Commit 9e1cb96d authored by Kevin Wolf's avatar Kevin Wolf
Browse files

qemu-iotests: Test pwritev RMW logic 



Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
Reviewed-by: default avatarMax Reitz <mreitz@redhat.com>
parent cd33d02a

block.c

+7 −0
Original line number Diff line number Diff line
@@ -3141,10 +3141,13 @@ static int coroutine_fn bdrv_aligned_pwritev(BlockDriverState *bs, 
    if (ret < 0) {

        /* Do nothing, write notifier decided to fail this request */

    } else if (flags & BDRV_REQ_ZERO_WRITE) {

        BLKDBG_EVENT(bs, BLKDBG_PWRITEV_ZERO);

        ret = bdrv_co_do_write_zeroes(bs, sector_num, nb_sectors, flags);

    } else {

        BLKDBG_EVENT(bs, BLKDBG_PWRITEV);

        ret = drv->bdrv_co_writev(bs, sector_num, nb_sectors, qiov);

    }

    BLKDBG_EVENT(bs, BLKDBG_PWRITEV_DONE);



    if (ret == 0 && !bs->enable_write_cache) {

        ret = bdrv_co_flush(bs);
@@ -3215,11 +3218,13 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs, 
        };

        qemu_iovec_init_external(&head_qiov, &head_iov, 1);



        BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_HEAD);

        ret = bdrv_aligned_preadv(bs, &req, offset & ~(align - 1), align,

                                  align, &head_qiov, 0);

        if (ret < 0) {

            goto fail;

        }

        BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_HEAD);



        qemu_iovec_init(&local_qiov, qiov->niov + 2);

        qemu_iovec_add(&local_qiov, head_buf, offset & (align - 1));
@@ -3247,11 +3252,13 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs, 
        };

        qemu_iovec_init_external(&tail_qiov, &tail_iov, 1);



        BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_TAIL);

        ret = bdrv_aligned_preadv(bs, &req, (offset + bytes) & ~(align - 1), align,

                                  align, &tail_qiov, 0);

        if (ret < 0) {

            goto fail;

        }

        BLKDBG_EVENT(bs, BLKDBG_PWRITEV_RMW_AFTER_TAIL);



        if (!use_local_qiov) {

            qemu_iovec_init(&local_qiov, qiov->niov + 1);

block/blkdebug.c

+8 −0
Original line number Diff line number Diff line
@@ -186,6 +186,14 @@ static const char *event_names[BLKDBG_EVENT_MAX] = { 


    [BLKDBG_FLUSH_TO_OS]                    = "flush_to_os",

    [BLKDBG_FLUSH_TO_DISK]                  = "flush_to_disk",



    [BLKDBG_PWRITEV_RMW_HEAD]               = "pwritev_rmw.head",

    [BLKDBG_PWRITEV_RMW_AFTER_HEAD]         = "pwritev_rmw.after_head",

    [BLKDBG_PWRITEV_RMW_TAIL]               = "pwritev_rmw.tail",

    [BLKDBG_PWRITEV_RMW_AFTER_TAIL]         = "pwritev_rmw.after_tail",

    [BLKDBG_PWRITEV]                        = "pwritev",

    [BLKDBG_PWRITEV_ZERO]                   = "pwritev_zero",

    [BLKDBG_PWRITEV_DONE]                   = "pwritev_done",

};



static int get_event_by_name(const char *name, BlkDebugEvent *event)

include/block/block.h

+8 −0
Original line number Diff line number Diff line
@@ -527,6 +527,14 @@ typedef enum { 
    BLKDBG_FLUSH_TO_OS,

    BLKDBG_FLUSH_TO_DISK,



    BLKDBG_PWRITEV_RMW_HEAD,

    BLKDBG_PWRITEV_RMW_AFTER_HEAD,

    BLKDBG_PWRITEV_RMW_TAIL,

    BLKDBG_PWRITEV_RMW_AFTER_TAIL,

    BLKDBG_PWRITEV,

    BLKDBG_PWRITEV_ZERO,

    BLKDBG_PWRITEV_DONE,



    BLKDBG_EVENT_MAX,

} BlkDebugEvent;

tests/qemu-iotests/077

0 → 100755
+278 −0
Original line number Diff line number Diff line 
#!/bin/bash

#

# Test concurrent pread/pwrite

#

# Copyright (C) 2014 Red Hat, Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#



# creator

owner=kwolf@redhat.com



seq=`basename $0`

echo "QA output created by $seq"



here=`pwd`

tmp=/tmp/$$

status=1	# failure is the default!



