When comparing LING vs ClickOS, the Slant community recommends ClickOS for most people. In the question“What are the best unikernels?” ClickOS is ranked 5th while LING is ranked 8th. The most important reason people chose ClickOS is:
More than 100 instances of ClickOS can be run concurrently while saturating only a 10GB pipe on an inexpensive server.
Specs
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Pros
Pro Highly integrated with Erlang
LING is highly compatible with Erlang and is able to easily understand .beam
files. Developers can write programs in Erlang and easily deploy it to LING unikernels.
Pro Few external libraries
LING is very lightweight. For example, it only uses three external libraries.
Pro Can run a large number of instances concurrently and cheaply
More than 100 instances of ClickOS can be run concurrently while saturating only a 10GB pipe on an inexpensive server.
Pro Great performance
Benchmarks have shown that ClickOS has great performance. It boots quickly (averages at about 20milliseconds) and has very little delay (about 45 microseconds).
Cons
Con Has some complexity added because it's not based on a language with process isolation
Since C and C++ (with which ClickOS is built) have no language level isolation, ClickOS doesn't have process isolation either. Because of this, sensitive components have to be split into different nodes, isolated by either different virtual machines or different computers.