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List:       linux-kernel
Subject:    Re: [PATCH] hugetlb: vmstat events for huge page allocations
From:       KOSAKI Motohiro <kosaki.motohiro () jp ! fujitsu ! com>
Date:       2008-03-31 23:28:12
Message-ID: 20080401082435.3A47.KOSAKI.MOTOHIRO () jp ! fujitsu ! com
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Hi

> Allocating huge pages directly from the buddy allocator is not guaranteed
> to succeed.  Success depends on several factors (such as the amount of
> physical memory available and the level of fragmentation).  With the
> addition of dynamic hugetlb pool resizing, allocations can occur much more
> frequently.  For these reasons it is desirable to keep track of huge page
> allocation successes and failures.
> 
> Add two new vmstat entries to track huge page allocations that succeed and
> fail.  The presence of the two entries is contingent upon
> CONFIG_HUGETLB_PAGE being enabled.

In generaly, I like this patch.

Have you seen Andi Kleen's "GB pages hugetlb support" series?
it contain multiple size hugepage support.
if it is merged, Is your patch caused any effect?



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