#!/bin/ksh -p # # CDDL HEADER START # # The contents of this file are subject to the terms of the # Common Development and Distribution License (the "License"). # You may not use this file except in compliance with the License. # # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE # or http://www.opensolaris.org/os/licensing. # See the License for the specific language governing permissions # and limitations under the License. # # When distributing Covered Code, include this CDDL HEADER in each # file and include the License file at usr/src/OPENSOLARIS.LICENSE. # If applicable, add the following below this CDDL HEADER, with the # fields enclosed by brackets "[]" replaced with your own identifying # information: Portions Copyright [yyyy] [name of copyright owner] # # CDDL HEADER END # # # Copyright 2007 Sun Microsystems, Inc. All rights reserved. # Use is subject to license terms. # # # Copyright (c) 2013, 2016 by Delphix. All rights reserved. # . $STF_SUITE/include/libtest.shlib . $STF_SUITE/tests/functional/compression/compress.cfg # # DESCRIPTION: # Create two files of exactly the same size. One with compression # and one without. Ensure the compressed file is smaller. # # NOTE: This test uses a dataset rather than a simple file system. # # STRATEGY: # Create a dataset, turn on compression and create files before # and after the property change. The compressed file should be smaller. # verify_runnable "both" typeset OP=create log_assert "Ensure that compressed files in a dataset are smaller." log_note "Ensure compression is off" log_must zfs set compression=off $TESTPOOL/$TESTCTR log_note "Writing file without compression..." log_must file_write -o $OP -f $TESTDIR1/$TESTFILE0 -b $BLOCKSZ \ -c $NUM_WRITES -d $DATA log_note "Add compression property to the dataset and write another file" log_must zfs set compression=on $TESTPOOL/$TESTCTR log_must file_write -o $OP -f $TESTDIR1/$TESTFILE1 -b $BLOCKSZ \ -c $NUM_WRITES -d $DATA sleep 60 FILE0_BLKS=`du -k $TESTDIR1/$TESTFILE0 | awk '{ print $1}'` FILE1_BLKS=`du -k $TESTDIR1/$TESTFILE1 | awk '{ print $1}'` if [[ $FILE0_BLKS -le $FILE1_BLKS ]]; then log_fail "$TESTFILE0 is smaller than $TESTFILE1" \ "($FILE0_BLKS <= $FILE1_BLKS)" fi log_pass "$TESTFILE0 is bigger than $TESTFILE1 ($FILE0_BLKS > $FILE1_BLKS)"