Just a thought - some network cards auto-negociate between 10 Mbit and 100 Mbit and this can cause the net data rate to be closer to 10 Mbit, even when both ends are capable of 100. We have found that it is better to set some to 100 Mbit manually, rather than letting the card and router negociate it.
Cheers Chris ____________________________________________________________________ Chris Osland Office tel: +44 (0) 1235 446565 Digital Media and Access Grid Medialab tel: +44 (0) 1235 446459 BIT Department Access Grid room tel: +44 (0) 1235 445666 e-mail: c.d.osl...@rl.ac.uk Fax: +44 (0) 1235 445597 CCLRC Rutherford Appleton Laboratory (Bldg. R18) Chilton, DIDCOT, Oxon OX11 0QX, UK [The contents of this email are confidential and are for the use of the intended recipient only. If you are not the intended recipient do not take any action on it or show it to anyone else, but return this email to the sender and delete your copy of it.] -----Original Message----- From: Natalia Costas Lago [mailto:nata...@cesga.es] Sent: 21 February 2005 15:56 To: Osland, CD (Chris) Cc: ag-tech Subject: Re: [AG-TECH] VIC performance CPU is usually between 20 and 50% (VIC 1.1.3 always display around 20%.. and VIC 1.1.5 displays around 50% CPU usage).. I doesnt look like a resources issue to me... ----- Original Message ----- From: Osland, CD (Chris)<mailto:c.d.osl...@rl.ac.uk> To: Natalia Costas Lago<mailto:nata...@cesga.es> ; ag-tech<mailto:ag-t...@mcs.anl.gov> Sent: Monday, February 21, 2005 4:48 PM Subject: RE: [AG-TECH] VIC performance To me that would indicate that the processor, memory and graphics card are NOT the problem. Cheers Chris ____________________________________________________________________ Chris Osland Office tel: +44 (0) 1235 446565 Digital Media and Access Grid Medialab tel: +44 (0) 1235 446459 BIT Department Access Grid room tel: +44 (0) 1235 445666 e-mail: c.d.osl...@rl.ac.uk Fax: +44 (0) 1235 445597 CCLRC Rutherford Appleton Laboratory (Bldg. R18) Chilton, DIDCOT, Oxon OX11 0QX, UK [The contents of this email are confidential and are for the use of the intended recipient only. If you are not the intended recipient do not take any action on it or show it to anyone else, but return this email to the sender and delete your copy of it.] -----Original Message----- From: owner-ag-t...@mcs.anl.gov [mailto:owner-ag-t...@mcs.anl.gov]On Behalf Of Natalia Costas Lago Sent: 21 February 2005 15:34 To: ag-tech Subject: Fw: [AG-TECH] VIC performance forgot to cc the list :))) ----- Original Message ----- From: Natalia Costas Lago<mailto:nata...@cesga.es> To: Robert Olson<mailto:ol...@mcs.anl.gov> Sent: Monday, February 21, 2005 4:33 PM Subject: Re: [AG-TECH] VIC performance The machine is dual P4 3Ghz with 2 GB of RAM. The videostreams are 24 fps when displayed on the TFT but, when moved to the screen the frames per second lowers. The videocard is an Nvidia Quadro NVS. Other node in Portugal appreciated the same effect. We welcome any node to test this at https://accessgrid.cesga.es:8000/Venues/default. I am restarting my node, so I will need some time to join again. Kind regards, Natalia. ----- Original Message ----- From: Robert Olson<mailto:ol...@mcs.anl.gov> To: Natalia Costas Lago<mailto:nata...@cesga.es> Cc: ag-tech<mailto:ag-t...@mcs.anl.gov> Sent: Monday, February 21, 2005 4:23 PM Subject: Re: [AG-TECH] VIC performance One way to tell what is going on is to mute all of the video streams. when muted, all vic is doing is parsing the packet streams, and not decoding the h261 (as I recall anyway). It is definitely not rendering them. If you still see frame loss with streams muted, it is most likely the network at fault. You can also bring up the CPU monitor; if you are seeing 100% CPU with the video streams being displayed, that's a clue that the computer is not keeping up. --bob On Feb 21, 2005, at 8:45 AM, Natalia Costas Lago wrote: Hi everybody, I have quite a huge problem. VIC is performing in a strange way, I have 13 windows on my display and each videostream has been reduced its fps rate. It seems like VIC discarded frames due to performance issues or something like that. Any help about this will be greatly appreciated. Kind regards, Natalia.
