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zfs/include/sys
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Alexander Motin 342357cd9e
Reduce number of metaslab preload taskq threads. 
Before this change ZFS created threads for 50% of CPUs for each top-
level vdev.  Plus it created the same number of threads for embedded
log groups (that have only one metaslab and don't need any preload).
As result, on system with 80 CPUs and pool of 60 vdevs this resulted
in 4800 metaslab preload threads, that is absolutely insane.

This patch changes the preload threads to 50% of CPUs in one taskq
per pool, so on the mentioned system it will be only 40 threads.

Among other things this fixes zdb on the mentioned system and pool
on FreeBSD, that failed to create so many threads in one process.

Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15319
 		2023-10-06 09:04:00 -07:00
..
crypto Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
fm Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events 2023-07-21 11:49:26 -07:00
fs Do not report bytes skipped by scan as issued. 2023-06-30 08:47:13 -07:00
lua autoconf: single-step includes 2022-05-10 10:18:51 -07:00
sysevent Teach zpool scrub to scrub only blocks in error log 2023-05-18 11:59:42 -07:00
zstd Unbreak zstd build on sparc64 2022-05-25 09:18:49 -07:00
abd.h Use __attribute__((malloc)) on memory allocation functions 2023-05-26 15:47:52 -07:00
abd_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
aggsum.h More aggsum optimizations 2021-06-07 09:02:47 -07:00
arc.h Remove ARC/ZIO physdone callbacks. 2023-06-15 10:49:03 -07:00
arc_impl.h ARC: Remove b_bufcnt/b_ebufcnt from ARC headers 2023-10-06 08:56:17 -07:00
asm_linkage.h Unify Assembler files between Linux and Windows 2023-01-17 11:09:19 -08:00
avl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
avl_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bitmap.h Replace dead opensolaris.org license links 2023-03-14 14:44:01 -07:00
bitops.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
blake3.h Update BLAKE3 for using the new impl handling 2023-03-02 13:52:27 -08:00
blkptr.h OpenZFS 8067 - zdb should be able to dump literal embedded block pointer 2017-07-07 11:28:01 -07:00
bplist.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bpobj.h Add explicit prefetches to bpobj_iterate(). 2023-07-21 11:50:48 -07:00
bptree.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
bqueue.h Batch enqueue/dequeue for bqueue 2023-01-10 13:39:22 -08:00
brt.h zdb: include cloned blocks in block statistics 2023-08-01 08:56:30 -07:00
btree.h btree: Implement faster binary search algorithm 2023-05-26 10:03:12 -07:00
dataset_kstats.h Add support for per dataset zil stats and use wmsum counters 2022-07-20 17:14:06 -07:00
dbuf.h Additional block cloning fixes. 2023-05-11 16:06:36 -07:00
ddt.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
dmu.h ZIL: Avoid dbuf_read() before dmu_sync(). 2023-08-11 09:04:08 -07:00
dmu_impl.h ZIL: Avoid dbuf_read() before dmu_sync(). 2023-08-11 09:04:08 -07:00
dmu_objset.h Silence clang warning of flexible array not at end 2023-04-18 18:10:40 -07:00
dmu_recv.h nvpair: Constify string functions 2023-03-14 15:25:50 -07:00
dmu_redact.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_send.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_traverse.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dmu_tx.h Add dmu_tx_hold_append() interface 2023-05-09 09:03:10 -07:00
dmu_zfetch.h Adjust prefetch parameters. 2023-07-21 11:51:47 -07:00
dnode.h Linux 6.3 compat: Fix memcpy "detected field-spanning write" error 2023-04-13 09:12:03 -07:00
dsl_bookmark.h Increase limit of redaction list by using spill block 2023-08-26 11:34:43 -07:00
dsl_crypt.h Fix zpool status in case of unloaded keys 2022-08-22 17:42:01 -07:00
dsl_dataset.h Revert zfeature_active() to static 2023-02-28 14:03:52 -08:00
dsl_deadlist.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
dsl_deleg.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_destroy.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_dir.h Cleanup ->dd_space_towrite should be unsigned 2023-01-20 11:10:15 -08:00
dsl_pool.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
dsl_prop.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_scan.h Do not report bytes skipped by scan as issued. 2023-06-30 08:47:13 -07:00
dsl_synctask.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
dsl_userhold.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
edonr.h Remove unused constant EdonR256_BLOCK_BITSIZE 2023-03-22 08:39:48 -07:00
efi_partition.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
frame.h Linux 5.10 compat: frame.h renamed objtool.h 2020-11-02 22:01:10 +00:00
hkdf.h Encryption patch follow-up 2017-10-11 16:54:48 -04:00
metaslab.h Selectable block allocators 2023-09-01 18:00:30 -07:00
metaslab_impl.h Reduce number of metaslab preload taskq threads. 2023-10-06 09:04:00 -07:00
mmp.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
mntent.h Expose ZFS dataset case sensitivity setting via sb_opts 2022-07-14 10:38:16 -07:00
mod.h linux: module: weld all but spl.ko into zfs.ko 2022-04-20 13:28:24 -07:00
multilist.h Re-embed multilist_t storage 2021-06-10 10:42:31 -06:00
nvpair.h nvpair: Use flexible array member for nvpair name strings 2023-03-14 15:25:55 -07:00
nvpair_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
objlist.h Implement Redacted Send/Receive 2019-06-19 09:48:12 -07:00
pathname.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
qat.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
range_tree.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
