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There shouldn't be such a large difference, unless you have a really fast disk subsystem. In this case, you should consider using virtio, which should have good performance even with cache=writeback or cache=none.
2010-01-05 17:18:40 UTC in kernel virtual machine
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The default must of course be safe. Is there some reason why you can't use cache=writeback if you don't care about data integrity?
Note performance with old images (created with 4K cluster size) will be much lower than new images (created with 64K cluster size). Check your image cluster size.
2010-01-05 08:58:09 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-30 20:59:01 UTC in kernel virtual machine
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avik made 4 file-release changes.
2009-12-22 12:49:02 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-22 12:48:01 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-22 12:47:03 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-20 16:39:03 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-20 16:38:02 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-20 16:37:04 UTC in kernel virtual machine
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avik made 1 file-release changes.
2009-12-20 16:34:03 UTC in kernel virtual machine
