svn commit: r270759 - in head/sys: cddl/compat/opensolaris/kern cddl/compat/opensolaris/sys cddl/contrib/opensolaris/uts/common/fs/zfs vm

Matthew D. Fuller fullermd at
Thu Aug 28 21:15:16 UTC 2014

On Thu, Aug 28, 2014 at 10:11:39PM +0100 I heard the voice of
Steven Hartland, and lo! it spake thus:
> Its very likely applicable to stable/9 although I've never used 9
> myself, we jumped from 9 direct to 10.

This is actually hitting two different issues from the two bugs:

- 191510 is about "ARC isn't greedy enough" on huge-memory machines,
  and from the osreldate that bug was filed on 9.2, so presumably is

- 187594 is about "ARC is too greedy" (probably mostly on not-so-huge
  machines) and starves/drives the rest of the system into swap.  That
  I believe came about as a result of some unrelated change in the
  10.x stream that upset the previous balance between ARC and the rest
  of the VM, so isn't a problem on 9.x.

Matthew Fuller     (MF4839)   |  fullermd at
Systems/Network Administrator |
           On the Internet, nobody can hear you scream.

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