Re: Threads not waking on pthread_cond_signal()
Ulrich Drepper <[email protected]>
| Newsgroups | gmane.comp.lib.phil |
|---|---|
| Organization | Red Hat, Inc. |
| Message-ID | <[email protected]> |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ian Wienand wrote: > Possibly the difference is that with requeue there are two futex calls > (one to move the queue, one to wake up a thread), where as the old > codepath only has one? Certainly, this is known to cause some slowdown. The elimination of the worst case behavior has a price. - -- - --------------. ,-. 444 Castro Street Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA Red Hat `--' drepper at redhat.com `--------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE+9y9k2ijCOnn/RHQRAp9KAKDHFx2EO/Fc6zNtsSbdFvUEyVA18ACeLU3t qCNwznE93V96hN0IKeVOStw= =5y3+ -----END PGP SIGNATURE-----