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grub-fs-tester: better estimation of filesystem time for LVM/RAID

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Write activity with LVM/RAID can happen after filesystem is unmounted.
In my testing modification time of loop files was 15 - 20 seconds
after unmount.  So use time as close to unmount as possible as
reference instead.
This commit is contained in:
Andrei Borzenkov 2015-03-15 21:06:26 +03:00
parent 5fe21c9968
commit fa07d919d1
1 changed files with 8 additions and 1 deletions
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9
tests/util/grub-fs-tester.in
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@ -993,6 +993,7 @@ for ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE +
fi
sleep 1;
done
UMOUNT_TIME=$(date -u "+%Y-%m-%d %H:%M:%S")
sleep 1
vgchange -a n grub_test
;;
@ -1004,6 +1005,7 @@ for ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE +
fi
sleep 1;
done
UMOUNT_TIME=$(date -u "+%Y-%m-%d %H:%M:%S")
sleep 1
mdadm --stop /dev/md/"${fs}_$NDEVICES"
;;
@ -1214,10 +1216,15 @@ for ((LOGSECSIZE=MINLOGSECSIZE;LOGSECSIZE<=MAXLOGSECSIZE;LOGSECSIZE=LOGSECSIZE +
case x$fs in
xiso9660 | xziso9660 | xrockridge | xjoliet | xrockridge_joliet | xiso9660_1999 | xrockridge_1999 | xjoliet_1999 | xrockridge_joliet_1999)
FSTIME="$(date -d "$(echo ${FSUUID} | awk -F - '{ print $1"-"$2"-"$3" "$4":"$5":"$6 ;}')" '+%Y-%m-%d %H:%M:%S')";;
xlvm*|xmdraid*)
# With some abstractions like mdraid flushing to disk
# may be delayed for a long time.
FSTIME="$UMOUNT_TIME";;
*)
FSTIME="$(TZ=UTC ls --time-style="+%Y-%m-%d_%H:%M:%S" -l -d "${FSIMAGES[0]}"|awk '{print $6; }'|sed 's,_, ,g')";;
esac
# With some abstractions like mdraid it may take up to 2 seconds for the data to reach the disks after it was flushed by FS in these tests.
# With some abstractions like mdraid computing of UMOUNT_TIME
# is not precise. Account for small difference here.
FSTIMEM1="$(date -d "$FSTIME UTC -1 second" -u "+%Y-%m-%d %H:%M:%S")"
FSTIMEM2="$(date -d "$FSTIME UTC -2 second" -u "+%Y-%m-%d %H:%M:%S")"