tests/zfs-tests/tests/functional/trim/trim.kshlib

   1 #!/bin/ksh -p
   2 #
   3 # This file and its contents are supplied under the terms of the
   4 # Common Development and Distribution License ("CDDL"), version 1.0.
   5 # You may only use this file in accordance with the terms of version
   6 # 1.0 of the CDDL.
   7 #
   8 # A full copy of the text of the CDDL should have accompanied this
   9 # source.  A copy of the CDDL is also available via the Internet at
  10 # http://www.illumos.org/license/CDDL.
  11 #
  12
  13 #
  14 # Copyright (c) 2019 by Tim Chase. All rights reserved.
  15 # Copyright (c) 2019 Lawrence Livermore National Security, LLC.
  16 #
  17
  18 . $STF_SUITE/tests/functional/cli_root/zpool_trim/zpool_trim.kshlib
  19
  20 #
  21 # Get the actual size on disk for the provided file.
  22 #
  23 function get_size_mb
  24 {
  25         typeset rval=$(du --block-size 1048576 -s "$1" | awk '{print $1}')
  26         echo -n "$rval"
  27 }
  28
  29 #
  30 # Get the number of trim IOs issued for the pool (ind or agg).
  31 #
  32 function get_trim_io
  33 {
  34         typeset pool="${1-:$TESTPOOL}"
  35         typeset type="${2-:ind}"
  36         typeset rval
  37
  38         # Sum the ind or agg columns of the trim request size histogram.
  39         case "$type" in
  40         "ind")
  41                 rval=$(zpool iostat -pr $pool | awk \
  42                     '$1 ~ /[0-9].*/ { sum += $12 } END { print sum }')
  43                 echo -n "$rval"
  44                 ;;
  45         "agg")
  46                 rval=$(zpool iostat -pr $pool | awk \
  47                     '$1 ~ /[0-9].*/ { sum += $13 } END { print sum }')
  48                 echo -n "$rval"
  49                 ;;
  50         *)
  51                 log_fail "Type must be 'ind' or 'agg'"
  52                 ;;
  53         esac
  54 }
  55
  56 #
  57 # Verify that trim IOs were send to devices in the pool.
  58 #
  59 function verify_trim_io
  60 {
  61         typeset pool="${1:-$TESTPOOL}"
  62         typeset type="${2:-ind}"
  63         typeset min_trim_ios=${3:-100}
  64         typeset ios
  65
  66         ios=$(get_trim_io $pool $type)
  67         if [[ $ios -ge $min_trim_ios ]]; then
  68                 log_note "Issued $ios $type trim IOs for pool $pool"
  69         else
  70                 log_fail "Too few trim IOs issued $ios/$min_trim_ios"
  71         fi
  72 }
  73
  74 #
  75 # Run N txgs which should be enough to trim the entire pool.
  76 #
  77 function wait_trim_io # pool type txgs
  78 {
  79         typeset pool="${1-:$TESTPOOL}"
  80         typeset type="${2-:ind}"
  81         typeset txgs=${3:-10}
  82         typeset timeout=120
  83         typeset stop_time=$(( $(date +%s) + $timeout ))
  84
  85         typeset -i i=0
  86         while [[ $i -lt $txgs ]]; do
  87                 if [ "$(date +%s)" -ge $stop_time ]; then
  88                         log_fail "Exceeded trim time limit of ${timeout}s"
  89                         return
  90                 fi
  91
  92                 zpool sync -f
  93                 ((i = i + 1))
  94         done
  95
  96         typeset ios=$(get_trim_io $pool $type)
  97         log_note "Waited for $txgs txgs, $ios $type TRIM IOs"
  98 }
  99
 100 #
 101 # Verify that file vdevs against a target value.
 102 #
 103 function verify_vdevs # op size vdevs
 104 {
 105         typeset tgt_op=$1
 106         typeset tgt_size=$2
 107         shift 2
 108         typeset vdevs=$@
 109
 110         for vdev in $vdevs; do
 111                 typeset size=$(get_size_mb $vdev)
 112                 if test $size $tgt_op $tgt_size; then
 113                         log_note "Success $vdev is $size MB which is $tgt_op" \
 114                             "than $tgt_size MB"
 115                 else
 116                         log_fail "Failure $vdev is $size MB which is not" \
 117                             "$tgt_op than $tgt_size MB"
 118                 fi
 119         done
 120 }