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Diffstat (limited to 'results/classifier/118/none/1786')
| -rw-r--r-- | results/classifier/118/none/1786 | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/results/classifier/118/none/1786 b/results/classifier/118/none/1786 new file mode 100644 index 00000000..4870ddf1 --- /dev/null +++ b/results/classifier/118/none/1786 @@ -0,0 +1,54 @@ +graphic: 0.785 +device: 0.759 +architecture: 0.683 +performance: 0.651 +network: 0.560 +ppc: 0.546 +permissions: 0.536 +semantic: 0.536 +PID: 0.515 +mistranslation: 0.498 +socket: 0.494 +kernel: 0.483 +register: 0.473 +vnc: 0.467 +x86: 0.464 +assembly: 0.464 +VMM: 0.429 +boot: 0.409 +risc-v: 0.390 +i386: 0.372 +hypervisor: 0.356 +user-level: 0.332 +debug: 0.330 +KVM: 0.273 +TCG: 0.269 +files: 0.239 +peripherals: 0.238 +arm: 0.204 +virtual: 0.189 + +Impossible to create an uncompressed QCOW2 disk +Description of problem: +An QCOW2 image is created compressed unconditionally. There is no way to disable compression, albeit the QCOW format specification allows this. + +``` +$ qemu-img --version +qemu-img version 6.2.0 (Debian 1:6.2+dfsg-2ubuntu6.12) +Copyright (c) 2003-2021 Fabrice Bellard and the QEMU Project developers +$ qemu-img create -f qcow2 test.qcow2 1G +Formatting 'test.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=1073741824 lazy_refcounts=off refcount_bits=16 +$ +``` + +Same is applicable for 8-x qemu-img version (I built it for testing purposes) +``` +$ ./build/qemu-img create -f qcow2 disk.qcow2 1G +Formatting 'disk.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=1073741824 lazy_refcounts=off refcount_bits=16 +$ ./build/qemu-img --version +qemu-img version 8.0.90 (v8.1.0-rc0-21-gd1181d2937) +Copyright (c) 2003-2023 Fabrice Bellard and the QEMU Project developers +$ +``` +Steps to reproduce: +Create a QCOW2 disk with `qemu-img` of never versions. |