Messages in this thread | | | From | "Kirill A. Shutemov" <> | Subject | RE: [PATCH] mm: create a separate slab for page->ptl allocation | Date | Mon, 4 Nov 2013 12:42:59 +0200 (EET) |
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Kirill A. Shutemov wrote: > If DEBUG_SPINLOCK and DEBUG_LOCK_ALLOC are enabled spinlock_t on x86_64 > is 72 bytes. For page->ptl they will be allocated from kmalloc-96 slab, > so we loose 24 on each. An average system can easily allocate few tens > thousands of page->ptl and overhead is significant. > > Let's create a separate slab for page->ptl allocation to solve this. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
ping?
-- Kirill A. Shutemov
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