gallery : 2001Aug10-M5 5portola-Menlo png

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These graphs are snapshots of the MRTG graphs of web server activity on the USGS Pasadena Office web server. In each case, the activity is the traffic seen by the Squid reverse-proxy server that acts as a front-end for the main web server. The Squid server acts as an accelerator for the site. The story of how this configuration came about is told in "Web Servers, Earthquakes, and the Slashdot Effect". The blue line is the total HTTP requests/min. the green is the number of requests that were served out of the Squid cache. The brown line is the cache hit ratio.

2001Aug10-M5 5portola png

sts-sonic-24Oct2000 png
2001Aug10-M5 5portola-Menlo png
M5.5 near Portola, CA. Traffic on the Menlo Park server. Note that the scale here is in requests per second. August 10, 2001

2001Aug10-M5 5portola png

sts-sonic-24Oct2000 png
Generated by album from MarginalHacks on Fri Aug 17 16:10:31 2001