Alexander Motin c4c162c1e8 Use wmsum for arc, abd, dbuf and zfetch statistics. (#12172) ... wmsum was designed exactly for cases like these with many updates and rare reads. It allows to completely avoid atomic operations on congested global variables. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Mark Maybee <mark.maybee@delphix.com> Signed-off-by: Alexander Motin <mav@FreeBSD.org> Sponsored-By: iXsystems, Inc. Closes #12172		2021-06-16 18:19:34 -06:00
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freebsd	Use wmsum for arc, abd, dbuf and zfetch statistics. (#12172)	2021-06-16 18:19:34 -06:00
linux	Use wmsum for arc, abd, dbuf and zfetch statistics. (#12172)	2021-06-16 18:19:34 -06:00