I''m not sure if shorewall can help here or not, but I''m running into situations where sometimes when multiple downloads are active (different internal hosts and different external hosts), one download will take over near all of the available bandwidth and the other will craw along. I''ve generally assumed that this is because one of the remote sources has much higher bandwidth and/or lower latency and it beats out the other. Is this the case? Unfortunately I seem to be encountering this situation more frequently. Is there anything I can do in shorewall to mitigate this? Thanks! -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion@cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev
Orion Poplawski wrote:> Is there anything I can do in shorewall to mitigate this?Not tht I''m aware of. -Tom -- Tom Eastep \ When I die, I want to go like my Grandfather who Shoreline, \ died peacefully in his sleep. Not screaming like Washington, USA \ all of the passengers in his car http://shorewall.net \________________________________________________ ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev
On 04/03/2010 08:28 PM, Tom Eastep wrote:> Orion Poplawski wrote: >> Is there anything I can do in shorewall to mitigate this? > > Not tht I''m aware of. >It appears that a large part of my problem was that I was over-estimating my bandwidth and allowing transfers a ceiling of 100%. Backing off the bandwidth a bit and lowering the ceiling about 5% made a big difference. -- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion@cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev