e8ce64a5dead8af9390b97bd8e58d4e4ba391809
1 RRDTOOL NEWS
2 ============
3 Major Changes between 1.2.x and 1.3.x
5 Graphing
6 --------
7 * libart has been replaced by cairo/pango
8 * pango markup is supported
9 * full gridfitting
11 RRDTOOL NEWS
12 ============
13 Major Changes between 1.0.x and 1.2.x
15 Graphing
16 --------
18 * rewritten graphics generation based on libart.
19 - anti-aliased output
20 - alpha transparency support
21 - truetype fonts
23 * additional graphics formats: EPS, PDF, SVG
25 * extended multi-part documentation
27 * VDEF support; define and use variables. Find, and use, the
28 maximum rate seen by rrdtool; compute and show the average
30 * Sliding window (trend) analysis
31 Compute a smoother average, for instance over the last 6 CDPs
33 * percentile (95th or other)
34 Remove peaks, 95 percent of all rates are at or below the
35 returned value
37 Logging
38 -------
39 * a second logging interface: rrdtool updatev
40 Verbose updating of the database; show CPDs being created
42 * Aberrant Behavior Detection with Holt-Winters Forecasting
43 Compare current data with expected data, detect and log when
44 the rates are outside expected levels
46 * COMPUTE data type for artificial data-sources calculating their
47 input using RPN math and data from the other data-sources.
49 Incompatibilities
50 -----------------
51 * Colons in COMMENT arguments to rrdtool graph must be escaped with a backslash
53 * the --alt-y-mrtg option is gone or rather since 1.2.7 it is back but
54 without functionality.
56 * In pipe mode, rrdtool answers with OK only if it was successful with the
57 command. Otherwhise the answer will be ERROR...
60 Behind the Scenes
61 -----------------
62 * In order to support Holt-Winters and Calculated Datasources,
63 the rrdtool data format has changed. While the new version of rrdtool can
64 read files created with rrdtool 1.0.x. It is not possible to read files
65 created by rrdtool-1.2.x with rrdtool-1.0.x
67 * External libraries are not included with rrdtool anymore. This is in line
68 with todays trend of using shared libraries everywhere. With the exception
69 of the cgi library most things required by rrdtool will be found on every recent
70 system.
72 * Memory Mapped IO support for faster logging.