Hello all. I am a system engineer working for Japan IBM and quite a newbie for Ganglia. I have installed RPM image (ganglia-gmond-3.0.7-1.aix5.1.ppc.rpm ) from Dr M. Perzl's site (http://www.perzl.org/ganglia) on IBM p5 p510 running with AIX 5.3 (5300-08-04)
However I found the report of bytes_in and bytes_out from Ganglia does not match with the reality. The followings are showing result from iperf, Ganglia and NMON for a case where I executed iperf client for 300 seconds on a different machine. iperf and NMON show the similar results which are around 120MB/s, however, the result from Ganglia shows much slower performance, which is around 14MB/s. Could anybody suggest me what I am missing or how I can solve the problem? [Iperf Result] bash-2.05b$ date; time /usr/bin/iperf -c XXXXX -t 300 -p 2000 ;date Fri Aug 21 17:55:00 JST 2009 ------------------------------------------------------------ Client connecting to hpsscws1, TCP port 2000 TCP window size: 16.0 KByte (default) ------------------------------------------------------------ [ 3] local XXX.XXX.XXX.XXX port 59968 connected with XXX.XXX.XXX.XXX port 2000 [ ID] Interval Transfer Bandwidth [ 3] 0.0-300.0 sec 33.1 GBytes 948 Mbits/sec real 5m0.855s user 0m1.960s sys 0m30.160s Fri Aug 21 18:00:01 JST 2009 [Ganglia Result] (See attached file: ganglia-network-hpcws1-090821-1800.PNG) [Nmon Result] (See attached file: nmon-result-090821-test.txt) With my best regards. Yasushi Fujimoto System Server Services#3, Systems Services#2 Infrastructure Management Services Delivery, Integrated Technology Service Delivery, Global Technology Services, IBM Japan, Ltd.
ganglia-network-hpcws1-090821-1800.PNG
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nmon-result-090821-test.txt
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