X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=NEWS;h=32ff16e7bd3d22b6c42ef8f76ce82e9a7fd28c26;hp=156864e7f855a28165ec662c4145ab185ba8a7bd;hb=299d1636596a1911659e0a53bfad5c47e72835e0;hpb=81b76ccf9449866b90a7014cf74cc1be3bbedb51 diff --git a/NEWS b/NEWS index 156864e..32ff16e 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,58 @@ RRDTOOL NEWS ============ +Major Changes between 1.2.x and 1.3.x + +see http://oss.oetiker.ch/rrdtool-trac/wiki/RRDtool13 +for up to date information + +File access methods (Bernhard Fischer) +------------------- +* introduced file-accessor functions rrd_read/rrd_seek/rrd_write +* implemented full mmap-based file access with madvise hints for improved + scalability, much reduced memory-footprint and much less blocking on + disk +* implemented optional full file-descriptor access instead of FILE* access + +Graphing (Tobi Oetiker) +-------- +* libart has been replaced by cairo/pango +* pango markup is supported +* full gridfitting +* --graph-render-mode=mono for non antialiased graphing +* --font-render-mode=mono for non antialiased fonts +* fonts come through fontconfig, use the Pango fontnameing + scheme -> 'Times 20' ... it is not possible to use + truetype fonts directly anymore. +* Tabs are position independent. +* TRENDNAN filter that ignores NAN values while caculating the TREND data. (Timo Stripf) +* --full-size-mode to specify the outer border of the image and not just of the graphing canvas (Matthew Chambers) +* TEXTALIGN command to alter default text alignment behaviour +* C API supports in-memory graphing with rrd_graph_in_memory (Evan Miller) +* draw dashed lines in graphs (Thomas Gutzler) + +Forecasting (Evan Miller) +----------- +* the new MHWPREDICT consolidation function uses a variation of the Holt-Winters + method. It is a drop-in replacement for HWPREDICT, and is better suited for + data whose seasonal variations grow or shrink in proportion to the average. + +Misc +---- +* ruby rrd_fetch will return step as a last property -- Mike Perham + +Incompatibility +--------------- +* If you create an RRD with the new MHWPREDICT function, the resulting rrdfile will + be version 0004 and can only be used in rrdtool 1.3. + +Locale Independent Input +------------------------ +* Regardles of locale you are in, rrdtool always expects input to be numbers (LC_NUMERIC) + in C or POSIX locale for numbers. (not 1,1 but 1.1) this is necessary to make + things like RPN work as it uses , as a separator. + +RRDTOOL NEWS +============ Major Changes between 1.0.x and 1.2.x Graphing