| Both sides previous revision Previous revision Next revision | Previous revision |
| qemu [2018/12/24 11:24] – nicola | qemu [2018/12/24 11:35] (current) – nicola |
|---|
| | by nicola for livenet research |
| ====== Performance zfs ====== | ====== Performance zfs ====== |
| http://open-zfs.org/wiki/Performance_tuning#Alignment_Shift_.28ashift.29 | * http://open-zfs.org/wiki/Performance_tuning#Alignment_Shift_.28ashift.29 |
| | * http://open-zfs.org/wiki/Performance_tuning#Basic_concepts |
| | * https://github.com/zfsonlinux/zfs/blob/master/cmd/zpool/zpool_vdev.c#L108 |
| | * https://www.servethehome.com/the-case-for-using-zfs-compression/ |
| | * https://utcc.utoronto.ca/~cks/space/blog/linux/ForcedUTF8Filenames |
| | * https://serverfault.com/questions/74411/best-compression-for-zfs-send-recv |
| | * https://github.com/zfsonlinux/zfs/issues/692 |
| | * https://www.percona.com/blog/2018/05/15/about-zfs-performance/ |
| | * https://forums.freebsd.org/threads/help-with-zfs-and-block-size-alignment.46957/ |
| | * https://mpolednik.github.io/2017/01/23/virtio-blk-vs-virtio-scsi/ |
| | == ssh performance == |
| | https://famzah.files.wordpress.com/2015/06/openssh-ciphers-performance-2015-chart.jpg |
| ==choose correct value ashift== | ==choose correct value ashift== |
| https://illumos.topicbox.com/groups/zfs/T2cf12f740806aa96-Ma3844bffd677334735f94f3d | * https://illumos.topicbox.com/groups/zfs/T2cf12f740806aa96-Ma3844bffd677334735f94f3d |
| | * https://wiki.orzfly.com/topics/zfs-on-linux-mount-raw-pool-image |
| | * https://www.tecmint.com/setup-iscsi-target-and-initiator-on-debian-9/ |
| | * http://dalaris.com/how-to-install-zfs-and-present-a-zvol-through-iscsi-in-ubuntu-14-04/ |
| | * https://linuxacademy.com/howtoguides/posts/show/topic/21208-how-to-share-your-storage-with-iscsi |
| | * https://help.ubuntu.com/lts/serverguide/iscsi-initiator.html.en |
| | * https://linux.die.net/man/8/tgtadm |
| | * https://unix.stackexchange.com/questions/132797/how-to-dd-a-remote-disk-using-ssh-on-local-machine-and-save-to-a-local-disk |
| ==understanding aio mode == | ==understanding aio mode == |
| https://specs.openstack.org/openstack/nova-specs/specs/mitaka/implemented/libvirt-aio-mode.html | * https://specs.openstack.org/openstack/nova-specs/specs/mitaka/implemented/libvirt-aio-mode.html |
| | * https://blog.programster.org/zfs-record-size |
| ==option of qemu== | ==option of qemu== * |
| https://heiko-sieger.info/qemu-system-x86_64-drive-options/ | * https://heiko-sieger.info/qemu-system-x86_64-drive-options/ |
| | * http://people.redhat.com/pbonzini/qemu-test-doc/_build/topics/disk_005fimages.html |
| ==native or threads== | ==native or threads== |
| https://www.reddit.com/r/VFIO/comments/9e3wwf/io_native_vs_threads_with_kvm_and_gpu_passthrough/ | * https://www.reddit.com/r/VFIO/comments/9e3wwf/io_native_vs_threads_with_kvm_and_gpu_passthrough/ |
| ==qemu disk with win10== | * https://wiki.mikejung.biz/KVM_/_Xen |
| | ==qemu disk with win10 performance == |
| http://turlucode.com/qemu-disk-io-performance-comparison-native-or-threads-windows-10-version/ | http://turlucode.com/qemu-disk-io-performance-comparison-native-or-threads-windows-10-version/ |
| | |
| | |
| | == initramfs == |
| | https://github.com/zfsonlinux/zfs/issues/6264 |
| | |
| | ==promblems== |
| | https://helpful.knobs-dials.com/index.php/INFO:_task_blocked_for_more_than_120_seconds. |