On Wed, 2003-10-01 at 14:07, Ed Tomlinson wrote: > On October 01, 2003 07:57 am, Toad wrote: > > On Wed, Oct 01, 2003 at 07:44:35AM -0400, Ed Tomlinson wrote: > > > Hi, > > > > > > I have noticed something funny in the ocm stats. My box with a node > > > up 14 hours (6214) has 242 connections transmitting data and has > > > 324M of data queued on them. My output bandwidth is limited to > > > 10k/s. The servlet/nodeinfo/performance/general tells me I am > > > using about 8k/s. So either the ocm lies about what is queued OR > > > most of those connections are stalled... It may well be a stalling > > > problem - if I limit the send queue size to a couple of mins of > > > traffic (by QRing) servlet/nodeinfo/performance/general shows > > > dropping bandwidth over time.
My output bandwidth is supposed to be limited to 5.4k/s, but actual measurement at my firewall shows 12k/s. When freenet is off, the measurement is about 0.5k/s. With latest CVS. This is ADSL. The maximum observed rate over a minute occured on Sep 1, 17k/s. More typical peak values are 15k/s. To measure, I run this in an emacs shell window and save the file: while true; do echo $(date; grep eth0 /proc/net/dev); sleep 60; done For the servlet claim, I used data from this line "Current upstream bandwidth usage 3284 bytes/second (60%)": Over the last 20 hours, the servlet claim averaged 3404 bytes/sec (over 21 samples), i.e. about 244,880,000 bytes. The actual output was 11559 bytes/sec over 20 hours, i.e. about 832,248,000 bytes. When bandwidth limiting was "working", the actual output was averaging around 7k/sec. I chose 5.4k/s to achieve around the desired 6-8k/sec. The last sample from the servlet says "Data waiting to be transmitted/received 79 MiB/2,940 KiB". netstat shows 13 connections with persistent input queues, and 9 with persistent output queues. -- Ed Huff
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