@fmyhr: After grovelling through the fio commits I've come across https://github.com/axboe/fio/commit/1e7f82e20c088e3f564ad24e37bb873b7ac37d3a which says old versions of fio had problems reaching compressability targets with large (above 64k) blocksizes which matches this launchpad bug's scenario where the block size is 512k. The said commit has a fix and is in fio 2.2.12 and later. Zesty has 2.16-1 so this (and many other issues) should be fixed from that Ubuntu release onwards. I can't comment on whether someone will do a backport to Xenial but at least fio is an easy compile...
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1703440 Title: xenial fio 2.2.10 randwrite: "random" data NOT random, highly compressible -> highly misleading output To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fio/+bug/1703440/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
