Public bug reported: version 3.0+ is 20 times slower than version 2.12 I wrote a small 64-bit operating system (SIGMAOS) in which I use the lzma decoder. unpacking the file takes 20 times slower than in version 2.12. You can download it from https://drive.google.com/drive/folders/0B_wEiYjzVkC0ZGtkbENENzF1Nms
** Affects: qemu Importance: Undecided Status: New -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1812694 Title: qemu-system-x86_64 version 3.0+ is 20 times slower than version 2.12 Status in QEMU: New Bug description: version 3.0+ is 20 times slower than version 2.12 I wrote a small 64-bit operating system (SIGMAOS) in which I use the lzma decoder. unpacking the file takes 20 times slower than in version 2.12. You can download it from https://drive.google.com/drive/folders/0B_wEiYjzVkC0ZGtkbENENzF1Nms To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1812694/+subscriptions