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Major Changes between 1.3.x and 1.4.x
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-------------------------------------
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$Id: NEWS 2005 2010-01-20 19:47:04Z oetiker $
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RRD Caching Daemon (rrdcached)
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------------------------------
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by Florian Forster and Kevin Brintnall
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The RRD Caching Daemon can dramatically improve the 'update' performance
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of your system. Due to file handling overheads, the time it takes todo one
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update is virtually the same as to doing two updates in a row.
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The Cache Daemon intercepts rrdtool update calls, assembling multiple
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updates before writing them to the actual rrd file. When calling rrdtool
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graph in such a setup, the command will tell the daemon to flush out all
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pending updates for the rrd files, required to draw the graph.
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See rrdcached documentation.
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RRD Dumping and Restoring (rrdtool dump/restore)
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------------------------------------------------
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The output of rrdtool dump has been adjusted to be simpler to parse by
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The restore core has been completely re-written yet again and is now relying
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on an incremental xml parser. This has the advantage that the memory
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consumption while restoring xml files is only slightly larger than the
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resulting rrd file. Which is much less than the requirements of the 1.3 and
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RRD Graphing functions (rrdtool graph)
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--------------------------------------
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* VDEF PERCENTNAN (a PRECENT that ignores NAN)
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* CDEF PREDICT and PREDICTSIGMA functions for on-the-fly
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data prediction without the need to modify existing rrd files as it is
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required for HoltWinters.
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* LibDBI integration provides a path to read data directly of a supported
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SQL database into rrdtool graph. See rrdgraph_libdbi documentation.
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* graph legends can now be placed left, right or above the graph with the
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new --legend-direction and --legend-positon placement options.
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* switched to using automake 1.11 which provides a 'silent' build process,
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causing errors and warnings to stand out much more than before.
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* switched from intltoolize to autopoint for the i18n configuration.
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* new graph option --grid-dash on:off to configure the dash length
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in the grid painted over the graph by Tobi Oetiker
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* lua bindings for rrdtool
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* various improvements to rrd_open functions and mmap handling
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* allow the HW smoothing window size to be set to 0 with rrdtool tune
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* new graph option --border to set the 3d border width
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by Bernhard Reutner-Fischer
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* draw different color markers (enable with --dynamic-labels) depending on the
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type of element in the graph by Lo�c Tortay
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for more detail see the CHANGES file.
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Major Changes between 1.2.x and 1.3.x
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* --font-render-mode=mono for non anti aliased fonts
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* fonts come through fontconfig, use the Pango font nameing scheme
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-> 'Times 20' ... it is not possible to use truetype fonts
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* fonts come through fontconfig, use the Pango font naming scheme
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-> 'Times 20' ... it is not possible to use true-type fonts
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* Tabs are position independent.
added
removed
NEWS
