Hello, Quoting Robert Watson <[EMAIL PROTECTED]>:
> No problem -- just to be clear: in 7, users can still choose between > libpthread (m:n) and libthr (1:1), but the default is now libthr rather than > libpthread, as libthr seemed to perform better in most if not all workloads > of > interest. I thought 1:1 would perform better with I/O bound processes running several threads. But wouldn't a process rely on a few I/O threads for several other CPU bound threads ? (unless specific activities such as a web server, or a database, which would explain MySQL performing better with 1:1) Or, to make my point (somewhat) clearer: how did you actually compare advantages of 1:1 versus M:N when the change from the latter to the former was decided ? And second question: would it be possible to dynamically choose one way over the other: meaning if you know you're mostly I/O bound, then request for the 1:1 type of threads, and vice versa ? thanks, gregory _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
