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тАО04-14-2004 01:35 AM
тАО04-14-2004 01:35 AM
Re: MSCP performance.
Uwe - DTSEND - somehow, I'm totally unfamiliar with this diagnostic!! I'll check into it. What protocol is it actually using to do tests? Decnet?
Regarding setting MSCP_BUFFER on the Alpha's AND the VAX's, does this setting come into play on the VAX side? The VAX's are not (actively) serving any disk, the only local storage is the system disk and a page/swap disk.
Network topology - I'm using CentreCom twisted pair transceivers on the AUI ports of the 4000-105A's which are connected into an HP switch (the network folks say they have locked the ports at 10-Half). A Gig fiber uplink to a switch, down another Gig fiber link to another HP switch to the Alpha's running 100-Full. I wanted to get the VAX's onto the same switch as the Alpha's but there's a lack of free ports currently. There's a SQE test switch on the transceivers that is in the wrong position which is why I see Collision Detect Check failures. In the past this has never really been a "problem", just a max'ed counter.
Anyways, thanks again...I hope to be able to reboot the Alpha's this weekend for new MSCP sysgen settings, hopefully also get the VAX's over to the other switch.
Cheers,
Art
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тАО04-14-2004 02:39 AM
тАО04-14-2004 02:39 AM
Re: MSCP performance.
It is handy to serve your local disks on the VAXen so other nodes can have access to them. Makes it more convenient so you don't have to login to that node, or alternatively, use sysman, etc. I happen to prefer setting up my systems this way.
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тАО04-14-2004 02:43 AM
тАО04-14-2004 02:43 AM
Re: MSCP performance.
See
http://h71000.www7.hp.com/doc/73final/documentation/pdf/DECNET_OVMS_NET_UTIL.PDF
chapter 4
Purely Personal Opinion
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тАО04-14-2004 04:12 AM
тАО04-14-2004 04:12 AM
Re: MSCP performance.
yes it uses DECnet. I forgot to mention the /SIZE qualifier. It is a nice way to put load onto a link and test the throughput without being limited by the speed of some underlying disks or tapes.
Ian, thank you for providing a pointer.
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тАО04-14-2004 04:19 AM
тАО04-14-2004 04:19 AM
Re: MSCP performance.
I ran it against the node doing the MSCP serving:
_Test: data/print/stat/seconds=10/node=xxxxxx/size=512/type=seq
%NET-S-NORMAL, normal successful completion
Test Parameters:
Test duration (sec) 10
Target node "xxxxxx"
Line speed (baud) 1000000
Message size (bytes) 512
Summary statistics:
Total messages XMIT 14071 RECV 0
Total bytes XMIT 7204352
Messages per second 1407.10
Bytes per second 720435
Line thruput (baud) 5763480
%Line Utilization 576.348
I wish I could utilize my paycheque at 576% !!
Art
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тАО04-14-2004 04:26 AM
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тАО04-14-2004 04:28 AM
тАО04-14-2004 04:28 AM
Re: MSCP performance.
_Test: data/print/stat/seconds=10/node=xxxxxx/size=512/type=seq/speed=10000000
%NET-S-NORMAL, normal successful completion
Test Parameters:
Test duration (sec) 10
Target node "xxxxxx"
Line speed (baud) 10000000
Message size (bytes) 512
Summary statistics:
Total messages XMIT 17134 RECV 0
Total bytes XMIT 8772608
Messages per second 1713.40
Bytes per second 877260
Line thruput (baud) 7018080
%Line Utilization 70.181
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тАО04-14-2004 04:33 AM
тАО04-14-2004 04:33 AM
Re: MSCP performance.
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тАО04-14-2004 04:39 AM
тАО04-14-2004 04:39 AM
Re: MSCP performance.
%NET-S-NORMAL, normal successful completion
Test Parameters:
Test duration (sec) 10
Target node "yyyyyy"
Line speed (baud) 100000000
Message size (bytes) 512
Summary statistics:
Total messages XMIT 17957 RECV 0
Total bytes XMIT 9193984
Messages per second 1795.70
Bytes per second 919398
Line thruput (baud) 7355184
%Line Utilization 7.355
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тАО04-14-2004 04:43 AM
тАО04-14-2004 04:43 AM