mirror_zfs/include/sys
Ameer Hamza d1f290f1ea L2ARC: Implement DWPD-based rate limiting with adaptive feed intervals
Add DWPD (Drive Writes Per Day) rate limiting to control L2ARC write
speeds and protect SSD endurance. Write rate is constrained by the
minimum of l2arc_write_max and DWPD-calculated budget. Devices
accumulate unused write budget over 24-hour periods with automatic reset
and carry-over. Writes occur in controlled bursts (max 50MB) with
adaptive intervals to achieve target rates. Applies after initial device
fill.

Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #18093
2026-02-04 10:07:07 -08:00
..
crypto icp: remove global icp includes 2025-11-12 10:03:51 -08:00
fm Detect a slow raidz child during reads 2025-09-10 15:25:03 -07:00
fs Add snapshots_changed_nsecs dataset property 2026-01-06 09:36:20 -08:00
lua SPDX: license tags: MIT 2025-03-13 17:56:54 -07:00
sysevent SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zstd SPDX: license tags: BSD-3-Clause 2025-03-13 17:56:50 -07:00
abd_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
abd.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
aggsum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
arc_impl.h L2ARC: Implement DWPD-based rate limiting with adaptive feed intervals 2026-02-04 10:07:07 -08:00
arc.h L2ARC: Implement per-device feed threads for parallel writes 2026-02-04 10:07:02 -08:00
asm_linkage.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
avl_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
avl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bitmap.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bitops.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
blake3.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
blkptr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bplist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bpobj.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bptree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
bqueue.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
brt_impl.h BRT: Fix ranges to blocks conversion math 2025-11-10 13:58:39 -08:00
brt.h Add BRT support to zpool prefetch command 2025-11-10 16:16:22 -08:00
btree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dataset_kstats.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dbuf.h Implement physical rewrites 2025-08-06 10:36:56 -07:00
ddt_impl.h DDT: Switch to using ZAP _by_dnode() interfaces 2025-12-15 09:49:14 -08:00
ddt.h DDT: Add locking for table ZAP destruction 2026-01-13 15:07:15 -08:00
dmu_impl.h dnode: remove dn_dirtyctx and dnode_dirtycontext 2025-08-21 06:05:38 -07:00
dmu_objset.h Relax special_small_blocks restrictions 2025-07-02 11:11:37 -07:00
dmu_recv.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
dmu_redact.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_send.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dmu_traverse.h Allow physical rewrite without logical 2025-08-06 10:36:07 -07:00
dmu_tx.h dmu_tx: break tx assign/wait when pool suspends 2025-05-28 10:28:51 -07:00
dmu_zfetch.h Wire O_DIRECT also to Uncached I/O (#17218) 2025-05-13 14:26:55 -07:00
dmu.h Fix caching of DDT log and BRT 2025-10-30 16:28:28 -07:00
dnode.h dnode: remove dn_dirtyctx and dnode_dirtycontext 2025-08-21 06:05:38 -07:00
dsl_bookmark.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_crypt.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_dataset.h dsl_dataset: rename dmu_objset_clone* to dsl_dataset_clone* 2025-06-10 14:52:43 -07:00
dsl_deadlist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_deleg.h ZFS allow send:encrypted 2025-09-12 09:53:31 -07:00
dsl_destroy.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_dir.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
dsl_pool.h Unified allocation throttling (#17020) 2025-03-24 09:25:01 -07:00
dsl_prop.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_scan.h Improve async destroy processing timing 2025-12-11 18:46:08 -08:00
dsl_synctask.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
dsl_userhold.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
edonr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
efi_partition.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
frame.h Linux build: silence objtool warnings 2025-06-04 17:40:09 -07:00
hkdf.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
metaslab_impl.h range_tree: Provide more debug details upon unexpected add/remove 2025-07-31 10:44:42 -04:00
metaslab.h metaslab: don't pass whole zio to throttle reserve APIs 2025-07-04 23:22:22 -04:00
mmp.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
mntent.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
multilist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
nvpair_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
nvpair.h nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
objlist.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
pathname.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
qat.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
range_tree.h range_tree: drop duplicate zfs_ prefix from rs_set_fill_raw 2025-09-29 16:38:52 -07:00
rrwlock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sa_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sa.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sha2.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
