[Gluster-users] Storage really slow on k8s

[Gionatan Danti]

Il 2020-03-18 18:41 Rene Bon Ciric ha scritto:
> [ ID] Interval           Transfer     Bandwidth       Retr  Cwnd
> [  4]   0.00-1.00   sec  1.02 GBytes  8.77 Gbits/sec  1459   3.15 
> MBytes
> [  4]   1.00-2.00   sec  1022 MBytes  8.58 Gbits/sec  2284   3.15 
> MBytes
> [  4]   2.00-3.00   sec  1005 MBytes  8.43 Gbits/sec  2230   3.15 
> MBytes
> [  4]   3.00-4.00   sec   982 MBytes  8.24 Gbits/sec  2334   2.38 
> MBytes
> [  4]   4.00-5.00   sec   988 MBytes  8.29 Gbits/sec  668   2.65 MBytes
> [  4]   5.00-6.00   sec   983 MBytes  8.25 Gbits/sec  1370   2.86 
> MBytes
> [  4]   6.00-7.00   sec  1010 MBytes  8.47 Gbits/sec  1017   2.12 
> MBytes
> [  4]   7.00-8.00   sec   995 MBytes  8.35 Gbits/sec  2220   1.27 
> MBytes
> [  4]   8.00-9.00   sec   923 MBytes  7.75 Gbits/sec  324   1.64 MBytes
> [  4]   9.00-10.00  sec  1001 MBytes  8.40 Gbits/sec  532   1.96 MBytes

I can see that you have many packet retransmission. From my (limited) 
experience, they drastically affect IOPs, sometime bringing them to 0 
(zero) for some seconds.

-- 
Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it [1]
email: g.danti at assyoma.it - info at assyoma.it
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