mirror_zfs/module
Brian Atkinson 187f931372
Update ABD stats for linear page Linux
a10e552 updated abd_free_linear_page() to no longer call
abd_update_scatter_stat(). This meant that linear pages that were not
attached to Direct I/O requests were not doing waste accounting for the
ARC. This led to performance issues due to incorrect ARC accounting that
resulted in 100% of CPU time being spent in arc_evict() during prolonged
I/O workloads with the ARC.

The call to abd_update_scatter_stats() is now conditionally called in
abd_free_linear_page() when the ABD is not from a Direct I/O request.

Reviewed-by: Mark Maybee <mmaybee@delphix.com>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Brian Atkinson <batkinson@lanl.gov>
Closes #16729
2024-11-07 11:11:05 -08:00
..
avl Suppress Clang Static Analyzer false positive in the AVL tree code. 2023-03-08 13:51:21 -08:00
icp icp: remove redundant FreeBSD check 2024-05-31 15:13:59 -07:00
lua lua: add flex array field to TString type 2024-09-30 10:30:03 -07:00
nvpair xdr: header cleanup 2024-04-03 15:13:27 -07:00
os Update ABD stats for linear page Linux 2024-11-07 11:11:05 -08:00
unicode module: unicode: remove unused tolower transformations 2024-11-04 17:26:35 -08:00
zcommon Always validate checksums for Direct I/O reads 2024-10-09 12:28:08 -07:00
zfs ZFS send should use spill block prefetched from send_reader_thread 2024-11-06 11:52:01 -08:00
zstd compress: change zio_compress API to use ABDs 2024-08-22 16:22:24 -07:00
.gitignore FreeBSD: Ignore symlink to i386 includes 2022-08-02 16:34:23 -07:00
Kbuild.in module: unicode: remove unused uconv.c 2024-11-01 12:12:13 -07:00
Makefile.bsd module: unicode: remove unused uconv.c 2024-11-01 12:12:13 -07:00
Makefile.in check-zstd-symbols: also ignore __pfx_ symbols 2023-09-18 09:08:41 -07:00