X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=NEWS;h=efab6eb8ad30eaa34ed4be16f677484b830e7b0c;hp=9d461b4cfe81c5411eef7df7cf634ff0c0e47dd5;hb=91725acad298d2f93a9060d9ceceeccbbe595782;hpb=d828f3eccac8dbad7bfc14812e406377669baaa4 diff --git a/NEWS b/NEWS index 9d461b4..efab6eb 100644 --- a/NEWS +++ b/NEWS @@ -1,12 +1,57 @@ RRDTOOL NEWS ============ +Major Changes between 1.0.x and 1.2.x +Graphing +-------- -In this file I am noting the major changes to RRDtool -for details check the cvs ChangeLog +* rewritten graphics generation based on libart. + - antialiased output + - alpha transparency support + - truetype fonts + +* additional graphics formats: EPS, PDF, SVG + +* extended multipart documentation + +* VDEF support; define and use variables. Find, and use, the + maximum rate seen by rrdtool; compute and show the average + +* Sliding window (trend) analysis + Compute a smoother average, for instance over the last 6 CDPs + +* percentile (95th or other) + Remove peaks, 95 percent of all rates are at or below the + returned value + +Logging +------- +* a second logging interface: rrdtool updatev + Verbose updating of the database; show CPDs being created + +* Aberrant Behavior Detection with Holt-Winters Forecasting + Compare current data with expected data, detect and log when + the rates are outside expected levels + +* COMPUTE datatype for artificial datasources calculating their + input using RPN math and data from the other datasources. + +Behind the Scenes +----------------- +* In order to support Holt-Winters and Calculated Datasources, + the rrdtool dataformat has changed. While the new version of rrdtool can + read files created with rrdtool 1.0.x. It is not possible to read files + created by rrdtool-1.2.x with rrdtool-1.0.x + +* External libraries are not included with rrdtool anymore. This is in line + with todays trend of using shared libraries everywhere. With the exception + of the cgi library most things required by rrdtool will be found on every recent + system. + +* Memory Mapped IO support for faster logging. + +--------------- -2004/01/20 Tobi Oetiker - Ripped out all foreign libraries and adapted Configure and Makefiles and accordingly. 2002/03/26 Peter Speck