Show pageOld revisionsBacklinksAdd to bookExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. by nicola for livenet research ====== Performance zfs ====== * 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== * 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 == * https://specs.openstack.org/openstack/nova-specs/specs/mitaka/implemented/libvirt-aio-mode.html * https://blog.programster.org/zfs-record-size ==option of qemu== * * 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== * https://www.reddit.com/r/VFIO/comments/9e3wwf/io_native_vs_threads_with_kvm_and_gpu_passthrough/ * 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/ == initramfs == https://github.com/zfsonlinux/zfs/issues/6264 ==promblems== https://helpful.knobs-dials.com/index.php/INFO:_task_blocked_for_more_than_120_seconds. qemu.txt Last modified: 2018/12/24 11:35by nicola