_cleanup()

{

	_cleanup_test_img

}

trap "_cleanup; exit \$status" 0 1 2 3 15



# get standard environment, filters and checks

. ./common.rc

. ./common.filter



_supported_fmt generic

_supported_proto generic

_supported_os Linux



CLUSTER_SIZE=4k

size=128M



_make_test_img $size



echo

echo "== Some concurrent requests involving RMW =="



function test_io()

{

echo "open -o file.align=4k blkdebug::$TEST_IMG"

# A simple RMW request

cat  <<EOF

aio_write -P 10 0x200 0x200

aio_flush

EOF



# Sequential RMW requests on the same physical sector

off=0x1000

for ev in "head" "after_head" "tail" "after_tail"; do

cat  <<EOF

break pwritev_rmw.$ev A

aio_write -P 10 $((off + 0x200)) 0x200

wait_break A

aio_write -P 11 $((off + 0x400)) 0x200

sleep 100

resume A

aio_flush

EOF

off=$((off + 0x1000))

done



# Chained dependencies

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0x5000 0x200

wait_break A

aio_write -P 11 0x5200 0x200

aio_write -P 12 0x5400 0x200

aio_write -P 13 0x5600 0x200

aio_write -P 14 0x5800 0x200

aio_write -P 15 0x5a00 0x200

aio_write -P 16 0x5c00 0x200

aio_write -P 17 0x5e00 0x200

sleep 100

resume A

aio_flush

EOF



# Overlapping multiple requests

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0x6000 0x200

wait_break A

break pwritev_rmw.after_head B

aio_write -P 10 0x7e00 0x200

wait_break B

aio_write -P 11 0x6800 0x1000

resume A

sleep 100

resume B

aio_flush

EOF



cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0x8000 0x200

wait_break A

break pwritev_rmw.after_head B

aio_write -P 10 0x9e00 0x200

wait_break B

aio_write -P 11 0x8800 0x1000

resume B

sleep 100

resume A

aio_flush

EOF



cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0xa000 0x200

wait_break A

aio_write -P 11 0xa800 0x1000

break pwritev_rmw.after_head B

aio_write -P 10 0xbe00 0x200

wait_break B

resume A

sleep 100

resume B

aio_flush

EOF



cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0xc000 0x200

wait_break A

aio_write -P 11 0xc800 0x1000

break pwritev_rmw.after_head B

aio_write -P 10 0xde00 0x200

wait_break B

resume B

sleep 100

resume A

aio_flush

EOF



# Only RMW for the tail part

cat  <<EOF

break pwritev_rmw.after_tail A

aio_write -P 10 0xe000 0x1800

wait_break A

aio_write -P 11 0xf000 0xc00

sleep 100

resume A

aio_flush

EOF



cat  <<EOF

break pwritev A

aio_write -P 10 0x10000 0x800

wait_break A

break pwritev_rmw.after_tail B

aio_write -P 11 0x10000 0x400

break pwritev_done C

resume A

wait_break C

resume C

sleep 100

wait_break B

resume B

aio_flush

EOF



cat  <<EOF

break pwritev A

aio_write -P 10 0x11000 0x800

wait_break A

aio_write -P 11 0x11000 0x1000

sleep 100

resume A

aio_flush

EOF

}



test_io | $QEMU_IO  | _filter_qemu_io | \

    sed -e 's,[0-9/]* bytes at offset [0-9]*,XXX/XXX bytes at offset XXX,g' \

        -e 's/^[0-9]* \(bytes\|KiB\)/XXX bytes/' \

        -e '/Suspended/d'



echo

echo "== Verify image content =="



function verify_io()

