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56 lines
1.7 KiB
Bash
56 lines
1.7 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2008 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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#
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# tests basic functionality of read-ahead and ra regressions
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#
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test_description='Test read-ahead functionality'
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux prepare_vg 5
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#COMM "test various read ahead settings (bz450922)"
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lvcreate -l 100%FREE -i5 -I512 -n $lv $vg
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ra=$(get lv_field $vg/$lv lv_kernel_read_ahead --units s --nosuffix)
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test $(( ( ra / 5 ) * 5 )) -le $ra
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not lvchange -r auto $vg/$lv 2>&1 | grep auto
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check lv_field $vg/$lv lv_read_ahead auto
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lvchange -r 640 $vg/$lv
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check lv_field $vg/$lv lv_read_ahead 640 --units s --nosuffix
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lvremove -ff $vg
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#COMM "read ahead is properly inherited from underlying PV"
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blockdev --setra 768 "$dev1"
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vgscan
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# is there something in the system changing readahead settings behind the scene...
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RASZ=$(blockdev --getra "$dev1")
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test "$RASZ" -ge 768 || RASZ=768
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lvcreate -n $lv -L4m $vg "$dev1"
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test "$(blockdev --getra "$DM_DEV_DIR/$vg/$lv")" -eq "$RASZ"
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lvremove -ff $vg
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# Check default, active/inactive values for read_ahead / kernel_read_ahead
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lvcreate -n $lv -l 50%FREE $vg
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lvchange -an $vg/$lv
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check lv_field $vg/$lv lv_read_ahead auto
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check lv_field $vg/$lv lv_kernel_read_ahead -1
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lvchange -r 512 $vg/$lv
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lvchange -ay $vg/$lv
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check lv_field $vg/$lv lv_read_ahead 256.00k
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check lv_field $vg/$lv lv_kernel_read_ahead 256.00k
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vgremove -ff $vg
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