X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=NEWS;h=7c69bdbdc1ab9745ea3f51b932e4b6abfc290fcc;hp=8f2a87888f72312c1d29911e5b3ee929ae44ca8c;hb=2269cac6b933b95875479de98d4da94d9efa195f;hpb=c505944c63f4dbe05943c05f3b927acca9394143 diff --git a/NEWS b/NEWS index 8f2a878..7c69bdb 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,48 @@ 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optional full file-descriptor access instead of FILE* access + +Graphing (Tobi Oetiker) +-------- +* libart has been replaced by cairo/pango +* pango markup is supported +* full gridfitting +* --graph-render-mode=mono for non antialiased graphing +* --font-render-mode=mono for non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) + +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. + +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 @@ -40,6 +83,13 @@ Incompatibilities ----------------- * Colons in COMMENT arguments to rrdtool graph must be escaped with a backslash +* the --alt-y-mrtg option is gone or rather since 1.2.7 it is back but + without functionality. + +* In pipe mode, rrdtool answers with OK only if it was successful with the + command. Otherwhise the answer will be ERROR... + + Behind the Scenes ----------------- * In order to support Holt-Winters and Calculated Datasources,