usr/src/test/zfs-tests/tests/functional/rsend/send-c_verify_ratio.ksh

   1 #!/usr/bin/ksh
   2
   3 #
   4 # This file and its contents are supplied under the terms of the
   5 # Common Development and Distribution License ("CDDL"), version 1.0.
   6 # You may only use this file in accordance with the terms of version
   7 # 1.0 of the CDDL.
   8 #
   9 # A full copy of the text of the CDDL should have accompanied this
  10 # source.  A copy of the CDDL is also available via the Internet at
  11 # http://www.illumos.org/license/CDDL.
  12 #
  13
  14 #
  15 # Copyright (c) 2015 by Delphix. All rights reserved.
  16 #
  17
  18 . $STF_SUITE/tests/functional/rsend/rsend.kshlib
  19 . $STF_SUITE/include/properties.shlib
  20
  21 #
  22 # Description:
  23 # Verify that the amount of data in a send -c stream matches compressratio.
  24 #
  25 # Strategy:
  26 # 1. For random compression types, and compressible / incompressible data:
  27 # 2. Create a snap with data
  28 # 3. Compare the size of the stream with the data on the dataset, adjusted
  29 #    by compressratio for normal send, and compared to used for send -c.
  30 #
  31
  32 verify_runnable "both"
  33
  34 log_assert "Verify send -c streams are compressed"
  35 log_onexit cleanup_pool $POOL2
  36
  37 typeset sendfs=$POOL2/$FS
  38 typeset megs=128
  39
  40 for prop in $(get_rand_compress_any 6); do
  41         for compressible in 'yes' 'no'; do
  42                 log_must zfs create -o compress=$prop $sendfs
  43
  44                 if [[ $compressible = 'yes' ]]; then
  45                         write_compressible $(get_prop mountpoint $sendfs) \
  46                             ${megs}m
  47                 else
  48                         typeset file="$(get_prop mountpoint $sendfs)/ddfile"
  49                         log_must dd if=/dev/urandom of=$file bs=1024k count=$megs
  50                 fi
  51
  52                 log_must zfs snapshot $sendfs@snap
  53
  54                 # Calculate the sizes and verify the compression ratio.
  55                 log_must eval "zfs send $sendfs@snap >$BACKDIR/uncompressed"
  56                 verify_stream_size $BACKDIR/uncompressed $sendfs
  57
  58                 log_must eval "zfs send -c $sendfs@snap >$BACKDIR/compressed"
  59                 verify_stream_size $BACKDIR/compressed $sendfs
  60
  61                 log_must rm $BACKDIR/uncompressed $BACKDIR/compressed
  62                 log_must zfs destroy -r $sendfs
  63         done
  64 done
  65
  66 log_pass "Verify send -c streams are compressed"