From owner-freebsd-fs@freebsd.org Wed Feb 8 11:10:59 2017 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 635FECD655F for ; Wed, 8 Feb 2017 11:10:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 49A331E07 for ; Wed, 8 Feb 2017 11:10:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v18BAxnJ035343 for ; Wed, 8 Feb 2017 11:10:59 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 216364] ZFS ARC cache is duplicating data? The cache size gets bigger then the pool. Date: Wed, 08 Feb 2017 11:10:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: misc X-Bugzilla-Version: 11.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: k_georgiev@deltanews.bg X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Feb 2017 11:10:59 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D216364 --- Comment #8 from k_georgiev@deltanews.bg --- Hello again,=20 If it will be useful now I got the cache size larger than the pool, this is= the current status: ARC: 7713M Total, 1950M MFU, 5343M MRU, 746K Anon, 26M Header, 394M Other And again the statistics you requested: root@varnish:/tmp # sysctl kstat.zfs.misc.arcstats kstat.zfs.misc.arcstats.demand_hit_predictive_prefetch: 1139 kstat.zfs.misc.arcstats.sync_wait_for_async: 97 kstat.zfs.misc.arcstats.arc_meta_min: 975210240 kstat.zfs.misc.arcstats.arc_meta_max: 728642168 kstat.zfs.misc.arcstats.arc_meta_limit: 3900840960 kstat.zfs.misc.arcstats.arc_meta_used: 717771648 kstat.zfs.misc.arcstats.duplicate_reads: 2495 kstat.zfs.misc.arcstats.duplicate_buffers_size: 0 kstat.zfs.misc.arcstats.duplicate_buffers: 0 kstat.zfs.misc.arcstats.memory_throttle_count: 0 kstat.zfs.misc.arcstats.l2_write_buffer_list_null_iter: 0 kstat.zfs.misc.arcstats.l2_write_buffer_list_iter: 0 kstat.zfs.misc.arcstats.l2_write_buffer_bytes_scanned: 0 kstat.zfs.misc.arcstats.l2_write_pios: 0 kstat.zfs.misc.arcstats.l2_write_buffer_iter: 0 kstat.zfs.misc.arcstats.l2_write_full: 0 kstat.zfs.misc.arcstats.l2_write_not_cacheable: 1 kstat.zfs.misc.arcstats.l2_write_io_in_progress: 0 kstat.zfs.misc.arcstats.l2_write_in_l2: 0 kstat.zfs.misc.arcstats.l2_write_spa_mismatch: 0 kstat.zfs.misc.arcstats.l2_write_passed_headroom: 0 kstat.zfs.misc.arcstats.l2_write_trylock_fail: 0 kstat.zfs.misc.arcstats.l2_padding_needed: 0 kstat.zfs.misc.arcstats.l2_compress_failures: 0 kstat.zfs.misc.arcstats.l2_compress_zeros: 0 kstat.zfs.misc.arcstats.l2_compress_successes: 0 kstat.zfs.misc.arcstats.l2_hdr_size: 0 kstat.zfs.misc.arcstats.l2_asize: 0 kstat.zfs.misc.arcstats.l2_size: 0 kstat.zfs.misc.arcstats.l2_io_error: 0 kstat.zfs.misc.arcstats.l2_cksum_bad: 0 kstat.zfs.misc.arcstats.l2_abort_lowmem: 0 kstat.zfs.misc.arcstats.l2_cdata_free_on_write: 0 kstat.zfs.misc.arcstats.l2_free_on_write: 0 kstat.zfs.misc.arcstats.l2_evict_l1cached: 0 kstat.zfs.misc.arcstats.l2_evict_reading: 0 kstat.zfs.misc.arcstats.l2_evict_lock_retry: 0 