Archive for the ‘Solaris’ Category
Another detour: short-circuiting cat(1)
What do you think happens when you do this: # cat vmcore.4 > /dev/null If you’ve used Unix systems before, you might expect this to read vmcore.4 into memory and do nothing with it, since cat(1) reads a file, and "> /dev/null" sends it to the null driver, which accepts data and does nothing. This [...]
Don’t forget about /dev/poll
A correction to my previous entry, this entry has benchmark results which include /dev/poll.
Event ports and performance
So lots of people have been talking about event ports. They were designed to solve the problem with poll(2) and lots of file descriptors. The goal is to scale with the number of actual events of interest rather than the number of file descriptors one is listening on, since the former is often much less [...]
libevent and Solaris event ports
For those who dwell in subterranean shelters, event ports (or the “event completion framework,” if you want) are the slick new way to deal with events from various sources, including file descriptors, asynchronous i/o, other user processes, etc. Adam Leventhal even thinks they’re the 20th best thing about Solaris 10. Okay, that’s not huge, but [...]
