Comments on: Infrastructure load for December 2009 http://oduinn.com/blog/2010/01/16/infrastructure-load-for-december-2009/ Just another WordPress weblog Tue, 24 Aug 2010 20:19:57 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Tony Mechelynck http://oduinn.com/blog/2010/01/16/infrastructure-load-for-december-2009/#comment-42931 Tony Mechelynck Sun, 17 Jan 2010 09:21:08 +0000 http://oduinn.com/2010/01/16/infrastructure-load-for-december-2009/#comment-42931 In the analyses "per day of month", I notice that around days 5-6, 12-13, 19-20, 26-27 are there are "slacks" lower than on surrounding days, a periodicity of period 7. I guess it might be useful to have a "day of week" line added. -- A look at last year's calendar shows that these were Saturdays and Sundays; in addition, the gap starts early and last longer around Christmas. Not really a news-breaking discovery of course. What is more surprising is the relatively high activity (for a weekend) on the second weekend (12-13): was there a "software release" at or just after that date? In fact, the fortnight from Tuesday 8 to Friday 18 almost looks like a double week with no weekend break in the middle. The last graph (by time of day) is labeled according to "Mountain View clocks" I suppose, i.e., add 3 for Massachusetts universities, 8 for Britain (and Ireland and Portugal), 9 for most of continental Europe (from Spain to Poland), etc. Not sure what can be deduced from it without additional knowledge about e.g. how much devs "do" or "don't" work on Mozilla as part of their paid jobs or student curricula (and therefore do it "during" or "after" office hours, respectively) in which time zones etc. In the analyses “per day of month”, I notice that around days 5-6, 12-13, 19-20, 26-27 are there are “slacks” lower than on surrounding days, a periodicity of period 7. I guess it might be useful to have a “day of week” line added. — A look at last year’s calendar shows that these were Saturdays and Sundays; in addition, the gap starts early and last longer around Christmas. Not really a news-breaking discovery of course. What is more surprising is the relatively high activity (for a weekend) on the second weekend (12-13): was there a “software release” at or just after that date? In fact, the fortnight from Tuesday 8 to Friday 18 almost looks like a double week with no weekend break in the middle.

The last graph (by time of day) is labeled according to “Mountain View clocks” I suppose, i.e., add 3 for Massachusetts universities, 8 for Britain (and Ireland and Portugal), 9 for most of continental Europe (from Spain to Poland), etc. Not sure what can be deduced from it without additional knowledge about e.g. how much devs “do” or “don’t” work on Mozilla as part of their paid jobs or student curricula (and therefore do it “during” or “after” office hours, respectively) in which time zones etc.

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