Searched hist:97963 (Results 1 - 2 of 2) sorted by relevance
| /freebsd-10.1-release/sys/sys/ | ||
| H A D | _lock.h | diff 97963 Thu Jun 06 18:51:04 MDT 2002 jhb Change the all locks list from a STAILQ to a TAILQ. This bloats struct lock_object by another pointer (though all of lock_object should be conditional on LOCK_DEBUG anyways) in exchange for an O(1) TAILQ_REMOVE() in witness_destroy() (called for every mtx_destroy() and sx_destroy()) instead of an O(n) STAILQ_REMOVE. Since WITNESS is so dog slow as it is, the speed-up is worth the space cost. Suggested by: iedowse |
| /freebsd-10.1-release/sys/kern/ | ||
| H A D | subr_witness.c | diff 97963 Thu Jun 06 18:51:04 MDT 2002 jhb Change the all locks list from a STAILQ to a TAILQ. This bloats struct lock_object by another pointer (though all of lock_object should be conditional on LOCK_DEBUG anyways) in exchange for an O(1) TAILQ_REMOVE() in witness_destroy() (called for every mtx_destroy() and sx_destroy()) instead of an O(n) STAILQ_REMOVE. Since WITNESS is so dog slow as it is, the speed-up is worth the space cost. Suggested by: iedowse |
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