zfs arc - just take it all and be good to me
Andriy Gapon
avg at icyb.net.ua
Wed Aug 25 14:43:42 UTC 2010
on 25/08/2010 16:21 Ollivier Robert said the following:
> According to Andriy Gapon:
>> Could you please double-check? Is the check for vm_paging_needed() indeed?
>> That could have been a slightly different patch.
>
> 695 [15:19] root at centre:src/sys# svn diff cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
> Index: cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c
> ===================================================================
> --- cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c (revision 210515)
> +++ cddl/contrib/opensolaris/uts/common/fs/zfs/arc.c (working copy)
> @@ -2123,8 +2123,9 @@
> /*
> * If pages are needed or we're within 2048 pages
> * of needing to page need to reclaim
> + * XXX Try to workaround zfs overzealousness from gav/avg
> */
> - if (vm_pages_needed || (vm_paging_target() > -2048))
> + if (vm_pages_needed)
> return (1);
Note that vm_pages_needed != vm_paging_needed().
Talk about confusing :)
--
Andriy Gapon
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