{

    # A simple RMW request

    echo read -P 0       0 0x200

    echo read -P 10  0x200 0x200

    echo read -P 0   0x400 0xc00



    # Sequential RMW requests on the same physical sector

    echo read -P 0  0x1000 0x200

    echo read -P 10 0x1200 0x200

    echo read -P 11 0x1400 0x200

    echo read -P 0  0x1600 0xa00



    echo read -P 0  0x2000 0x200

    echo read -P 10 0x2200 0x200

    echo read -P 11 0x2400 0x200

    echo read -P 0  0x2600 0xa00



    echo read -P 0  0x3000 0x200

    echo read -P 10 0x3200 0x200

    echo read -P 11 0x3400 0x200

    echo read -P 0  0x3600 0xa00



    echo read -P 0  0x4000 0x200

    echo read -P 10 0x4200 0x200

    echo read -P 11 0x4400 0x200

    echo read -P 0  0x4600 0xa00



    # Chained dependencies

    echo read -P 10 0x5000 0x200

    echo read -P 11 0x5200 0x200

    echo read -P 12 0x5400 0x200

    echo read -P 13 0x5600 0x200

    echo read -P 14 0x5800 0x200

    echo read -P 15 0x5a00 0x200

    echo read -P 16 0x5c00 0x200

    echo read -P 17 0x5e00 0x200



    # Overlapping multiple requests

    echo read -P 10 0x6000 0x200

    echo read -P  0 0x6200 0x600

    echo read -P 11 0x6800 0x1000

    echo read -P  0 0x7800 0x600

    echo read -P 10 0x7e00 0x200



    echo read -P 10 0x8000 0x200

    echo read -P  0 0x8200 0x600

    echo read -P 11 0x8800 0x1000

    echo read -P  0 0x9800 0x600

    echo read -P 10 0x9e00 0x200



    echo read -P 10 0xa000 0x200

    echo read -P  0 0xa200 0x600

    echo read -P 11 0xa800 0x1000

    echo read -P  0 0xb800 0x600

    echo read -P 10 0xbe00 0x200



    echo read -P 10 0xc000 0x200

    echo read -P  0 0xc200 0x600

    echo read -P 11 0xc800 0x1000

    echo read -P  0 0xd800 0x600

    echo read -P 10 0xde00 0x200



    # Only RMW for the tail part

    echo read -P 10 0xe000 0x1000

    echo read -P 11 0xf800 0x400

    echo read -P  0 0xfc00 0x400



    echo read -P 11 0x10000 0x400

    echo read -P 10 0x10400 0x400



    echo read -P 11 0x11800 0x800

}



verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io



_check_test_img



# success, all done

echo "*** done"

rm -f $seq.full

status=0

tests/qemu-iotests/077.out

0 → 100644
+202 −0
Original line number Diff line number Diff line 
QA output created by 077

Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 



== Some concurrent requests involving RMW ==

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'B'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'B'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'B'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'B'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

blkdebug: Resuming request 'C'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'B'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

blkdebug: Resuming request 'A'

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

wrote XXX/XXX bytes at offset XXX

XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)



== Verify image content ==

read 512/512 bytes at offset 0

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 512

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 3072/3072 bytes at offset 1024

3 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 4096

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 4608

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 5120

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 2560/2560 bytes at offset 5632

2.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 8192

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 8704

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 9216

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 2560/2560 bytes at offset 9728

2.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 12288

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 12800

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 13312

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 2560/2560 bytes at offset 13824

2.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 16384

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 16896

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 17408

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 2560/2560 bytes at offset 17920

2.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 20480

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 20992

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 21504

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 22016

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 22528

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 23040

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 23552

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 24064

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 24576

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 25088

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 4096/4096 bytes at offset 26624

4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 30720

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 32256

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 32768

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 33280

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 4096/4096 bytes at offset 34816

4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 38912

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 40448

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 40960

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 41472

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 4096/4096 bytes at offset 43008

4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 47104

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 48640

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 49152

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 49664

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 4096/4096 bytes at offset 51200

4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1536/1536 bytes at offset 55296

1.500 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 512/512 bytes at offset 56832

512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 4096/4096 bytes at offset 57344

4 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1024/1024 bytes at offset 63488

1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1024/1024 bytes at offset 64512

1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1024/1024 bytes at offset 65536

1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 1024/1024 bytes at offset 66560

1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

read 2048/2048 bytes at offset 71680

2 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)

No errors were found on the image.

*** done