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f2878a801c
Performance with direct I/O here is noticable better, so use it instead of buffered write whenever we can.
70 lines
2.1 KiB
Bash
70 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2018 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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# test activation of monitoring with more thin-pool
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SKIP_WITH_LVMLOCKD=1
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SKIP_WITH_LVMPOLLD=1
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export LVM_TEST_THIN_REPAIR_CMD=${LVM_TEST_THIN_REPAIR_CMD-/bin/false}
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. lib/inittest
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#
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# Main
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#
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aux have_thin 1 0 0 || skip
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aux prepare_dmeventd
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aux prepare_vg 2 64
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# Create couple pools to later cause race in dmeventd during activation.
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# each pool may add 1sec. extra delay
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for i in $(seq 1 5)
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do
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lvcreate --errorwhenfull y -Zn -T -L4M -V4M $vg/pool_${i} -n $lv${i}
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# Fill thin-pool to some capacity >50%
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dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv${i}" bs=256K count=9 oflag=direct
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done
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lvs -a $vg
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vgchange -an $vg
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# Try to now activate all existing pool - this will generate in about 10sec later
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# storm of intial call of 'lvextend --use-policies'
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vgchange -ay $vg
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# Every 10sec. ATM there is DM status monitoring made by dmeventd
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sleep 9
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# Here try to hit the race by creating several new thin-pools in sequence.
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# Creation meets with dmeventd running 'lvextend' command and taking
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# it's internal lvm2 library lock - this used to make impossible to proceed with
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# new thin-pool registration.
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for i in $(seq 11 15)
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do
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#/usr/bin/time -o TM -f %e lvcreate --errorwhenfull y -Zn -T -L4M -V4M $vg/pool_${i} -n $lv${i}
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#read -r t < TM
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#test ${t%%.*} -lt 8 || die "Creation of thin pool took more then 8 second! ($t seconds)"
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START=$(date +%s)
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lvcreate --errorwhenfull y -Zn -T -L4M -V4M $vg/pool_${i} -n $lv${i}
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END=$(date +%s)
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DIFF=$(( END - START ))
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test "$DIFF" -lt 8 || die "Creation of thin pool took more then 8 second! ($DIFF seconds)"
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# Fill thin-pool to some capacity >50%
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dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv${i}" bs=256K count=9 oflag=direct
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done
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vgremove -f $vg
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