On 12/17/12 10:47 PM, Minchan Kim wrote:
I hope more inputs from user-space allocator people and test patch with their allocator because it might need design change of arena management for getting real vaule.
jemalloc knows how to handle MADV_FREE on platforms that support it. This looks similar (we'll need a SIGBUS handler that does the right thing = zero the page + mark it as non-volatile in the common case).
All of this of course assumes that apps madvise the kernel through APIs exposed by the malloc implementation - not via a raw syscall.
In other words, some new user space code needs to be written to test this out fully. Sounds feasible though.
-Arun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
