Messages in this thread | | | Date | Tue, 21 Jun 2011 11:15:01 +0800 | From | Cong Wang <> | Subject | Re: [PATCH 1/3] mm: completely disable THP by transparent_hugepage=never |
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于 2011年06月21日 03:43, Andrea Arcangeli 写道: > On Tue, Jun 21, 2011 at 01:01:17AM +0800, Cong Wang wrote: >> Without this patch, THP is still initialized (although khugepaged is not started), >> that is what I don't want to see when I pass "transparent_hugepage=never", >> because "never" for me means THP is totally unseen, even not initialized. > > The ram saving by not registering in sysfs is not worth the loss of > generic functionality. You can try to make the hash and slab > khugepaged allocations more dynamic if you want to microoptimize for > RAM usage, that I wouldn't be against if you find a way to do it > simply and without much complexity (and .text) added. But likely there > are other places to optimize that may introduce less tricks and would > give you a bigger saving than ~8kbytes, it's up to you.
But the THP functionality is not going to be used.
Yeah, sounds reasonable, I will try to check if I can make it.
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