Not quite; vdso is a general syscall-wrapper mechanism. The Solaris solution is specifically just for the gettimeofday(), gethrtime() interfaces, etc.
The difference is that on Solaris, since there is no public system call interface, there's also no need for a fallback. Every program is just faster, no matter how Solaris is virtualized, since every program is using libc.
There's also no need for an administrative interface to control clocksource; the best one is always used.
The difference is that on Solaris, since there is no public system call interface, there's also no need for a fallback. Every program is just faster, no matter how Solaris is virtualized, since every program is using libc.
There's also no need for an administrative interface to control clocksource; the best one is always used.