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qemu/tests/qemu-iotests/178.out.qcow2

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iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
QA output created by 178
== Input validation ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
qemu-img: Either --size N or one filename must be specified.
qemu-img: --size N cannot be used together with a filename.
qemu-img: At most one filename argument is allowed.
qemu-img: --object, --image-opts, -f, and -l require a filename argument.
qemu-img: --object, --image-opts, -f, and -l require a filename argument.
qemu-img: --object, --image-opts, -f, and -l require a filename argument.
qemu-img: --object, --image-opts, -f, and -l require a filename argument.
qemu-img: Invalid option list: ,
qemu-img: Invalid parameter 'snapshot.foo'
qemu-img: Failed in parsing snapshot param 'snapshot.foo'
qemu-img: --output must be used with human or json as argument.
qemu-img: Image size must be less than 8 EiB!
qemu-img: Unknown file format 'foo'
== Size calculation for a new file (human) ==
required size: 196608
fully allocated size: 196608
required size: 589824
fully allocated size: 2148073472
required size: 10747904
fully allocated size: 68730224640
required size: 42205184
fully allocated size: 274920112128
required size: 168034304
fully allocated size: 1099679662080
required size: 343650009088
fully allocated size: 2252143463694336
qemu-img: The image size is too large (try using a larger cluster size)
== Empty qcow2 input image (human) ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=0
required size: 196608
fully allocated size: 196608
converted image file size in bytes: 196608
== qcow2 input image with data (human) ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
required size: 393216
fully allocated size: 1074135040
wrote 512/512 bytes at offset 512
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 64512/64512 bytes at offset 134217728
63 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
required size: 589824
fully allocated size: 1074135040
converted image file size in bytes: 524288
== qcow2 input image with internal snapshot (human) ==
required size: 524288
fully allocated size: 1074135040
converted image file size in bytes: 458752
== qcow2 input image and a backing file (human) ==
required size: 1074135040
fully allocated size: 1074135040
iotests: add LUKS payload overhead to 178 qemu-img measure test The previous patch includes the LUKS payload overhead into the qemu-img measure calculation for qcow2. Update qemu-iotests 178 to exercise this new code path. Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20190218104525.23674-3-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-18 13:45:25 +03:00
== qcow2 input image and LUKS encryption ==
required size: 2686976
fully allocated size: 1076232192
iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
== qcow2 input image and preallocation (human) ==
required size: 1074135040
fully allocated size: 1074135040
converted image file size in bytes: 1074135040
== Fully-allocated qcow2 input image (human) ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=8388608
wrote 8388608/8388608 bytes at offset 0
8 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
required size: 8716288
fully allocated size: 8716288
converted image file size in bytes: 8716288
== Empty raw input image (human) ==
Formatting 'TEST_DIR/t.qcow2', fmt=IMGFMT size=0
required size: 196608
fully allocated size: 196608
converted image file size in bytes: 196608
== raw input image with data (human) ==
Formatting 'TEST_DIR/t.qcow2', fmt=IMGFMT size=1073741824
block: posix: Always allocate the first block When creating an image with preallocation "off" or "falloc", the first block of the image is typically not allocated. When using Gluster storage backed by XFS filesystem, reading this block using direct I/O succeeds regardless of request length, fooling alignment detection. In this case we fallback to a safe value (4096) instead of the optimal value (512), which may lead to unneeded data copying when aligning requests. Allocating the first block avoids the fallback. Since we allocate the first block even with preallocation=off, we no longer create images with zero disk size: $ ./qemu-img create -f raw test.raw 1g Formatting 'test.raw', fmt=raw size=1073741824 $ ls -lhs test.raw 4.0K -rw-r--r--. 