The Current State of C++ Unikernels

In this slide deck we look at the state of C++ unikernels and compare/contrast some of there differences.

1. The Current State of C++ Unikernels
2. whirlwind tour of unikernels
3. I looked up ‘standard’ in the dictionary. There are eleven different definitions. - Dave Winer
4. cross-compile existing applications down into small light- weight secure virtual machines
5. but why?
6. 10k VMs 10 VMs Massive Consolidation
7. 10ms Boot
8. single process
9. no fork
11. fork shared memory semaphores shared libraries multiple processes signals IPC
14. L E S S
15. no context switching
16. single address space
17. unsafe code tax for multiple address space systems is 30-40%
18. no virtual memory
19. coupled with SR-IOV
20. no dynamic linking
23. 1-10 Bugs/1000 LOC
24. > 100 Processes > 10,000 Files
25. 300-400M LOC
26. token ring wireless usb cdrom floppy disk
29. Shit VCs Say "I don’t think server sales are growing."
30. 400 Million New Servers Needed by 2020
31. v1
32. v2
33. v3
34. unikernel spectrum "posix" language specific domain specific osv rump kernel mirage clickos
35. whose using unikernels?
42. isn’t this an old idea? ✓ single process ✓ single address space
43. NFV
44. CLICKOS
45. Boot Time
46. ping delay
47. RumpKernel
50. debugging kernel drivers
51. Portable Operating System Interface
52. Unmodified drivers from netbsd
54. OSv
55. .so
56. 406k Requests/Second
57. large memory pages - 2Mb gdb perf kvm their own build tool - capstan no spin locks
59. booted 110,000 instances on a 48 core host, before memory was exhausted Alfred
61. pure play
62. c++ runtime running directly on x86
63. C++ 11/14 clang v3.8+
64. c++11 features used delegates user defined literals
65. hello world is 1/3 the size of JVM hello world even with hypervisor
66. network from scratch
67. create node++
68. os.a irq manager pic manager pit-timer device drivers
69. overbooking 75k VMs on One Host
70. newlib
71. Stats Profiling Memory map
73. few tweaks
74. include OS rump kernel OSv clickOS “Posix” X ✓ ✓ X Size 2Mb 16Mb 29MB 6MB Multiple Languages X ✓ ✓ X
75. http://rumpkernel.org/ http://www.includeos.org/ http://osv.io/ https://deferpanic.com https://github.com/deferpanic/virgo http://www.meetup.com/San-Francisco-Unikernels/