Date: Wed, 21 Nov 2018 17:53:06 +0300 From: Lev Serebryakov <lev@FreeBSD.org> 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. Message-ID: <807023120.20181121175306@serebryakov.spb.ru> In-Reply-To: <92e3ea2e-b7ed-ec26-c56b-2d2acbf41772@grosbein.net> References: <e2422965-0890-2d15-4716-0a31426b0a66@FreeBSD.org> <20181120204537.GB2630@raichu> <1999292077.20181121135618@serebryakov.spb.ru> <123493949.20181121143445@serebryakov.spb.ru> <baf85324-0d6d-bd4b-385d-8280bc7a93a3@grosbein.net> <228548325.20181121170325@serebryakov.spb.ru> <92e3ea2e-b7ed-ec26-c56b-2d2acbf41772@grosbein.net>
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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
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