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Red Hat Bugzilla – Attachment 1476302 Details for
Bug 1511891
qemu-img: slow disk move/clone/import
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Detailed test results 100/19g sparse image
100-19g.md (text/plain), 2.98 KB, created by
Nir Soffer
on 2018-08-15 20:45:54 UTC
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Description:
Detailed test results 100/19g sparse image
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MIME Type:
Creator:
Nir Soffer
Created:
2018-08-15 20:45:54 UTC
Size:
2.98 KB
patch
obsolete
># Copy 100/19g sparse image > >## image info > ># cat fedora-28-19g/info.json >{ > "virtual-size": 107374182400, > "filename": "/var/tmp/fedora-28-19g.img", > "format": "raw", > "actual-size": 20113342464, > "dirty-flag": false >} > ># cat fedora-28-19g/image-info.txt >total segments: 12704 > >data segments: 6352 >min data: 4096 >max data: 1503703040 >avg data: 3166440 > >zero segments: 6352 >min zero: 4096 >max zero: 13243494400 >avg zero: 13737555 > > >## copy from nfs to fc (move disk) > ># time qemu-img convert -p -f raw -O raw -t none -T none /var/tmp/nfs/fedora-28-19g.img dst-fc1 > (100.00/100%) > >real 4m2.158s >user 0m10.862s >sys 0m31.491s > ># time qemu-img convert -p -f raw -O raw -t none -T none -W /var/tmp/nfs/fedora-28-19g.img dst-fc1 > (100.00/100%) > >real 0m41.326s >user 0m3.440s >sys 0m18.745s > ># time (blkdiscard -z -p 32m dst-fc1 && dd if=/var/tmp/nfs/fedora-28-19g.img of=dst-fc1 bs=8M iflag=direct oflag=direct conv=sparse,fsync status=progress) >106887643136 bytes (107 GB) copied, 161.177254 s, 663 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 161.818 s, 664 MB/s > >real 2m44.827s >user 0m13.629s >sys 0m12.469s > ># time ./pdd-block /var/tmp/nfs/fedora-28-19g.img dst-fc1 >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 99.1943 s, 541 MB/s >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 122.978 s, 437 MB/s > >real 2m8.526s >user 0m8.490s >sys 0m11.910s > > >## copy from fc2 to fc1 (move disk) > ># time qemu-img convert -p -f raw -O raw -t none -T none src-fc2 dst-fc1 > (100.00/100%) > >real 6m23.183s >user 0m35.876s >sys 1m27.078s > ># time qemu-img convert -p -f raw -O raw -t none -T none -W src-fc2 dst-fc1 > (100.00/100%) > >real 3m14.890s >user 0m29.927s >sys 1m13.825s > ># time (blkdiscard -z -p 32m dst-fc1 && dd if=src-fc2 of=dst-fc1 bs=8M iflag=direct oflag=direct conv=sparse,fsync status=progress) >107332239360 bytes (107 GB) copied, 175.349839 s, 612 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 175.406 s, 612 MB/s > >real 2m58.326s >user 0m6.213s >sys 0m15.788s > ># time ./pdd-block src-fc2 dst-fc1 >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 111.165 s, 483 MB/s >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 137.845 s, 389 MB/s > >real 2m21.462s >user 0m11.617s >sys 0m16.933s > > >## copy from fc to nfs (move disk) > ># time qemu-img convert -p -f raw -O raw -t none -T none src-fc2 /var/tmp/nfs/upload.img > (100.00/100%) > >real 3m35.279s >user 0m27.315s >sys 1m14.771s > ># time qemu-img convert -p -f raw -O raw -t none -T none -W src-fc2 /var/tmp/nfs/upload.img > (100.00/100%) > >real 3m14.504s >user 0m26.425s >sys 0m59.381s > ># time dd if=src-fc2 of=/var/tmp/nfs/upload.img bs=8M iflag=direct oflag=direct conv=sparse,fsync status=progress >107206410240 bytes (107 GB) copied, 200.093195 s, 536 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 200.318 s, 536 MB/s > >real 3m20.321s >user 0m6.699s >sys 0m14.646s
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