[lustre-discuss] lnet peer credits

[Thomas Roth]

Hi all,

is there a kind of a rule of thumb for the "min" number in /proc/sys/lnet/peers?

Our ko2iblnd peer_credits-Parameter is at the default value, obviously 8.

When I look up /proc/sys/lnet/peers (on an OSS), I typically get something like


10.20.1.76 at o2ib1            1    NA    -1     8     8     8     8   -18 0
10.20.0.188 at o2ib1           1    NA    -1     8     8     8     8   -29 0
10.20.0.44 at o2ib1            2    NA    -1     8     8     8     7   -15 72
10.20.1.165 at o2ib1           1    NA    -1     8     8     8     8   -18 0
10.20.1.21 at o2ib1            1    NA    -1     8     8     8     8 -2113 0
10.20.0.133 at o2ib1           1    NA    -1     8     8     8     8   -28 0
10.20.1.110 at o2ib1           1    NA    -1     8     8     8     8   -10 0
10.20.0.222 at o2ib1           1    NA    -1     8     8     8     8   -20 0
10.20.0.78 at o2ib1            1    NA    -1     8     8     8     8   -17 0
10.20.1.55 at o2ib1            1    NA    -1     8     8     8     8    -7 0
10.20.0.167 at o2ib1           1    NA    -1     8     8     8     8   -12 0
10.20.1.144 at o2ib1           1    NA    -1     8     8     8     8    -8 0
10.20.1.89 at o2ib1            1    NA    -1     8     8     8     8   -21 0
10.20.1.34 at o2ib1            1    NA    -1     8     8     8     8   -11 0
10.20.0.146 at o2ib1           1    NA    -1     8     8     8     8   -21 0
10.20.0.2 at o2ib1             1    NA    -1     8     8     8     8  -584 0
10.20.1.123 at o2ib1           1    NA    -1     8     8     8     8   -16 0
10.20.0.91 at o2ib1            1    NA    -1     8     8     8     8   -25 0
10.20.1.68 at o2ib1            1    NA    -1     8     8     8     8     1 0
10.20.0.180 at o2ib1           1    NA    -1     8     8     8     8   -22 0
10.20.0.185 at o2ib1           1    NA    -1     8     8     8     8   -17 0
10.20.0.41 at o2ib1            1    NA    -1     8     8     8     8   -25 0
10.20.1.162 at o2ib1           1    NA    -1     8     8     8     8   -14 0
10.20.1.18 at o2ib1            1    NA    -1     8     8     8     8  -919 0
10.20.0.130 at o2ib1           1    NA    -1     8     8     8     8   -13 0
10.20.1.107 at o2ib1           1    NA    -1     8     8     8     8    -7 0
10.20.0.219 at o2ib1           1    NA    -1     8     8     8     8   -12 0
10.20.0.75 at o2ib1            1    NA    -1     8     8     8     8   -21 0
10.20.1.196 at o2ib1           4    up    -1     8     8     8     8  -419 0


(The last line, the only peer that is "up", is an LNET-router)


Something to worry about?

Cheers,
Thomas


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Thomas Roth
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