Date: Wed, 21 Nov 2018 14:34:45 +0300 From: Lev Serebryakov <lev@FreeBSD.org> To: 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: <123493949.20181121143445@serebryakov.spb.ru> In-Reply-To: <1999292077.20181121135618@serebryakov.spb.ru> References: <e2422965-0890-2d15-4716-0a31426b0a66@FreeBSD.org> <20181120204537.GB2630@raichu> <1999292077.20181121135618@serebryakov.spb.ru>
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Hello Lev, Wednesday, November 21, 2018, 1:56:18 PM, you wrote: >> Could you show the output of "vmstat -s" when in this state? > Now ARC is 1.9GB (!!!) and 15G is still Wired: > % vmstat -s > 1311134466 cpu context switches > 2126950424 device interrupts > 45414140 software interrupts > 103215017 traps > 2910067754 system calls > 25 kernel threads created > 108756 fork() calls > 50914 vfork() calls > 111 rfork() calls > 0 swap pager pageins > 0 swap pager pages paged in > 0 swap pager pageouts > 0 swap pager pages paged out > 4201 vnode pager pageins > 51719 vnode pager pages paged in > 31597 vnode pager pageouts > 63028 vnode pager pages paged out > 7 page daemon wakeups > 1212387275 pages examined by the page daemon > 0 clean page reclamation shortfalls > 0 pages reactivated by the page daemon > 8281789 copy-on-write faults > 7909 copy-on-write optimized faults > 44440180 zero fill pages zeroed > 24762 zero fill pages prezeroed > 2 intransit blocking page faults > 63838217 total VM faults taken > 3816 page faults requiring I/O > 0 pages affected by kernel thread creation > 3996512 pages affected by fork() > 1842784 pages affected by vfork() > 5499 pages affected by rfork() > 88771375 pages freed > 0 pages freed by daemon > 21591789 pages freed by exiting processes > 4936 pages active > 161234 pages inactive > 16674 pages in the laundry queue > 3848989 pages wired down > 39951 pages free > 4096 bytes per page > 612681203 total name lookups > cache hits (95% pos + 0% neg) system 0% per-directory > deletions 0%, falsehits 0%, toolong 0% > % And here top consumers. I don't like that most of te memory is in FREE abd_chunks - 8GB! USED (b) FREE (b) NAME 28785840 9299280 VM OBJECT 33817600 11413760 256 36598392 2486808 S VFS Cache 38157856 246224 arc_buf_hdr_t_l2only 44302336 629276672 zio_buf_131072 50377824 53424 sa_cache 72323072 85626880 mbuf_jumbo_page 74094592 55296 mbuf_cluster 90320896 63102976 4096 92359344 67056 zfs_znode_cache 126912480 159632160 dmu_buf_impl_t 150967296 233911296 mbuf_jumbo_9k 165164600 92040 VNODE 199124480 23927520 UMA Slabs 209715200 8388608 zio_data_buf_1048576 218103808 48758784 zio_data_buf_524288 259242496 293377536 zio_buf_512 346030080 383516672 zio_buf_16384 375592672 346991008 dnode_t 531902464 8392536064 abd_chunk -- Best regards, Lev mailto:lev@FreeBSD.org
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