16 May
2003
16 May
'03
8:51 a.m.
[...]
for communication that can wake another
thread/process, shared memory
is not an option: there is no way to "wait" on shared memory. for
that, a pipe is notably faster than a tcp socket and a bit faster than
a unix socket. for actual data movement, shared memory beats
everything hands down since its zero copy.
linux pipes are about the fast IPC on any operating system so far,
although i have heard good things about futexes in kernel 2.5/2.6.
Has anyone tried using realtime signals instead of a pipe for this?
--ms