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Re-embed multilist_t storage

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This commit partially reverts changes to multilists in PR 7968
(multi-threaded spa-sync()) and adds some cache line alignments to
separate read-only multilists and heavily modified refcount's to different
cache lines.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-by: iXsystems, Inc.
Closes #12158
This commit is contained in:
Alexander Motin
2021-06-10 12:42:31 -04:00
committed by GitHub
parent eec5ba113e
commit ffdf019cb3
12 changed files with 99 additions and 104 deletions
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include/sys/metaslab_impl.h
+1 -1
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@@ -206,7 +206,7 @@ struct metaslab_class {
* List of all loaded metaslabs in the class, sorted in order of most
* recent use.
*/
multilist_t *mc_metaslab_txg_list;
multilist_t mc_metaslab_txg_list;
metaslab_class_allocator_t mc_allocator[];
};