If you're worried about performance, see
http://blog.darknedgy.net/technology/2016/01/01/0/
> It strikes me that anti-microkernel sentiment most vocally originates as a sort of tribal affiliation mechanism by Linux users to ward off insecurity.
I think the post would be a better reference and stand a greater chance of correcting common misconceptions if it didn't include so many ad-hominem attacks against those who don't agree with the post's author. As-is, it just appears to be a continuation of a long-running flame-war.
Unfortunately, I am not aware of a compilation of misconceptions on microkernels article that's more valuable than this one.
http://www.yodaiken.com/papers/BarabanovThesis.pdf [1997]
Well, that's not exactly a microkernel, but took lots of inspiration from microkernels.
I take it that you may be alluding to the debate between Torvalds and Tannenbaum regarding microkernels.
https://en.wikipedia.org/wiki/Tanenbaum%E2%80%93Torvalds_deb...
Then there was also L4Linux, which I believe was the first low-overhead virtualization of Linux using the L4 microkernel. Papers demonstrated < 10% overhead I believe, where previous virtualization efforts were somewhat higher. I'd say it kicked off the whole paravirtualization/virtualization craze.