Date: Mon, 20 Feb 2017 11:45:44 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 216178] ZFS ARC and L2ARC are unrealistically large, maybe after r307265 Message-ID: <bug-216178-3630-OLsyea51EY@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-216178-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-216178-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D216178 --- Comment #11 from Lev A. Serebryakov <lev@FreeBSD.org> --- Same result. 11.0-STABLE FreeBSD 11.0-STABLE #8 r313940M: Sun Feb 19 15:16:42 MSK 2017 Attached patch was applied! % sudo smartctl -A /dev/da5 smartctl 6.5 2016-05-07 r4318 [FreeBSD 11.0-STABLE amd64] (local build) Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org =3D=3D=3D START OF INFORMATION SECTION =3D=3D=3D Model Family: Samsung based SSDs Device Model: Samsung SSD 850 EVO 250GB Serial Number: S2R4NB0J115081X LU WWN Device Id: 5 002538 d41a03ed9 Firmware Version: EMT02B6Q User Capacity: 250,059,350,016 bytes [250 GB] Sector Size: 512 bytes logical/physical Rotation Rate: Solid State Device Form Factor: 2.5 inches Device is: In smartctl database [for details use: -P show] ATA Version is: ACS-2, ATA8-ACS T13/1699-D revision 4c SATA Version is: SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s) Local Time is: Mon Feb 20 14:41:13 2017 MSK SMART support is: Available - device has SMART capability. SMART support is: Enabled ... % zpool list -v NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALT= ROOT zroot 95.5G 18.1G 77.4G - 16% 18% 1.00x ONLINE - gpt/root 95.5G 18.1G 77.4G - 16% 18% zstor 13.6T 9.15T 4.48T - 25% 67% 1.00x ONLINE - raidz1 13.6T 9.15T 4.48T - 25% 67% da1 - - - - - - da0 - - - - - - da2 - - - - - - da3 - - - - - - da4 - - - - - - cache - - - - - - da5 233G 526G 16.0E - 0% 225% % sysctl -a | grep l2 kern.features.linuxulator_v4l2: 1 kern.cam.ctl2cam.max_sense: 252 vfs.zfs.l2c_only_size: 0 vfs.zfs.l2arc_norw: 1 vfs.zfs.l2arc_feed_again: 1 vfs.zfs.l2arc_noprefetch: 1 vfs.zfs.l2arc_feed_min_ms: 200 vfs.zfs.l2arc_feed_secs: 1 vfs.zfs.l2arc_headroom: 2 vfs.zfs.l2arc_write_boost: 8388608 vfs.zfs.l2arc_write_max: 8388608 vfs.cache.numfullpathfail2: 0 kstat.zfs.misc.arcstats.l2_write_buffer_list_null_iter: 4522 kstat.zfs.misc.arcstats.l2_write_buffer_list_iter: 567486 kstat.zfs.misc.arcstats.l2_write_buffer_bytes_scanned: 10356335975424 kstat.zfs.misc.arcstats.l2_write_pios: 131233 kstat.zfs.misc.arcstats.l2_write_buffer_iter: 142392 kstat.zfs.misc.arcstats.l2_write_full: 34822 kstat.zfs.misc.arcstats.l2_write_not_cacheable: 6310602 kstat.zfs.misc.arcstats.l2_write_io_in_progress: 376 kstat.zfs.misc.arcstats.l2_write_in_l2: 63312026 kstat.zfs.misc.arcstats.l2_write_spa_mismatch: 3663622 kstat.zfs.misc.arcstats.l2_write_passed_headroom: 255811 kstat.zfs.misc.arcstats.l2_write_trylock_fail: 6901 kstat.zfs.misc.arcstats.l2_padding_needed: 0 kstat.zfs.misc.arcstats.l2_hdr_size: 93854992 kstat.zfs.misc.arcstats.l2_asize: 565424867840 kstat.zfs.misc.arcstats.l2_size: 567082335232 kstat.zfs.misc.arcstats.l2_io_error: 0 kstat.zfs.misc.arcstats.l2_cksum_bad: 430864 kstat.zfs.misc.arcstats.l2_abort_lowmem: 3 kstat.zfs.misc.arcstats.l2_free_on_write: 273 kstat.zfs.misc.arcstats.l2_evict_l1cached: 69699 kstat.zfs.misc.arcstats.l2_evict_reading: 0 kstat.zfs.misc.arcstats.l2_evict_lock_retry: 10 kstat.zfs.misc.arcstats.l2_writes_lock_retry: 4 kstat.zfs.misc.arcstats.l2_writes_error: 0 kstat.zfs.misc.arcstats.l2_writes_done: 131233 kstat.zfs.misc.arcstats.l2_writes_sent: 131233 kstat.zfs.misc.arcstats.l2_write_bytes: 648248758272 kstat.zfs.misc.arcstats.l2_read_bytes: 326535054336 kstat.zfs.misc.arcstats.l2_rw_clash: 0 kstat.zfs.misc.arcstats.l2_feeds: 142392 kstat.zfs.misc.arcstats.l2_misses: 3610592 kstat.zfs.misc.arcstats.l2_hits: 1151244 kstat.zfs.misc.arcstats.evict_l2_skip: 0 kstat.zfs.misc.arcstats.evict_l2_ineligible: 351227303936 kstat.zfs.misc.arcstats.evict_l2_eligible: 21983154688 kstat.zfs.misc.arcstats.evict_l2_cached: 1323198704640 % kstat.zfs.misc.arcstats.l2_cksum_bad starts to rise right after L2ARC "overfill"! --=20 You are receiving this mail because: You are the assignee for the bug.=
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