1 nsoffer nsoffer 1.0G Aug 16 23:48 test.raw And converting the image requires additional cluster: $ ./qemu-img measure -f raw -O qcow2 test.raw required size: 458752 fully allocated size: 1074135040 When using format like vmdk with multiple files per image, we allocate one block per file: $ ./qemu-img create -f vmdk -o subformat=twoGbMaxExtentFlat test.vmdk 4g Formatting 'test.vmdk', fmt=vmdk size=4294967296 compat6=off hwversion=undefined subformat=twoGbMaxExtentFlat $ ls -lhs test*.vmdk 4.0K -rw-r--r--. 1 nsoffer nsoffer 2.0G Aug 27 03:23 test-f001.vmdk 4.0K -rw-r--r--. 1 nsoffer nsoffer 2.0G Aug 27 03:23 test-f002.vmdk 4.0K -rw-r--r--. 1 nsoffer nsoffer 353 Aug 27 03:23 test.vmdk I did quick performance test for copying disks with qemu-img convert to new raw target image to Gluster storage with sector size of 512 bytes: for i in $(seq 10); do rm -f dst.raw sleep 10 time ./qemu-img convert -f raw -O raw -t none -T none src.raw dst.raw done Here is a table comparing the total time spent: Type Before(s) After(s) Diff(%) --------------------------------------- real 530.028 469.123 -11.4 user 17.204 10.768 -37.4 sys 17.881 7.011 -60.7 We can see very clear improvement in CPU usage. Signed-off-by: Nir Soffer <nsoffer@redhat.com> Message-id: 20190827010528.8818-2-nsoffer@redhat.com Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-27 04:05:27 +03:00
required size: 458752
iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
fully allocated size: 1074135040
wrote 512/512 bytes at offset 512
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 64512/64512 bytes at offset 134217728
63 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
required size: 589824
fully allocated size: 1074135040
converted image file size in bytes: 524288
== raw input image and a backing file (human) ==
required size: 1074135040
fully allocated size: 1074135040
iotests: add LUKS payload overhead to 178 qemu-img measure test The previous patch includes the LUKS payload overhead into the qemu-img measure calculation for qcow2. Update qemu-iotests 178 to exercise this new code path. Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20190218104525.23674-3-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-18 13:45:25 +03:00
== raw input image and LUKS encryption ==
required size: 2686976
fully allocated size: 1076232192
iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
== raw input image and preallocation (human) ==
required size: 1074135040
fully allocated size: 1074135040
converted image file size in bytes: 1074135040
== Fully-allocated raw input image (human) ==
Formatting 'TEST_DIR/t.qcow2', fmt=IMGFMT size=8388608
wrote 8388608/8388608 bytes at offset 0
8 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
required size: 8716288
fully allocated size: 8716288
converted image file size in bytes: 8716288
== Size calculation for a new file (json) ==
{
"required": 196608,
"fully-allocated": 196608
}
{
"required": 589824,
"fully-allocated": 2148073472
}
{
"required": 10747904,
"fully-allocated": 68730224640
}
{
"required": 42205184,
"fully-allocated": 274920112128
}
{
"required": 168034304,
"fully-allocated": 1099679662080
}
{
"required": 343650009088,
"fully-allocated": 2252143463694336
}
qemu-img: The image size is too large (try using a larger cluster size)
== Empty qcow2 input image (json) ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=0
{
"required": 196608,
"fully-allocated": 196608
}
converted image file size in bytes: 196608
== qcow2 input image with data (json) ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1073741824
{
"required": 393216,
"fully-allocated": 1074135040
}
wrote 512/512 bytes at offset 512
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 64512/64512 bytes at offset 134217728
63 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{
"required": 589824,
"fully-allocated": 1074135040
}
converted image file size in bytes: 524288
== qcow2 input image with internal snapshot (json) ==
{
"required": 524288,
"fully-allocated": 1074135040
}
converted image file size in bytes: 458752
== qcow2 input image and a backing file (json) ==
{
"required": 1074135040,
"fully-allocated": 1074135040
}
iotests: add LUKS payload overhead to 178 qemu-img measure test The previous patch includes the LUKS payload overhead into the qemu-img measure calculation for qcow2. Update qemu-iotests 178 to exercise this new code path. Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20190218104525.23674-3-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-18 13:45:25 +03:00
== qcow2 input image and LUKS encryption ==
{
"required": 2686976,
"fully-allocated": 1076232192
}
iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
== qcow2 input image and preallocation (json) ==
{
