ruby-changes:4193
From: ko1@a...
Date: Tue, 4 Mar 2008 10:21:24 +0900 (JST)
Subject: [ruby-changes:4193] nobu - Ruby:r15683 (trunk): * gc.c (add_heap): use binary search to find the place to insert the
nobu 2008-03-04 10:21:06 +0900 (Tue, 04 Mar 2008) New Revision: 15683 Modified files: trunk/ChangeLog trunk/gc.c Log: * gc.c (add_heap): use binary search to find the place to insert the new heap slot. [ruby-dev:33983] http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15683&r2=15682&diff_format=u http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/gc.c?r1=15683&r2=15682&diff_format=u Index: ChangeLog =================================================================== --- ChangeLog (revision 15682) +++ ChangeLog (revision 15683) @@ -1,3 +1,8 @@ +Tue Mar 4 10:21:03 2008 Nobuyoshi Nakada <nobu@r...> + + * gc.c (add_heap): use binary search to find the place to insert the + new heap slot. [ruby-dev:33983] + Tue Mar 04 05:30:31 2008 NARUSE, Yui <naruse@r...> * io.c (open_key_args): use rb_io_open instead of rb_f_open. Index: gc.c =================================================================== --- gc.c (revision 15682) +++ gc.c (revision 15683) @@ -413,18 +413,11 @@ } } -static int -heap_cmp(const void *ap, const void *bp, void *dummy) -{ - const struct heaps_slot *a = ap, *b = bp; - - return a->membase - b->membase; -} - static void add_heap(void) { - RVALUE *p, *pend; + RVALUE *p, *pend, *membase; + long hi, lo, mid; if (heaps_used == heaps_length) { /* Realloc heaps */ @@ -451,17 +444,38 @@ rb_memerror(); } heap_slots = HEAP_MIN_SLOTS; - continue; } - heaps[heaps_used].membase = p; - if ((VALUE)p % sizeof(RVALUE) == 0) - heap_slots += 1; - else - p = (RVALUE*)((VALUE)p + sizeof(RVALUE) - ((VALUE)p % sizeof(RVALUE))); - heaps[heaps_used].slot = p; - heaps[heaps_used].limit = heap_slots; - break; + else { + break; + } } + + lo = 0; + hi = heaps_used; + while (lo < hi) { + mid = (lo + hi) / 2; + membase = heaps[mid].membase; + if (membase < p) { + lo = mid + 1; + } + else if (membase > p) { + hi = mid; + } + else { + rb_bug("same heap slot is allocated: %p at %ld", p, mid); + } + } + + if ((VALUE)p % sizeof(RVALUE) == 0) + heap_slots += 1; + else + p = (RVALUE*)((VALUE)p + sizeof(RVALUE) - ((VALUE)p % sizeof(RVALUE))); + if (hi < heaps_used) { + MEMMOVE(&heaps[hi+1], &heaps[hi], VALUE, heaps_used - hi); + } + heaps[hi].membase = p; + heaps[hi].slot = p; + heaps[hi].limit = heap_slots; pend = p + heap_slots; if (lomem == 0 || lomem > p) lomem = p; if (himem < pend) himem = pend; @@ -474,7 +488,6 @@ freelist = p; p++; } - ruby_qsort(heaps, heaps_used, sizeof(struct heaps_slot), heap_cmp, 0); } #define RANY(o) ((RVALUE*)(o)) -- ML: ruby-changes@q... Info: http://www.atdot.net/~ko1/quickml/