----- Original Message ----- From: "Kashif Qazi" <[email protected]> To: <[email protected]> Sent: Friday, February 13, 2009 7:25 AM Subject: [rrd-users] How to Create the rrd that storeor update million of requests per second
> > Hi All, > > I have to store each request data to rrd database. the request granularity > can be more or less than one million hits per second. > can rrd support granularity in milli/micro seconds. It will do sub-second precision when updating, but not in DSes and RRAs. In other words: it will take the average (or max, min) of these updates. > 1) How much time the request takes on average for each: minute, hour, work > day (6am-8pm), day (24 hour), week, month That's not a million per second, is it? Are you perhaps saying that in a certain second you could get many (that million) requests but you do not really care about which request came first, and how many microseconds before the next? > 2) Scatter graph of all requests so I can plot the time of every request > over a period of time (day, week, month, year) and see where the majority > of > requests perform and what the outliers are (really slow, really fast). I don't think rrdtool can do this, or it has to be a new feature which I did not yet play with. > 3) How many requests per second, minute, hour, word day, day, week, month > > 4) Number of requests in each “performance group”. For example, how many > requests are 0-100ms, 101-200ms, 201-300ms, 301-400ms, 401-500ms, etc ... > > 5) When am I having requests > 1000ms? < 5000ms? What is associated with > these? Certain times of day? Certain traffic volumes? Easy, easy, easy. I don't think rrdtool is the right tool for you, even if you could work around certain issues. It comes close though, so if you have not given a correct problem description, rrdtool may prove to be useful after all. Only that scatter graph will be a problem (unless, again, there is a new feature I have not yet explored). HTH Alex _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
