Deactivating disk cache for specific device or partition? (play 2160p video off SD card without sacrificing RAM space other programs need)

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I would like to deactivate the disk cache for /dev/mmcblk0p1 in order to preserve more RAM for other system parts while playing 2160p video off /dev/mmcblk0p1.



2160p videos ravenously wipe the RAM cache from other programs. After watching 2160p video, other programs need to access files from the original disk again because the 2160p video footage occupied the RAM cache.



How can I exclude /dev/mmcblk0p1 selectively from the disk cache?




Related question: How to exclude programs from writing to RAM block cache? (e.g. media player).










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    up vote
    0
    down vote

    favorite












    I would like to deactivate the disk cache for /dev/mmcblk0p1 in order to preserve more RAM for other system parts while playing 2160p video off /dev/mmcblk0p1.



    2160p videos ravenously wipe the RAM cache from other programs. After watching 2160p video, other programs need to access files from the original disk again because the 2160p video footage occupied the RAM cache.



    How can I exclude /dev/mmcblk0p1 selectively from the disk cache?




    Related question: How to exclude programs from writing to RAM block cache? (e.g. media player).










    share|improve this question

























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I would like to deactivate the disk cache for /dev/mmcblk0p1 in order to preserve more RAM for other system parts while playing 2160p video off /dev/mmcblk0p1.



      2160p videos ravenously wipe the RAM cache from other programs. After watching 2160p video, other programs need to access files from the original disk again because the 2160p video footage occupied the RAM cache.



      How can I exclude /dev/mmcblk0p1 selectively from the disk cache?




      Related question: How to exclude programs from writing to RAM block cache? (e.g. media player).










      share|improve this question















      I would like to deactivate the disk cache for /dev/mmcblk0p1 in order to preserve more RAM for other system parts while playing 2160p video off /dev/mmcblk0p1.



      2160p videos ravenously wipe the RAM cache from other programs. After watching 2160p video, other programs need to access files from the original disk again because the 2160p video footage occupied the RAM cache.



      How can I exclude /dev/mmcblk0p1 selectively from the disk cache?




      Related question: How to exclude programs from writing to RAM block cache? (e.g. media player).







      cache ram sd-card data






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      edited 6 mins ago

























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      neverMind9

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