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Red Hat Bugzilla – Attachment 1476304 Details for
Bug 1511891
qemu-img: slow disk move/clone/import
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Detailed test results 100/86g sparse image
100-86g.md (text/plain), 4.48 KB, created by
Nir Soffer
on 2018-08-15 20:47:35 UTC
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Description:
Detailed test results 100/86g sparse image
Filename:
MIME Type:
Creator:
Nir Soffer
Created:
2018-08-15 20:47:35 UTC
Size:
4.48 KB
patch
obsolete
># Copy 100/86g sparse image > >## image info > ># cat fedora-28-86g/info.json >{ > "virtual-size": 107374182400, > "filename": "export/fedora-28-86g.img", > "format": "raw", > "actual-size": 91388776448, > "dirty-flag": false >} > ># cat fedora-28-86g/image-info.txt >total segments: 49558 > >data segments: 24779 >min data: 4096 >max data: 1748107264 >avg data: 3688137 > >zero segments: 24779 >min zero: 4096 >max zero: 8494186496 >avg zero: 645135 > > >## storage raw throughput > ># dd if=/var/tmp/nfs/fedora-28-86g.img of=/dev/null bs=8M count=12800 iflag=direct conv=sparse status=progress >106820534272 bytes (107 GB) copied, 115.569157 s, 924 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 116.292 s, 923 MB/s > ># dd if=/dev/zero of=dst-fc1 bs=8M count=12800 oflag=direct conv=fsync status=progress >107063803904 bytes (107 GB) copied, 151.065578 s, 709 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 151.491 s, 709 MB/s > ># dd if=/dev/zero of=/var/tmp/nfs/upload.img bs=8M count=12800 oflag=direct conv=fsync status=progress >107114135552 bytes (107 GB) copied, 295.397295 s, 363 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 296.105 s, 363 MB/s > > >## from nfs to fc > ># time qemu-img convert -p -f raw -O raw -t none -T none /var/tmp/nfs/fedora-28-86g.img dst-fc1 > (100.00/100%) > >real 20m30.631s >user 0m47.343s >sys 2m29.248s > ># time qemu-img convert -p -f raw -O raw -t none -T none -W /var/tmp/nfs/fedora-28-86g.img dst-fc1 > (100.00/100%) > >real 3m8.932s >user 0m16.957s >sys 1m26.814s > ># time (blkdiscard -z -p 32m dst-fc1 && dd if=/var/tmp/nfs/fedora-28-86g.img of=dst-fc1 bs=8M iflag=direct oflag=direct conv=sparse,fsync status=progress) >107340627968 bytes (107 GB) copied, 235.564946 s, 456 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 235.603 s, 456 MB/s > >real 3m58.632s >user 0m2.136s >sys 0m20.764s > ># cat pdd-block >#!/bin/sh >blkdiscard -z -p 32m $2 >dd if=$1 of=$2 bs=8M count=6400 iflag=direct oflag=direct conv=notrunc,sparse,fsync & >dd if=$1 of=$2 bs=8M count=6400 seek=6400 skip=6400 iflag=direct oflag=direct conv=notrunc,sparse,fsync & >wait > ># time ./pdd-block /var/tmp/nfs/fedora-28-86g.img dst-fc1 >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 122.177 s, 439 MB/s >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 125.785 s, 427 MB/s > >real 2m12.041s >user 0m1.281s >sys 0m21.115s > > >## 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 20m29.585s >user 1m7.907s >sys 3m42.887s > ># time qemu-img convert -p -f raw -O raw -t none -T none -W src-fc2 dst-fc1 > (100.00/100%) > >real 6m11.936s >user 0m28.545s >sys 1m47.583s > ># 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) >107365793792 bytes (107 GB) copied, 284.895627 s, 377 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 284.907 s, 377 MB/s > >real 4m47.842s >user 0m1.236s >sys 0m24.292s > ># time ./pdd-block src-fc2 dst-fc1 >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 147.406 s, 364 MB/s >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 151.842 s, 354 MB/s > >real 2m34.807s >user 0m1.017s >sys 0m25.089s > > >## from fc to nfs > ># time qemu-img convert -p -f raw -O raw -t none -T none src-fc1 /var/tmp/nfs/upload.img > (100.00/100%) > >real 8m13.597s >user 0m36.174s >sys 2m1.038s > ># time qemu-img convert -p -f raw -O raw -t none -T none -W src-fc1 /var/tmp/nfs/upload.img > (100.00/100%) > >real 6m19.051s >user 0m26.300s >sys 1m36.163s > ># time dd if=src-fc1 of=/var/tmp/nfs/upload.img bs=8M iflag=direct oflag=direct conv=sparse,fsync status=progress >106837311488 bytes (107 GB) copied, 397.775055 s, 269 MB/s >12800+0 records in >12800+0 records out >107374182400 bytes (107 GB) copied, 398.514 s, 269 MB/s > >real 6m38.518s >user 0m1.334s >sys 0m21.120s > ># cat pdd-file >#!/bin/sh >truncate -s 0 $2 >truncate -s 100g $2 >dd if=$1 of=$2 bs=8M count=6400 iflag=direct oflag=direct conv=notrunc,sparse,fsync & >dd if=$1 of=$2 bs=8M count=6400 seek=6400 skip=6400 iflag=direct oflag=direct conv=notrunc,sparse,fsync & >wait > ># time ./pdd-file src-fc1 /var/tmp/nfs/upload.img >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 329.075 s, 163 MB/s >6400+0 records in >6400+0 records out >53687091200 bytes (54 GB) copied, 340.279 s, 158 MB/s > >real 5m40.291s >user 0m1.627s >sys 0m24.459s
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