Explain the new fields in top(1) related to ZFS compressed ARC
Reviewed by: bcr X-MFC-with: 316314 Differential Revision: https://reviews.freebsd.org/D10781
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=318448
@ -2,9 +2,10 @@
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.SH "FreeBSD NOTES"
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.SH DESCRIPTION OF MEMORY
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Mem: 9220K Active, 1M Inact, 1M Laundry, 3284K Wired, 2M Buf, 932K Free
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ARC: 2048K Total, 342K MRU, 760K MFU, 272K Anon, 96K Header, 442K Other
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Swap: 91M Total, 79M Free, 13% Inuse, 80K In, 104K Out
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Mem: 61M Active, 86M Inact, 368K Laundry, 22G Wired, 102G Free
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ARC: 15G Total, 9303M MFU, 6155M MRU, 1464K Anon, 98M Header, 35M Other
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15G Compressed, 27G Uncompressed, 1.75:1 Ratio, 174M Overhead
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Swap: 4096M Total, 532M Free, 13% Inuse, 80K In, 104K Out
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.TP
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.B K:
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Kilobyte
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@ -54,8 +55,20 @@ number of ARC bytes holding in flight data
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.B Header:
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number of ARC bytes holding headers
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.TP
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.B Other
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.B Other:
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miscellaneous ARC bytes
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.TP
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.B Compressed:
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bytes of memory used by ARC caches
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.TP
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.B Uncompressed:
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bytes of data stored in ARC caches before compression
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.TP
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.B Ratio:
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ratio of uncompressed data to total ARC size
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.TP
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.B Overhead:
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amount of overhead from ARC compression
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.SS Swap Stats
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.TP
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.B Total:
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