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    Looks like the real fix for me is setting KDE...

    Looks like the real fix for me is setting KDE Tearing Prevention to Full scene repaints -- no tearing in vlc, mpv, or mplayer. Not not sure why mpv seemed better earlier.

    Thanks, Baconmon, for...
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    I've played with the KDE tearing options, and,...

    I've played with the KDE tearing options, and, nvidia driver has some vsync settings too. mpv is just making it work, so problem solved :cool: !

    Update:
    Oh no, I was messing with some of the...
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    Wow, just installed mpv 0.4.1 (thank you ARCH) ! ...

    Wow, just installed mpv 0.4.1 (thank you ARCH) ! Absolutely no video tearing using nVidia vdpau on a 3-headed display under KDE with full compositing. Doesn't matter which monitor I drag to and go...
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    I played with this release a little last night...

    I played with this release a little last night and today. This release is looking very cool. Installation on a ZFS-encrypted root was simple and worked well. The new pkg tool is nice and fast at...
  5. Writing several gigs to slow usb was a major...

    Writing several gigs to slow usb was a major issue for me too. After reading this article: http://www.novell.com/support/kb/doc.php?id=7010287 and setting a few limits in my /etc/sysctl.conf,...
  6. zram.txt file, line 1: zram: Compressed RAM...

    zram.txt file, line 1:

    zram: Compressed RAM based block devices

    Looks like the official name is zram .
  7. ZRAM has worked very well for me for swap. I...

    ZRAM has worked very well for me for swap. I tried turning it off on a machine a few days ago in order to switch to the newer frontswap/cleancache/zcache with a recent 3.10 kernel. Unfortunately,...
  8. This release compiles on the 3.10 kernels patch...

    This release compiles on the 3.10 kernels patch free. Thanks NVIDIA!
  9. By default, fs_mark writes a bunch of 0's to a...

    By default, fs_mark writes a bunch of 0's to a file in a 16k chunks, calls close followed by an fsync followed by a mkdir call.


    [pid 13710] write(5,...
  10. raid10 is expected to be faster than raid5 under...

    raid10 is expected to be faster than raid5 under a heavy read/write workload.
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    @Rallos Zek As the above benchmarks and user...

    @Rallos Zek

    As the above benchmarks and user testimony prove, zfs on linux is not slow, so your statement has been proven false. Why the hostility? CDDL ?
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    My Dbench Results

    I'll preface this by saying I'm a happy production system zfs on linux user and a ( very small ) contributor to the project. ZOL isn't perfect, but many of us use it day to day in production...
  13. My initial impressions with EnhanceIO are very...

    My initial impressions with EnhanceIO are very positive.

    The installation was simple, it required copying the source directory to a linux kernel source folder, running a patch to get the source...
  14. A follow up to my flashcache issue I made...

    A follow up to my flashcache issue I made reference too--seems flashcache has issues working with my 3TB 4k sector drive.
  15. I spoke too soon. Back to a 3.6 kernel.

    I spoke too soon. Back to a 3.6 kernel.
  16. Understood. The need was testing the ability of...

    Understood. The need was testing the ability of using a cache device without the zfs/spl dependencies.
  17. Initial tests using 3.7.2 look positive. I...

    Initial tests using 3.7.2 look positive. I haven't seen the lockups I mentioned I had under 3.7.1 .
  18. This is good news. I've been using the...

    This is good news. I've been using the capabilities of the zfs/zfsonlinux l2arc, but was just testing out flashcache again yesterday on non-zfs filesystems. Bcache is the only other current product...
  19. I think the problem is much more than a single...

    I think the problem is much more than a single driver or a simple performance regression. I updated a machine with gigabit Broadcom network to 3.7.1 . I started seeing processes hang when...
  20. It's easy enough to run under the latest kernel...

    It's easy enough to run under the latest kernel if you want to. I'm running 3.5.1 and 3.5.2 on several Debian machines ( Wheezy and Squeeze )

    On Debian, it's a pretty quick and painless process...
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