kstat.zfs.misc.arcstats.l2_writes_lock_retry: 0 kstat.zfs.misc.arcstats.l2_writes_error: 0 kstat.zfs.misc.arcstats.l2_writes_done: 0 kstat.zfs.misc.arcstats.l2_writes_sent: 0 kstat.zfs.misc.arcstats.l2_write_bytes: 0 kstat.zfs.misc.arcstats.l2_read_bytes: 0 kstat.zfs.misc.arcstats.l2_rw_clash: 0 kstat.zfs.misc.arcstats.l2_feeds: 0 kstat.zfs.misc.arcstats.l2_misses: 0 kstat.zfs.misc.arcstats.l2_hits: 0 kstat.zfs.misc.arcstats.mfu_ghost_evictable_metadata: 0 kstat.zfs.misc.arcstats.mfu_ghost_evictable_data: 0 kstat.zfs.misc.arcstats.mfu_ghost_size: 0 kstat.zfs.misc.arcstats.mfu_evictable_metadata: 12150272 kstat.zfs.misc.arcstats.mfu_evictable_data: 65606144 kstat.zfs.misc.arcstats.mfu_size: 78327808 kstat.zfs.misc.arcstats.mru_ghost_evictable_metadata: 0 kstat.zfs.misc.arcstats.mru_ghost_evictable_data: 0 kstat.zfs.misc.arcstats.mru_ghost_size: 0 kstat.zfs.misc.arcstats.mru_evictable_metadata: 94340096 kstat.zfs.misc.arcstats.mru_evictable_data: 5329829888 kstat.zfs.misc.arcstats.mru_size: 5601754112 kstat.zfs.misc.arcstats.anon_evictable_metadata: 0 kstat.zfs.misc.arcstats.anon_evictable_data: 0 kstat.zfs.misc.arcstats.anon_size: 939520 kstat.zfs.misc.arcstats.other_size: 409772864 kstat.zfs.misc.arcstats.metadata_size: 284930560 kstat.zfs.misc.arcstats.data_size: 5396353536 kstat.zfs.misc.arcstats.hdr_size: 23068224 kstat.zfs.misc.arcstats.size: 6114125184 kstat.zfs.misc.arcstats.c_max: 15603363840 kstat.zfs.misc.arcstats.c_min: 1950420480 kstat.zfs.misc.arcstats.c: 15603363840 kstat.zfs.misc.arcstats.p: 7801681920 kstat.zfs.misc.arcstats.hash_chain_max: 3 kstat.zfs.misc.arcstats.hash_chains: 1313 kstat.zfs.misc.arcstats.hash_collisions: 159594 kstat.zfs.misc.arcstats.hash_elements_max: 95175 kstat.zfs.misc.arcstats.hash_elements: 80080 kstat.zfs.misc.arcstats.evict_l2_skip: 0 kstat.zfs.misc.arcstats.evict_l2_ineligible: 2048 kstat.zfs.misc.arcstats.evict_l2_eligible: 67584 kstat.zfs.misc.arcstats.evict_l2_cached: 0 kstat.zfs.misc.arcstats.evict_not_enough: 0 kstat.zfs.misc.arcstats.evict_skip: 1 kstat.zfs.misc.arcstats.mutex_miss: 0 kstat.zfs.misc.arcstats.deleted: 8 kstat.zfs.misc.arcstats.allocated: 10092961 kstat.zfs.misc.arcstats.mfu_ghost_hits: 0 kstat.zfs.misc.arcstats.mfu_hits: 6988925 kstat.zfs.misc.arcstats.mru_ghost_hits: 0 kstat.zfs.misc.arcstats.mru_hits: 1778668 kstat.zfs.misc.arcstats.prefetch_metadata_misses: 9879 kstat.zfs.misc.arcstats.prefetch_metadata_hits: 13990 kstat.zfs.misc.arcstats.prefetch_data_misses: 89 kstat.zfs.misc.arcstats.prefetch_data_hits: 1 kstat.zfs.misc.arcstats.demand_metadata_misses: 3994929 kstat.zfs.misc.arcstats.demand_metadata_hits: 7237192 kstat.zfs.misc.arcstats.demand_data_misses: 124103 kstat.zfs.misc.arcstats.demand_data_hits: 1530399 kstat.zfs.misc.arcstats.misses: 4129000 kstat.zfs.misc.arcstats.hits: 8781582 --=20 You are receiving this mail because: You are the assignee for the bug.=