime-type you can set it to gedit or gvim.  So that it opens it by default.
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Jonathan Briggs

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So true, so true.
 
a state i have once experienced.. enjoy the coming week friends
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Jonathan Briggs

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"Comon' little one ...you can make it!"

Follow me for  daily funny updates +omar bessi​   :)
#Amazing      #Awesome   #CatLovers   #Cats     #Cute   #Funny   #FunnyGifs   #Gifs   #Hilarious   #Humor   #Kitten   #lol   #dogs 
must see !! ► www.youtube.com/watch?v=575e6k4Wz68
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Jonathan Briggs

Discussion  - 
 
Gnome Boxes is a cheesy copy of virt-manager with less features and bigger buttons.

Why was it written and why is it some big feature of Fedora? It gets a big feature box on the Fedora Workstation page.

I tried it once. I wasn't impressed.
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Sudhir Khanger's profile photoNicu Buculei's profile photoKunal Dongre's profile photoGiuseppe Scrivano's profile photo
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Boxes should give you a ready to use VM with fewer clicks, while virt-manager allows users to tweak configuration better. Virt-manager itself should not be used for more than 15-20 virtual machines. Choose the one that fits the best for you.
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Really neat.
 
Star Wars - Imperial March on Eight Floppy Drives: https://youtu.be/cM_sAxrAu7Q

What did the floppy drive say the CD player
"I'm your father"
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I have a useful tip for anyone who loses their mouse pointer on the desktop like I do.

I have a laptop with a high DPI screen and I use an external 4K monitor with it. The mouse pointer is very small and easy to lose. I needed a way to find it quickly.

Enter xdotool! This handy command-line tool lets you script mouse and keyboard events. I am using it to move the mouse pointer to a known position. The center of the screen, or close enough. It isn't the real center because it finds the center based on all the active displays.

So I went into the Gnome Settings, Keyboard, Shortcuts, Custom Shortcuts and made a new one called Center Mouse. I set the command to:
    xdotool mousemove --polar 0 0

Then hit Apply. Then set the shortcut keys. It took me a while to figure this out, but I needed to HOLD DOWN the mouse button on the event, and then press the shortcut I wanted to use. Control-Shift-Z in this case.

After I did that I can press Control-Shift-Z and the mouse jumps to where I can easily find it.

No more looking all around trying to find it!
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Luke Ashe-Browne's profile photoMarcus Larborg's profile photoJonathan Briggs's profile photo
7 comments
 
That was fast Marcus! Congratulations. You win ... A Kudo!
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People
In his circles
201 people
Have him in circles
110 people
William Meyerholtz's profile photo
Chris Ernst's profile photo
Viridian's profile photo
denhac's profile photo
Bobby Hardenbrook's profile photo
Shabnam Shanizadehasli's profile photo
Arif Gangji's profile photo
Patrick Edward Penetrante's profile photo
Nick Evans's profile photo
Work
Occupation
I program computers and solve fun problems.
Employment
  • zvelo, Inc.
    Software Development Engineer, 2010 - present
  • eSoft, Inc.
    Software Development Engineer, 2000 - 2010
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Greenwood Village, CO
Previously
Boulder, CO - Fairfield, CA - Phoenix, AZ
Contact Information
Work
Phone
(720) 897-2113 x107
Email
Story
Tagline
This is not the guy you are looking for. Move along. Move along.
Education
  • University of Colorado at Boulder
    Computer Science, 1993 - 1994
  • Union College
    1995 - 1996
  • DeVry University
    Computer Information Systems, 1997 - 1998
Basic Information
Gender
Male
Other names
Jon Briggs, Zan Lynx
This is a late review. Some time in 2012 I brought my 2005 WRX STI in for a 125,000 mile service. The mechanics told me it needed replacement boots on the front CV joints. I had that double-checked and it turns out they were liars. The boots were fine. I had the rest of the work done at Flatirons Subaru in Boulder. They have never done me wrong. And the boots were still in good shape when I did a trade-in for a new STI in Boulder. I am going to be giving this AutoNation another shot with my 2013 Subaru. Maybe they have improved.
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Public - 3 months ago
reviewed 3 months ago
I come here with friends about once a month and love it every time. Sure, sometimes they have a problem and you get dry bread sticks or slow service. But in my experience it is almost always a good night.
Public - 11 months ago
reviewed 11 months ago
Public - 3 years ago
reviewed 3 years ago
Public - 3 years ago
reviewed 3 years ago
11 reviews
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I love the Efrain burrito. The green chili is hot and tasty. On the downside, the wait to get a table is awful and I don't think they have enough wait staff.
Public - 4 years ago
reviewed 4 years ago