Date: Wed, 13 Feb 2019 02:18:09 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: lev@FreeBSD.org, 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: <3d7f4ac4-67e4-b010-64c6-0d84a4451246@grosbein.net> In-Reply-To: <331bbb5f-6627-d73c-d174-0865234d296f@FreeBSD.org> 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> <331bbb5f-6627-d73c-d174-0865234d296f@FreeBSD.org>
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13.02.2019 1:50, Lev Serebryakov wrote: > 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. dnode_t and dmu_buf_impl_t are parts of ZFS too, so these numbers represent about 9G, not 6G. Do you have/had some memory pressure here? Growth of swap usage?
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