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Graham Perrin

milek's blog: What's New in OpenZFS - 0 views

  • August 16, 2013
  • L2ARC in memory overhead should be reduced
  • new features in Open (Illumos) ZFS. Some of the performance improvements
  • ...13 more annotations...
  • equivalents in Solaris 11 for some time
  • arc doesn't always need to make a copy
  • SUNBT6913905 IMPLEMENT ATA TRIM, SCSI WRITE SAME / UNMAP , THIN RECLAMATION
  • ZFS I/O priority inversion
  • Dedup of null blocks could use special treatment
  • What's New in OpenZFS
  • ARC metadata limit can have serious adverse effect on dedup performance
  • arc_meta_limit modernization
  • encryption, up-to 1MB recordsize, RAID-Z/mirror hybrid allocator, it does support 4k sector
  • good to see though that both Illumos and Oracle are innovating
  • LZ4 support in Illumos which is not in Solaris 11
  • they do not actively share code
  • competition might be good
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