svn commit: r233925 - in head: sys/kern sys/sys sys/vm usr.bin/kdump usr.bin/ktrace

[Peter Jeremy]

On 2012-Apr-05 17:13:14 +0000, John Baldwin <jhb at FreeBSD.org> wrote:
>Log:
>  Add new ktrace records for the start and end of VM faults.  This gives
>  a pair of records similar to syscall entry and return that a user can
>  use to determine how long page faults take.  The new ktrace records are
>  enabled via the 'p' trace type, and are enabled in the default set of
>  trace points.

I've just found a case where this is very useful but I find that
the PFLT/PRET entries are clutter much of the time and would suggest
that they be off by default.

>  MFC after:	2 weeks

This expired some time ago, do you intend to MFC these changes in
the near future?

-- 
Peter Jeremy
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