X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=NEWS;h=dc5d53259bdb41e87603c53cc909259892b0cccd;hb=600d3bed47fa7cde815d16f642f0b383738395d1;hp=403f7000d79ffbcbd7a7d3fa01b07a6dd4bdadc0;hpb=a1fe8fd19bb4f558150e52c0624869667b739877;p=rrdtool.git diff --git a/NEWS b/NEWS index 403f700..dc5d532 100644 --- a/NEWS +++ b/NEWS @@ -1,9 +1,72 @@ 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. + +Incompatibilities +----------------- +* Colons in COMMENT arguments to rrdtool graph must be escaped with a backslash + +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. + +--------------- + + Configure and Makefiles and accordingly. + +2002/03/26 Peter Speck + Contribution of an svg output routine for the new gfx graphing part + +2002/03/23 Alex van den Bogaerdt + Several visible changes made to rrd_graph + * Pie chart support workable + * Elements that are not used do not take up space on the img + * Hack for the missing rotated text (see --vertical-label) + * Tiny boxes in front of labels now scale with the text 2002/01/15 Tobias Oetiker The BIG graph update @@ -12,7 +75,7 @@ for details check the cvs ChangeLog * Updated zlib and libpng * rrd_gfx.c intrduced as libart wrapper * LINE takes now a float as argument - * rrdtool uses truetype for fonts + * RRDtool uses truetype for fonts * thanks to libart there is now full alpha transparenc and antialiasing. * the new option --font lets customize the font @@ -42,13 +105,13 @@ for details check the cvs ChangeLog 2001/03/07 Tobias Oetiker Integrated complete rewrite of rrdgraph documentation by Alex van den Bogaerdt - . This also contains info on his planned + . This also contains info on his planned changes to the rrdgraph module 2001/03/02 Tobias Oetiker Added Aberrant Patch from Jake Brutlag From now one, new rrd files use version tag 0002. They can - NOT be read by the old 1.0.x rrdtools. + NOT be read by the old 1.0.x RRDtools. Jake: Aberrant Behavior Detection support. A brief overview added to