[tex-live] more on bandwidth from ftp.math.utah.edu and www.math.utah.edu

Nelson H. F. Beebe beebe at math.utah.edu
Thu May 12 21:39:41 CEST 2016

I've just updated some performance plots and dropped them at


They show 5.4 years of traffic outbound from those two hosts.

Our current connections are:

	machine-room servers to building switch:	 1Gb/s
	building switch to campus backbone:		10Gb/s
	UofUtah campus backbone to Internet:		40Gb/s

The bottleneck in our building cannot be resolved until a major
hardware upgrade of the central fileserver, possibly this summer.

Still, 1Gb/s is about 100MB/s, or 360GB/hr, or 8640GB/day, as a
maximum possible, whereas our peak outbound FTP is rarely 500GB/day,
and usually about 300GB/day.

What we don't yet have is minute-by-minute network bandwidth reports;
I'm looking into whether data are available to produce them.

- Nelson H. F. Beebe                    Tel: +1 801 581 5254                  -
- University of Utah                    FAX: +1 801 581 4148                  -
- Department of Mathematics, 110 LCB    Internet e-mail: beebe at math.utah.edu  -
- 155 S 1400 E RM 233                       beebe at acm.org  beebe at computer.org -
- Salt Lake City, UT 84112-0090, USA    URL: http://www.math.utah.edu/~beebe/ -

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