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 (c) 2018 by Lawrence Livermore National Security, LLC.
25#
26
27# DESCRIPTION:
28#	Verify zpool status -s (slow IOs) works
29#
30# STRATEGY:
31#	1. Create a file
32#	2. Inject slow IOs into the pool
33#	3. Verify we can see the slow IOs with "zpool status -s".
34#	4. Verify we can see delay events.
35#
36
37. $STF_SUITE/include/libtest.shlib
38. $STF_SUITE/include/zpool_script.shlib
39
40DISK=${DISKS%% *}
41
42verify_runnable "both"
43
44default_mirror_setup_noexit $DISKS
45
46function cleanup
47{
48	log_must zinject -c all
49	log_must set_tunable64 ZIO_SLOW_IO_MS $OLD_SLOW_IO
50	log_must set_tunable64 SLOW_IO_EVENTS_PER_SECOND $OLD_SLOW_IO_EVENTS
51	default_cleanup_noexit
52}
53
54log_onexit cleanup
55
56log_must zpool events -c
57
58# Mark any IOs greater than 10ms as slow IOs
59OLD_SLOW_IO=$(get_tunable ZIO_SLOW_IO_MS)
60OLD_SLOW_IO_EVENTS=$(get_tunable SLOW_IO_EVENTS_PER_SECOND)
61log_must set_tunable64 ZIO_SLOW_IO_MS 10
62log_must set_tunable64 SLOW_IO_EVENTS_PER_SECOND 1000
63
64# Create 20ms IOs
65log_must zinject -d $DISK -D20:100 $TESTPOOL
66log_must mkfile 1048576 /$TESTPOOL/testfile
67sync_pool $TESTPOOL
68
69log_must zinject -c all
70SLOW_IOS=$(zpool status -sp | awk -v d="$DISK" '$0 ~ d {print $6}')
71DELAY_EVENTS=$(zpool events | grep -c delay)
72
73log_must [ $SLOW_IOS -gt 0 ]
74log_must [ $DELAY_EVENTS -gt 0 ]
75
76log_pass "Correctly saw $SLOW_IOS slow IOs and $DELAY_EVENTS delay events"
77