mirror_zfs/module
Allan Jude 8e9ffe1b4f ARC: parallel eviction
On systems with enormous amounts of memory, the single arc_evict thread
can become a bottleneck if reads and writes are stuck behind it, waiting
for old data to be evicted before new data can take its place.

This commit adds support for evicting from multiple ARC lists in
parallel, by farming the evict work out to some number of threads and
then accumulating their results.

A new tuneable, zfs_arc_evict_threads, sets the number of threads. By
default, it will scale based on the number of CPUs.

Sponsored-by: Expensify, Inc.
Sponsored-by: Klara, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Youzhong Yang <youzhong@gmail.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Signed-off-by: Alexander Stetsenko <alex.stetsenko@klarasystems.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Co-authored-by: Rob Norris <rob.norris@klarasystems.com>
Co-authored-by: Mateusz Piotrowski <mateusz.piotrowski@klarasystems.com>
Co-authored-by: Alexander Stetsenko <alex.stetsenko@klarasystems.com>
Closes #16486
2025-06-17 10:50:26 -07:00
..
avl SPDX: license tags: CDDL-1.0 2025-04-16 09:59:44 -07:00
icp Linux build: silence objtool warnings 2025-06-17 10:50:26 -07:00
lua SPDX: license tags: MIT 2025-04-16 09:59:44 -07:00
nvpair SPDX: license tags: CDDL-1.0 2025-04-16 09:59:44 -07:00
os FreeBSD: zfs_putpages: don't undirty pages until after write completes 2025-06-17 10:50:26 -07:00
unicode [2.3.2] uconv: add SPDX license tag 2025-04-16 09:59:45 -07:00
zcommon GCC 15: Fix unterminated-string-initialization (#17244) 2025-04-16 09:59:45 -07:00
zfs ARC: parallel eviction 2025-06-17 10:50:26 -07:00
zstd SPDX: license tags: BSD-3-Clause OR GPL-2.0-only 2025-04-16 09:59:44 -07:00
.gitignore FreeBSD: Ignore symlink to i386 includes 2022-08-02 16:34:23 -07:00
Kbuild.in Linux build: always use objtool 2025-06-17 10:50:26 -07:00
Makefile.bsd freebsd: unbreak module/Makefile.bsd build on 15-CURRENT-arm64 2025-04-16 09:59:45 -07:00
Makefile.in Fix "make install" with DESTDIR set (#16995) 2025-02-28 00:42:29 +05:00