Eelco Dolstra e2dbfbdcf4 * Use writeback caching for virtual disks instead of writethrough ... caching. This makes a huge performance difference (e.g. from 4 MB/s `dd' throughput to 140 MB/s on the Hydra machines). As the QEMU manual says: "Some block drivers perform badly with ‘cache=writethrough’, most notably, qcow2." svn path=/nixos/branches/boot-order/; revision=22248		2010-06-13 23:36:55 +00:00
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amazon-image.nix	Update users of `services.sshd'.	2010-03-11 17:02:53 +00:00
qemu-vm.nix	* Use writeback caching for virtual disks instead of writethrough	2010-06-13 23:36:55 +00:00