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The single linked list of memory contexts could result in O(N^2) performance to free a set of contexts if they were not freed in reverse order of creation. In many cases the reverse order was used, but there were some significant exceptions that caused real- world performance problems. Rather than requiring all callers to care about the order in which contexts were freed, and hunting down and changing all existing cases where the wrong order was used, we add one pointer per memory context so that the implementation details are not so visible. Jan Wieck |
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| adt | ||
| cache | ||
| error | ||
| fmgr | ||
| hash | ||
| init | ||
| mb | ||
| misc | ||
| mmgr | ||
| resowner | ||
| sort | ||
| time | ||
| .gitignore | ||
| errcodes.txt | ||
| Gen_dummy_probes.sed | ||
| Gen_fmgrtab.pl | ||
| generate-errcodes.pl | ||
| Makefile | ||
| probes.d | ||