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In pursuit of improving performance on multi-core systems, we should implements fanned out counters and use them to improve the performance of some of the arc statistics. These stats are updated extremely frequently, and can consume a significant amount of CPU time. Authored by: Paul Dagnelie <pcd@delphix.com> Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Approved by: Dan McDonald <danmcd@joyent.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Ported-by: Paul Dagnelie <pcd@delphix.com> OpenZFS-issue: https://www.illumos.org/issues/8484 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/7028a8b92b7 Issue #3752 Closes #7462
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20 lines
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Plaintext
Copyright (c) 2011 Google, Inc.
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