skein.h SPDX: license tags: LicenseRef-OpenZFS-ThirdParty-PublicDomain 2025-03-13 17:57:31 -07:00
spa_checkpoint.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
spa_checksum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
spa_impl.h L2ARC: Implement persistent markers with consistent tail scanning 2026-02-04 10:06:47 -08:00
spa_log_spacemap.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
spa.h Rename several printf attributes declarations to __printf__ 2026-01-05 14:15:22 -08:00
space_map.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
space_reftree.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
sysevent.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
txg_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
txg.h txg_wait_synced_flags: add TXG_WAIT_SUSPEND flag to not wait if pool suspended 2025-05-28 10:27:46 -07:00
u8_textprep_data.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
u8_textprep.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uberblock_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uberblock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uio_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
unique.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
uuid.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_disk.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_draid.h Implement allocation size ranges and use for gang leaves (#17111) 2025-05-02 15:32:18 -07:00
vdev_file.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_impl.h Add knob to disable slow io notifications 2025-11-11 10:42:17 -08:00
vdev_indirect_births.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_indirect_mapping.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_initialize.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_raidz_impl.h Detect a slow raidz child during reads 2025-09-10 15:25:03 -07:00
vdev_raidz.h Detect a slow raidz child during reads 2025-09-10 15:25:03 -07:00
vdev_rebuild.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_removal.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev_trim.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
vdev.h Rename several printf attributes declarations to __printf__ 2026-01-05 14:15:22 -08:00
xvattr.h Add support for FreeBSD's Solaris style extended attribute interface 2025-07-30 09:49:43 -07:00
zap_impl.h DDT: Add/use zap_lookup_length_uint64_by_dnode() 2025-12-15 14:38:34 -08:00
zap_leaf.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zap.h DDT: Add/use zap_lookup_length_uint64_by_dnode() 2025-12-15 14:38:34 -08:00
zcp_global.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_iter.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_prop.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp_set.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zcp.h cred: properly pass and test creds on other threads (#17273) 2025-04-29 16:27:48 -07:00
zfeature.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_acl.h libspl: move vattr and xvattr definitions from zfs_context.h 2025-11-12 10:00:24 -08:00
zfs_bootenv.h libzpool: add BE_POSIX_VENDOR for userspace bootenv 2025-11-12 10:03:07 -08:00
zfs_chksum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_context.h zfs_context: remove duplicate includes 2025-11-12 10:04:03 -08:00
zfs_debug.h Rename several printf attributes declarations to __printf__ 2026-01-05 14:15:22 -08:00
zfs_delay.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_file.h Ensure 64-bit off_t is used in user space instead of loff_t 2025-12-10 09:45:39 -08:00
zfs_fuid.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_ioctl_impl.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_ioctl.h zinject: Introduce ready delay fault injection 2025-10-01 12:17:13 -07:00
zfs_onexit.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_project.h Linux 6.17 compat: Fix broken projectquota on 6.17 2025-11-05 16:22:03 -08:00
zfs_quota.h Show default quotas in zfs userspace tools 2025-04-03 10:36:45 -07:00
zfs_racct.h Wire O_DIRECT also to Uncached I/O (#17218) 2025-05-13 14:26:55 -07:00
zfs_ratelimit.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_refcount.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_rlock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_sa.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_stat.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_sysfs.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_vfsops.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zfs_vnops.h Introduce zfs rewrite subcommand (#17246) 2025-05-12 10:22:17 -07:00
zfs_znode.h Prefer VERIFY0(n) over VERIFY(n == 0) 2025-08-07 11:40:59 -07:00
zil_impl.h ZIL: Make allocations more flexible 2025-08-14 08:50:17 -07:00
zil.h ZIL: add zil_commit_flags() to make honouring failmode= optional 2025-08-08 16:43:33 -07:00
zio_checksum.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_compress.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_crypt.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zio_impl.h ZIO: ZIO_STAGE_DDT_WRITE is a blocking stage 2025-12-10 19:51:53 -05:00
zio.h zinject: Introduce ready delay fault injection 2025-10-01 12:17:13 -07:00
zrlock.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zthr.h SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
zvol_impl.h zvol_remove_minors_impl: remove all async fallbacks 2025-08-19 10:06:47 -07:00
zvol.h zvol: reject suspend attempts when zvol is shutting down 2025-09-03 11:13:09 -07:00