Gentoo Archives: gentoo-amd64

From: "P.V.Anthony" <pvantony@×××××××××××.sg>
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] NFS on freebsd
Date: Sun, 08 Jan 2006 17:18:23
Message-Id: 43C148FE.3080000@singnet.com.sg
In Reply to: Re: [gentoo-amd64] NFS on freebsd by "P.V.Anthony"
1 P.V.Anthony wrote:
2
3 > Test on the ethernet connection.
4 > # nttcp -T 10.0.0.100
5 > Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s
6 > CPU-C/s
7 > l 8388608 0.09 0.02 788.3382 2918.2842 2048 24058.17
8 > 89059.0
9 > 1 8388608 0.09 0.08 776.0673 838.8084 2195 25383.65
10 > 27435.8
11 >
12 > another test done a second later.
13 > # nttcp -T 10.0.0.100
14 > Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s
15 > CPU-C/s
16 > l 8388608 0.50 0.05 134.7476 1369.7643 2048 4112.17
17 > 41801.9
18 > 1 8388608 0.52 0.07 129.5928 986.8370 3355 6478.79
19 > 49335.3
20 >
21 > It looks like my network speed is like a bell curve. Going up steady to
22 > about 700MBit then slowing coming down to 129MBit. Then it starts to go
23 > up then down again.
24 >
25 > Could be my network. Need to do more checking.
26
27 I just did some more test but with a larger transfer of data and it looks that
28 the ethernet connection is good. So the NFS is still the problem.
29
30 Please comment or suggest.
31
32 Below is the test results.
33
34 # nttcp -T -l 8192 -n 126976 10.0.0.100
35 Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s
36 l1040187392 10.83 3.09 768.5979 2691.7081 126976 11727.87 41072.2
37 11040187392 10.83 10.08 768.5150 825.1665 130661 12066.93 12956.4
38
39 Reverse direction.
40 # nttcp -T -r -l 8192 -n 126976 10.0.0.100
41 Bytes Real s CPU s Real-MBit/s CPU-MBit/s Calls Real-C/s CPU-C/s
42 l1040187392 12.81 1.83 649.8250 4550.4427 153953 12022.17 84186.1
43 11040187392 12.82 0.62 649.0540 13508.1158 126976 9903.78 206117.5
44
45 P.V.Anthony
46
47 --
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