Date: Tue, 12 Feb 2019 21:50:35 +0300 From: Lev Serebryakov <lev@FreeBSD.org> To: Eugene Grosbein <eugen@grosbein.net>, Kurt Jaeger <pi@opsec.eu> Cc: freebsd-stable@freebsd.org, Garrett Wollman <wollman@bimajority.org> Subject: Re: 11.2-STABLE kernel wired memory leak Message-ID: <331bbb5f-6627-d73c-d174-0865234d296f@FreeBSD.org> In-Reply-To: <80e414af-058c-5f84-0f9b-36529d5e06b4@grosbein.net> References: <d8c7abc0-3ba1-40e4-22b1-1b30d28ced14@grosbein.net> <201902121757.x1CHve0h056876@hergotha.csail.mit.edu> <7125e053-5adf-929a-bde6-a64fceae2aaa@grosbein.net> <8a9361fd-4701-4e33-33f0-e4800af7637c@grosbein.net> <20190212182915.GM2748@home.opsec.eu> <80e414af-058c-5f84-0f9b-36529d5e06b4@grosbein.net>
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From: Lev Serebryakov <lev@FreeBSD.org>
Reply-To: lev@FreeBSD.org
To: Eugene Grosbein <eugen@grosbein.net>, Kurt Jaeger <pi@opsec.eu>
Cc: freebsd-stable@freebsd.org, Garrett Wollman <wollman@bimajority.org>
Message-ID: <331bbb5f-6627-d73c-d174-0865234d296f@FreeBSD.org>
Subject: Re: 11.2-STABLE kernel wired memory leak
References: <d8c7abc0-3ba1-40e4-22b1-1b30d28ced14@grosbein.net>
<201902121757.x1CHve0h056876@hergotha.csail.mit.edu>
<7125e053-5adf-929a-bde6-a64fceae2aaa@grosbein.net>
<8a9361fd-4701-4e33-33f0-e4800af7637c@grosbein.net>
<20190212182915.GM2748@home.opsec.eu>
<80e414af-058c-5f84-0f9b-36529d5e06b4@grosbein.net>
In-Reply-To: <80e414af-058c-5f84-0f9b-36529d5e06b4@grosbein.net>
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On 12.02.2019 21:37, Eugene Grosbein wrote:
>> vfs.zfs.arc_max=3D1216348160
>=20
> Each line shows how many megabytes is allocated but currently unused by=
corresponding
> UMA zone (and unavailable for other consumers). Your numbers are pretty=
low,
> you have nothing to worry about IMHO. I have hundreds of megabytes and =
gigabytes there.
I'm have same problem.
According to top(1) I have 29G Wired, but only 17G Total ARC (12G
difference! System has 32G of RAM), and this statistic shows:
5487.5 zio_data_buf_524288
920.125 zio_data_buf_131072
626 zio_buf_131072
468 zio_data_buf_1048576
398.391 zio_buf_16384
305.464 dnode_t
227.989 zio_buf_512
171.5 zio_data_buf_458752
141.75 zio_data_buf_393216
116.456 dmu_buf_impl_t
So, more than 6G (!) is not used in ARC, but hold by ZFS anyway.
--=20
// Lev Serebryakov
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