Roadmap

Improve AArch64 support

• Get to the point where most unit tests including Java pass
• Improve tooling around building and testing on AArch64
  • Issue 1106 - enhance main makefile to support building from host for aarch64
  • Fix various bugs/limitations
  • Implement gaps in respect to x86_64

Modularization/"Librarization"

• Create toolchain to optionally build custom kernel tailored to specific hypervisor or app
  • See this original discussion
• Hide most symbols and C++ standard library
  • Issue 97 - Be more selective on symbols exported from the kernel
  • The research results with numbers described in this discussion and the older one seem to indicate that both C++ standard library and other non-public symbols should be hidden in kernel
• Reduce kernel size
  • Shrinking kernel described in this early discussion would really be a result of hiding C++ library and most symbols (see above) but also conditionally compiling in/out various modules (see the first bullet in the Modularization/"Librarization")
• Expose C++ APIs as C to hide C++ completely

Merge ipv6 branch into master

• Also, reach out to Spirent to see if any more networking related bugs fixed can be brought over from the https://github.com/SpirentOrion/osv fork

Improve tooling

• Improve capstan
  • Better support QEMU on OSX (new accelerators)
  • Support pulling artifacts from GitHub nightly releases repo
  • Support running Firecracker, QEMU microvm
  • Support Virtio-FS
• Create IntelliJ, Maven and or Gradle plugins to deploy Java, Node, etc apps
• Run Docker images on OSv (possibly musl-based like Alpine are better)
  • There is already an existing example - https://github.com/cloudius-systems/osv-apps/tree/master/openjdk12-jre-from-docker

Other finer-level improvements

• Help review and merge the "lazy-allocated stack" patch
• #1069 - Add vsock support
• Test newer runtimes
  • Golang >= 1.13
  • Java > 12
  • DENO 1.0
• Support .NET Core executables
  • See what needs to be finished in this thread
• Refresh look and feel of http://osv.io
• Optimize memory allocator to better deal with "small" amount of memory - https://github.com/cloudius-systems/osv/issues/1013
• #28 - Optimize atomic operations on UP (single-VCPU)
• #1016 - Add support for smb2/3 (samba) file system T
  • There is already a patch sent to the list
• #1009 - Make ZFS optional as a shared library
• #212 - Support static executables
• #1041 - Idea for easily creating OSv images from a list of Ubuntu packages
• Fix networking bugs
  • https://github.com/cloudius-systems/osv/issues/420
  • https://github.com/cloudius-systems/osv/issues/454
• Speedup VFS - https://github.com/cloudius-systems/osv/issues/450
• Improve XEN support
  • https://github.com/cloudius-systems/osv/issues/498
  • https://github.com/cloudius-systems/osv/issues/345
• Speed-up realloc() by mremap() - https://github.com/cloudius-systems/osv/issues/184
• Investigate virtio-net “slow path” - https://github.com/cloudius-systems/osv/issues/177