ade54ee622
Create Go modules: - ovirt.org/imageio - the imageio client library for 3rd party programs. This module depends only on Go packages, to make it useful for projects that cannot depend on external programs or libraries, like the ovirt go client library. This module licensed under LGPL2+. - ovirt.org/ovirt-img - the ovirt-img program for uploading and downloading images. This module is licensed under GPL2+ as the rest of the project. The nbd and http backends are not complete, but both support getting image size and extents. To test the imageio backend you need to start imageio server and install a ticket using the ovirt-imageioctl command line. Here is an example run using the new imageio http backend: $ ./ovirt-img https://localhost:54322/images/nbd | head start=0 length=69632 zero=false start=69632 length=978944 zero=true start=1048576 length=49152 zero=false start=1097728 length=12288 zero=true start=1110016 length=33366016 zero=false start=34476032 length=16158720 zero=true start=50634752 length=162045952 zero=false start=212680704 length=56803328 zero=true start=269484032 length=24576 zero=false start=269508608 length=24576 zero=true Comparing the nbd and http backends, the http backend is slower but still much faster than "qemu-img map". $ hyperfine "./ovirt-img nbd+unix:///?socket=/tmp/nbd.sock >/dev/null" \ "./ovirt-img https://localhost:54322/images/nbd >/dev/null" \ "qemu-img map --output json nbd+unix:///?socket=/tmp/nbd.sock >/dev/null" Benchmark 1: ./ovirt-img nbd+unix:///?socket=/tmp/nbd.sock >/dev/null Time (mean ± σ): 23.8 ms ± 1.0 ms [User: 7.4 ms, System: 5.7 ms] Range (min … max): 21.9 ms … 26.9 ms 114 runs Benchmark 2: ./ovirt-img https://localhost:54322/images/nbd >/dev/null Time (mean ± σ): 62.5 ms ± 4.6 ms [User: 14.5 ms, System: 6.6 ms] Range (min … max): 54.0 ms … 73.6 ms 47 runs Benchmark 3: qemu-img map --output json nbd+unix:///?socket=/tmp/nbd.sock >/dev/null Time (mean ± σ): 140.3 ms ± 4.5 ms [User: 50.9 ms, System: 44.9 ms] Range (min … max): 134.3 ms … 155.3 ms 19 runs Summary './ovirt-img nbd+unix:///?socket=/tmp/nbd.sock >/dev/null' ran 2.62 ± 0.23 times faster than './ovirt-img https://localhost:54322/images/nbd >/dev/null' 5.89 ± 0.32 times faster than 'qemu-img map --output json nbd+unix:///?socket=/tmp/nbd.sock >/dev/null' Change-Id: I32f416b8443b98e59abc16eaf4033406d516a5c3 Signed-off-by: Nir Soffer <nsoffer@redhat.com>
19 lines
275 B
INI
19 lines
275 B
INI
# https://editorconfig.org/
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root = true
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[*]
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indent_style = space
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indent_size = 4
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insert_final_newline = true
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trim_trailing_whitespace = true
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charset = utf-8
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[{*.go,go.mod,go.sum}]
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# Match gofmt style
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indent_style = tab
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[Makefile]
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# Make requires tabs.
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indent_style = tab
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