rrwlock.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sa.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sa_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sha2.h Add generic implementation handling and SHA2 impl 2023-03-02 13:52:21 -08:00
skein.h OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R 2016-10-03 14:51:15 -07:00
spa.h Selectable block allocators 2023-09-01 18:00:30 -07:00
spa_checkpoint.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_checksum.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_impl.h Reduce number of metaslab preload taskq threads. 2023-10-06 09:04:00 -07:00
spa_log_spacemap.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
space_map.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
space_reftree.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
sysevent.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
txg.h Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
txg_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
u8_textprep.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
u8_textprep_data.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uberblock.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uberblock_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uio_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
unique.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
uuid.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev.h Another set of vdev queue optimizations. 2023-06-27 09:09:48 -07:00
vdev_disk.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_draid.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_file.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_impl.h Remove fastwrite mechanism. 2023-07-28 13:30:33 -07:00
vdev_indirect_births.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_indirect_mapping.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
vdev_initialize.h Add the ability to uninitialize 2023-05-18 10:02:20 -07:00
vdev_raidz.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_raidz_impl.h Cleanup Raid-Z Typo fixes 2022-09-06 09:43:21 -07:00
vdev_rebuild.h Do not report bytes skipped by scan as issued. 2023-06-30 08:47:13 -07:00
vdev_removal.h Cleanup: Specify unsignedness on things that should not be signed 2022-09-27 16:42:41 -07:00
vdev_trim.h Fix short-lived txg caused by autotrim 2023-03-28 08:43:41 -07:00
xvattr.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zap.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zap_impl.h Optimize microzaps 2022-10-20 11:57:15 -07:00
zap_leaf.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zcp.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
zcp_global.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_iter.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zcp_prop.h OpenZFS 7431 - ZFS Channel Programs 2018-02-08 15:28:18 -08:00
zcp_set.h Support setting user properties in a channel program 2020-02-14 13:41:42 -08:00
zfeature.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_acl.h Linux 6.3 compat: idmapped mount API changes 2023-04-10 14:15:36 -07:00
zfs_bootenv.h zfs label bootenv should store data as nvlist 2020-09-15 15:42:27 -07:00
zfs_chksum.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_context.h Introduce kmem_scnprintf() 2022-10-29 13:05:11 -07:00
zfs_debug.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
zfs_delay.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_file.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_fuid.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_impl.h Add generic implementation handling and SHA2 impl 2023-03-02 13:52:21 -08:00
zfs_ioctl.h DMU_BACKUP_FEATURE: indicate that bit 28 and 29 are reserved 2022-09-27 16:55:32 -07:00
zfs_ioctl_impl.h Cleanup: 64-bit kernel module parameters should use fixed width types 2022-10-13 10:03:29 -07:00
zfs_onexit.h zfs_onexit_add_cb: make action_handle point to a uintptr_t 2022-11-03 09:52:12 -07:00
zfs_project.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_quota.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_racct.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ratelimit.h Change checksum & IO delay ratelimit values 2018-03-04 17:34:51 -08:00
zfs_refcount.h Switch refcount tracking from lists to AVL-trees. 2023-06-14 08:02:27 -07:00
zfs_rlock.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_sa.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_stat.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_sysfs.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_vfsops.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_vnops.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
zfs_znode.h znode: expose zfs_get_zplprop to libzpool 2023-06-05 11:53:44 -07:00
zil.h zil: Add some more statistics. 2023-05-25 13:51:53 -07:00
zil_impl.h ZIL: Second attempt to reduce scope of zl_issuer_lock. 2023-08-24 17:08:49 -07:00
zio.h Remove fastwrite mechanism. 2023-07-28 13:30:33 -07:00
zio_checksum.h Don't emit cksum_{actual_expected} in ereport.fs.zfs.checksum events 2023-07-21 11:49:26 -07:00
zio_compress.h Skip memory allocation when compressing holes 2023-02-27 14:41:02 -08:00
zio_crypt.h Enable -Wwrite-strings 2022-06-29 14:08:54 -07:00
zio_impl.h Implementation of block cloning for ZFS 2023-03-10 11:59:53 -08:00
zio_priority.h Add device rebuild feature 2020-07-03 11:05:50 -07:00
zrlock.h Pack zrlock_t by 8 bytes 2023-01-05 09:31:55 -08:00
zthr.h Avoid memory allocations in the ARC eviction thread 2022-01-21 10:28:13 -08:00
zvol.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zvol_impl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00