From owner-freebsd-fs@freebsd.org  Wed Nov 21 14:53:15 2018
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Date: Wed, 21 Nov 2018 17:53:06 +0300
From: Lev Serebryakov <lev@FreeBSD.org>
Reply-To: Lev Serebryakov <lev@FreeBSD.org>
Organization: FreeBSD
Message-ID: <807023120.20181121175306@serebryakov.spb.ru>
To: Eugene Grosbein <eugen@grosbein.net>, Mark Johnston <markj@freebsd.org>
CC: FreeBSD FS <freebsd-fs@freebsd.org>, 
 FreeBSD stable <freebsd-stable@freebsd.org>
Subject: Re: Where is my memory on 'fresh' 11-STABLE? It should be used by ARC, but it 
 is not used for it anymore.
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Hello Eugene,

Wednesday, November 21, 2018, 5:19:32 PM, you wrote:

>>  It is more likely that there is a bug in "priority" for memory
>> distribution: abd FREE memory has higher priority than ARC somehow.
> OTOH, if "abd_chunks" part of ZFS ARC is not released to the UMA
> from which it was allocated (to be reused by other parts of the kernel)
> but is reused by ZFS itself, then top(1) should report it as part of ZFS ARC
> and not as other "Wired" memory.
 It will be better to system use this memory for ARC and not as "Free" chunks for
future usage :-)


-- 
Best regards,
 Lev                            mailto:lev@FreeBSD.org