9d03c3f56c
Memory unmapping causes slow address space fragmentation, leading in extreme cases to failing to allocate pages at all. Removing this problem by keeping all the pages allocated to us, yet calling madvise() to let kernel dispose of them. This adds a little complexity and overhead as we have to keep the pointers to the free pages, therefore to hold e.g. 1 GB of 4K pages with 8B pointers, we have to store 2 MB of data. |
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| .. | ||
| bsd | ||
| cf | ||
| linux | ||
| unix | ||
| config.h | ||
| Doc | ||
| sysdep.sgml | ||