"required": 1074135040,
"fully-allocated": 1074135040
}
converted image file size in bytes: 1074135040
== Fully-allocated qcow2 input image (json) ==
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=8388608
wrote 8388608/8388608 bytes at offset 0
8 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{
"required": 8716288,
"fully-allocated": 8716288
}
converted image file size in bytes: 8716288
== Empty raw input image (json) ==
Formatting 'TEST_DIR/t.qcow2', fmt=IMGFMT size=0
{
"required": 196608,
"fully-allocated": 196608
}
converted image file size in bytes: 196608
== raw input image with data (json) ==
Formatting 'TEST_DIR/t.qcow2', fmt=IMGFMT size=1073741824
{
block: posix: Always allocate the first block When creating an image with preallocation "off" or "falloc", the first block of the image is typically not allocated. When using Gluster storage backed by XFS filesystem, reading this block using direct I/O succeeds regardless of request length, fooling alignment detection. In this case we fallback to a safe value (4096) instead of the optimal value (512), which may lead to unneeded data copying when aligning requests. Allocating the first block avoids the fallback. Since we allocate the first block even with preallocation=off, we no longer create images with zero disk size: $ ./qemu-img create -f raw test.raw 1g Formatting 'test.raw', fmt=raw size=1073741824 $ ls -lhs test.raw 4.0K -rw-r--r--. 1 nsoffer nsoffer 1.0G Aug 16 23:48 test.raw And converting the image requires additional cluster: $ ./qemu-img measure -f raw -O qcow2 test.raw required size: 458752 fully allocated size: 1074135040 When using format like vmdk with multiple files per image, we allocate one block per file: $ ./qemu-img create -f vmdk -o subformat=twoGbMaxExtentFlat test.vmdk 4g Formatting 'test.vmdk', fmt=vmdk size=4294967296 compat6=off hwversion=undefined subformat=twoGbMaxExtentFlat $ ls -lhs test*.vmdk 4.0K -rw-r--r--. 1 nsoffer nsoffer 2.0G Aug 27 03:23 test-f001.vmdk 4.0K -rw-r--r--. 1 nsoffer nsoffer 2.0G Aug 27 03:23 test-f002.vmdk 4.0K -rw-r--r--. 1 nsoffer nsoffer 353 Aug 27 03:23 test.vmdk I did quick performance test for copying disks with qemu-img convert to new raw target image to Gluster storage with sector size of 512 bytes: for i in $(seq 10); do rm -f dst.raw sleep 10 time ./qemu-img convert -f raw -O raw -t none -T none src.raw dst.raw done Here is a table comparing the total time spent: Type Before(s) After(s) Diff(%) --------------------------------------- real 530.028 469.123 -11.4 user 17.204 10.768 -37.4 sys 17.881 7.011 -60.7 We can see very clear improvement in CPU usage. Signed-off-by: Nir Soffer <nsoffer@redhat.com> Message-id: 20190827010528.8818-2-nsoffer@redhat.com Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-08-27 04:05:27 +03:00
"required": 458752,
iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
"fully-allocated": 1074135040
}
wrote 512/512 bytes at offset 512
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 65536/65536 bytes at offset 65536
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
wrote 64512/64512 bytes at offset 134217728
63 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{
"required": 589824,
"fully-allocated": 1074135040
}
converted image file size in bytes: 524288
== raw input image and a backing file (json) ==
{
"required": 1074135040,
"fully-allocated": 1074135040
}
iotests: add LUKS payload overhead to 178 qemu-img measure test The previous patch includes the LUKS payload overhead into the qemu-img measure calculation for qcow2. Update qemu-iotests 178 to exercise this new code path. Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20190218104525.23674-3-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-02-18 13:45:25 +03:00
== raw input image and LUKS encryption ==
{
"required": 2686976,
"fully-allocated": 1076232192
}
iotests: add test 178 for qemu-img measure Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Message-id: 20170705125738.8777-10-stefanha@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-07-05 15:57:38 +03:00
== raw input image and preallocation (json) ==
{
"required": 1074135040,
"fully-allocated": 1074135040
}
converted image file size in bytes: 1074135040
== Fully-allocated raw input image (json) ==
Formatting 'TEST_DIR/t.qcow2', fmt=IMGFMT size=8388608
wrote 8388608/8388608 bytes at offset 0
8 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{
"required": 8716288,
"fully-allocated": 8716288
}
converted image file size in bytes: 8716288
*** done
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