zfs very poor performance compared to ufs due to lack of cache?

[Steven Hartland]

----- Original Message ----- 
From: "Andriy Gapon" <avg at freebsd.org>

>>> --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
>>> +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
>>> @@ -500,6 +500,7 @@ again:
>>>  sched_unpin();
>>>  }
>>>  VM_OBJECT_LOCK(obj);
>>> + vm_page_set_validclean(m, off, bytes);
>> Only if error == 0, perhaps ?

Ok tried this and still no joy, the value of the cache always falls to that of the min
value and all memory used by sendfile still seems to get lost into inactive memory :(

    Regards
    Steve

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