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List:       freebsd-hackers
Subject:    vmstat -z on FreeBSD11.1S prior to a move to 12
From:       Dewayne Geraghty <dewayne.geraghty () heuristicsystems ! com ! au>
Date:       2019-04-06 8:20:28
Message-ID: 9b7a4cf2-4193-21a0-8680-7ee5b6893e40 () heuristicsystems ! com ! au
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I'm trying to understand if there is anything that I should do regarding
the FAILs froma vmstat -z result

ITEM                   SIZE  LIMIT     USED     FREE      REQ FAIL SLEEP
UMA Hash:               256,      0
,       5,      10,      13,   0,   0
4 Bucket:                32,      0,     113,   13637,56567851,1016721,   0
6 Bucket:                48,      0,      38,   10420, 5813437,1644722,   0
8 Bucket:                64,      0,     588,   10076,15183107,48522,   0
12 Bucket:               96,      0,     110,    1858, 4103705,87972,   0
16 Bucket:              128,      0,     835,    1583, 6158208,   1,   0
32 Bucket:              256,      0,     574,    2051,12819286,  10,   0
64 Bucket:              512,      0,   14016,    6008,13042857,4594231,   0
128 Bucket:            1024,      0,    1081,    7455,10754938,512246,   0
256 Bucket:            2048,      0,    1669,    2749, 2393011,1381094,   0
vmem btag:               56,      0,   65907,   49752, 5035839, 872,   0

I noticed the FreeBSD12 GENERIC kernel has an option regarding NUMA and
thought I should understand the impact to my systems and how I can
monitor the system for deviation (good or bad).  (Its been a very long
time since I've asked for help, but this isn't covered in my FreeBSD
Design book - yes, paper! ;)
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