1#!/bin/ksh -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or https://opensource.org/licenses/CDDL-1.0.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2023 Klara, Inc.
30#
31
32. $STF_SUITE/include/libtest.shlib
33. $STF_SUITE/tests/functional/cli_root/zpool_import/zpool_import.cfg
34. $STF_SUITE/tests/functional/cli_root/zpool_import/zpool_import.kshlib
35
36# test uses 8 vdevs
37export MAX_NUM=8
38
39#
40# DESCRIPTION:
41# 	Verify that pool imports can occur in parallel
42#
43# STRATEGY:
44#	1. Create 8 pools
45#	2. Generate some ZIL records
46#	3. Export the pools
47#	4. Import half of the pools synchronously to baseline sequential cost
48#	5. Import the other half asynchronously to demonstrate parallel savings
49#	6. Export 4 pools
50#	7. Test zpool import -a
51#
52
53verify_runnable "global"
54
55#
56# override the minimum sized vdevs
57#
58VDEVSIZE=$((512 * 1024 * 1024))
59increase_device_sizes $VDEVSIZE
60
61POOLNAME="import_pool"
62
63function cleanup
64{
65	zinject -c all
66	log_must set_tunable64 KEEP_LOG_SPACEMAPS_AT_EXPORT 0
67	log_must set_tunable64 METASLAB_DEBUG_LOAD 0
68
69	for i in {0..$(($MAX_NUM - 1))}; do
70		destroy_pool $POOLNAME-$i
71	done
72	# reset the devices
73	increase_device_sizes 0
74	increase_device_sizes $FILE_SIZE
75}
76
77log_assert "Pool imports can occur in parallel"
78
79log_onexit cleanup
80
81log_must set_tunable64 KEEP_LOG_SPACEMAPS_AT_EXPORT 1
82log_must set_tunable64 METASLAB_DEBUG_LOAD 1
83
84
85#
86# create some exported pools with import delay injectors
87#
88for i in {0..$(($MAX_NUM - 1))}; do
89	log_must zpool create $POOLNAME-$i $DEVICE_DIR/${DEVICE_FILE}$i
90	log_must zpool export $POOLNAME-$i
91	log_must zinject -P import -s 12 $POOLNAME-$i
92done
93wait
94
95#
96# import half of the pools synchronously
97#
98SECONDS=0
99for i in {0..3}; do
100	log_must zpool import -d $DEVICE_DIR -f $POOLNAME-$i
101done
102sequential_time=$SECONDS
103log_note "sequentially imported 4 pools in $sequential_time seconds"
104
105#
106# import half of the pools in parallel
107#
108SECONDS=0
109for i in {4..7}; do
110	log_must zpool import -d $DEVICE_DIR -f $POOLNAME-$i &
111done
112wait
113parallel_time=$SECONDS
114log_note "asyncronously imported 4 pools in $parallel_time seconds"
115
116log_must test $parallel_time -lt $(($sequential_time / 3))
117
118#
119# export pools with import delay injectors
120#
121for i in {4..7}; do
122	log_must zpool export $POOLNAME-$i
123	log_must zinject -P import -s 12 $POOLNAME-$i
124done
125wait
126
127#
128# now test zpool import -a
129#
130SECONDS=0
131log_must zpool import -a -d $DEVICE_DIR -f
132parallel_time=$SECONDS
133log_note "asyncronously imported 4 pools in $parallel_time seconds"
134
135log_must test $parallel_time -lt $(($sequential_time / 3))
136
137log_pass "Pool imports occur in parallel"
138