blob: 24fcefadfd077ccc42a0bee75dfa8960964b77ea (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
#!/bin/ksh -p
#
# CDDL HEADER START
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
# CDDL HEADER END
#
#
# Copyright (c) 2020, George Amanakis. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/l2arc/l2arc.cfg
#
# DESCRIPTION:
# L2ARC MFU/MRU arcstats do not leak
#
# STRATEGY:
# 1. Create pool with a cache device.
# 2. Create a random file in that pool, smaller than the cache device
# and random read for 10 sec.
# 3. Read l2arc_mfu_asize and l2arc_mru_asize
# 4. Export pool.
# 5. Verify l2arc_mfu_asize and l2arc_mru_asize are 0.
# 6. Import pool.
# 7. Read random read for 10 sec.
# 8. Read l2arc_mfu_asize and l2arc_mru_asize
# 9. Verify that L2ARC MFU increased and MFU+MRU = L2_asize.
#
verify_runnable "global"
log_assert "L2ARC MFU/MRU arcstats do not leak."
function cleanup
{
if poolexists $TESTPOOL ; then
destroy_pool $TESTPOOL
fi
log_must set_tunable32 L2ARC_NOPREFETCH $noprefetch
}
log_onexit cleanup
# L2ARC_NOPREFETCH is set to 0 to let L2ARC handle prefetches
typeset noprefetch=$(get_tunable L2ARC_NOPREFETCH)
log_must set_tunable32 L2ARC_NOPREFETCH 0
typeset fill_mb=800
typeset cache_sz=$(( 1.4 * $fill_mb ))
export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M
log_must truncate -s ${cache_sz}M $VDEV_CACHE
log_must zpool create -f $TESTPOOL $VDEV cache $VDEV_CACHE
log_must fio $FIO_SCRIPTS/mkfiles.fio
log_must fio $FIO_SCRIPTS/random_reads.fio
arcstat_quiescence_noecho l2_size
log_must zpool offline $TESTPOOL $VDEV_CACHE
arcstat_quiescence_noecho l2_size
typeset l2_mfu_init=$(get_arcstat l2_mfu_asize)
typeset l2_mru_init=$(get_arcstat l2_mru_asize)
typeset l2_prefetch_init=$(get_arcstat l2_prefetch_asize)
typeset l2_asize_init=$(get_arcstat l2_asize)
log_must zpool online $TESTPOOL $VDEV_CACHE
arcstat_quiescence_noecho l2_size
log_must zpool export $TESTPOOL
arcstat_quiescence_noecho l2_feeds
log_must test $(get_arcstat l2_mfu_asize) -eq 0
log_must test $(get_arcstat l2_mru_asize) -eq 0
log_must zpool import -d $VDIR $TESTPOOL
arcstat_quiescence_noecho l2_size
log_must fio $FIO_SCRIPTS/random_reads.fio
arcstat_quiescence_noecho l2_size
log_must zpool offline $TESTPOOL $VDEV_CACHE
arcstat_quiescence_noecho l2_size
typeset l2_mfu_end=$(get_arcstat l2_mfu_asize)
typeset l2_mru_end=$(get_arcstat l2_mru_asize)
typeset l2_prefetch_end=$(get_arcstat l2_prefetch_asize)
typeset l2_asize_end=$(get_arcstat l2_asize)
log_must test $(( $l2_mfu_end - $l2_mfu_init )) -gt 0
log_must test $(( $l2_mru_end + $l2_mfu_end + $l2_prefetch_end - \
$l2_asize_end )) -eq 0
log_must test $(( $l2_mru_init + $l2_mfu_init + $l2_prefetch_init - \
$l2_asize_init )) -eq 0
log_must zpool destroy -f $TESTPOOL
log_pass "L2ARC MFU/MRU arcstats do not leak."
|
