enable madvise defines in netbsd
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1238 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1238 a5681a0c-68f1-0310-ab6d-d61299d08faa
added 1.2.26
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1236 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1236 a5681a0c-68f1-0310-ab6d-d61299d08faa
remove last traces of rrd_nan_inf.h
fix handling of min==max where min < 0
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1234 a5681a0c-68f1-0310-ab6d-d61299d08faa
fix handling of min==max where min < 0
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1234 a5681a0c-68f1-0310-ab6d-d61299d08faa
spell checked
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1231 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1231 a5681a0c-68f1-0310-ab6d-d61299d08faa
added report
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1230 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1230 a5681a0c-68f1-0310-ab6d-d61299d08faa
re-indented files that have gone out of indent-style over the last few weeks
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1228 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1228 a5681a0c-68f1-0310-ab6d-d61299d08faa
integrate rrd_nan_inf header
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1227 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1227 a5681a0c-68f1-0310-ab6d-d61299d08faa
Improve layout of documentation. -- Bernhard Fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1226 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1226 a5681a0c-68f1-0310-ab6d-d61299d08faa
* rrd_update(): Unify error path.
* parse_template(): Likewise.
* allocate_data_structures(): Make error strings use consistent punctuation.
-- bernhard fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1225 a5681a0c-68f1-0310-ab6d-d61299d08faa
* parse_template(): Likewise.
* allocate_data_structures(): Make error strings use consistent punctuation.
-- bernhard fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1225 a5681a0c-68f1-0310-ab6d-d61299d08faa
make sure this compiles with aix
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1224 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1224 a5681a0c-68f1-0310-ab6d-d61299d08faa
lisa update
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1214 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1214 a5681a0c-68f1-0310-ab6d-d61299d08faa
fixed start end time in ruby fetch and added step size -- Mike Perham mperham gmail
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1213 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1213 a5681a0c-68f1-0310-ab6d-d61299d08faa
updated build instructions
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1211 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1211 a5681a0c-68f1-0310-ab6d-d61299d08faa
handle errors properly ... in RRDp read call
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1209 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1209 a5681a0c-68f1-0310-ab6d-d61299d08faa
fixed name for release
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1208 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1208 a5681a0c-68f1-0310-ab6d-d61299d08faa
getting ready for release
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1207 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1207 a5681a0c-68f1-0310-ab6d-d61299d08faa
no reason to die when posixfadvise is not sucessful
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1204 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1204 a5681a0c-68f1-0310-ab6d-d61299d08faa
Allow to the the smoothing window size other thatn the default 5%.
-- Evan Miller emiller imvu.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1203 a5681a0c-68f1-0310-ab6d-d61299d08faa
-- Evan Miller emiller imvu.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1203 a5681a0c-68f1-0310-ab6d-d61299d08faa
added msync before unmap
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1202 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1202 a5681a0c-68f1-0310-ab6d-d61299d08faa
added STDEV aggregation function for VDEF. -- Patrick J Cherry patrick bytemark.co.uk
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1201 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1201 a5681a0c-68f1-0310-ab6d-d61299d08faa
a few leanups -- Bernhard Fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1200 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1200 a5681a0c-68f1-0310-ab6d-d61299d08faa
added missing ;
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1199 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1199 a5681a0c-68f1-0310-ab6d-d61299d08faa
* mimic write() and read() even better -- Bernhard Fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1198 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1198 a5681a0c-68f1-0310-ab6d-d61299d08faa
rrd_open.c (rrd_read): Mimicing read() behaviour for EOF case and NULL buffer case.
-- Bernhard Fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1197 a5681a0c-68f1-0310-ab6d-d61299d08faa
-- Bernhard Fischer
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1197 a5681a0c-68f1-0310-ab6d-d61299d08faa
fixed speling of horizon
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1196 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1196 a5681a0c-68f1-0310-ab6d-d61299d08faa
a better performance tester
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1194 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1194 a5681a0c-68f1-0310-ab6d-d61299d08faa
added holt winters example back into the examples documentation
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1193 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1193 a5681a0c-68f1-0310-ab6d-d61299d08faa
Fix for HoltWinters phase-shift bug described below.
When one or more primary data point times were missed, the SEASONAL and
DEVSEASONAL archives were marked as being up-to-date, so that they would not
be written to. It was correct not to write to these archives, but the code
failed to advance the pointers within the SEASONAL and DEVSEASONAL archives
so that future updates would go to the correct location in the archives.
Rather than mark these archives as up-to-date (by setting
rra_step_cnt[rra_idx] = 0), my patch allocates a new "skip_update" array
that is set to 1 for SEASONAL and DEVSEASONAL archives that have missed one
or more primary data points. When an RRA is written to, the cur_row pointer
advancement happens for all archives, but the skip_update array is checked
just before actually writing out the changes.
Please give it a whirl!
-- Evan Miller emiller imvu.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1192 a5681a0c-68f1-0310-ab6d-d61299d08faa
When one or more primary data point times were missed, the SEASONAL and
DEVSEASONAL archives were marked as being up-to-date, so that they would not
be written to. It was correct not to write to these archives, but the code
failed to advance the pointers within the SEASONAL and DEVSEASONAL archives
so that future updates would go to the correct location in the archives.
Rather than mark these archives as up-to-date (by setting
rra_step_cnt[rra_idx] = 0), my patch allocates a new "skip_update" array
that is set to 1 for SEASONAL and DEVSEASONAL archives that have missed one
or more primary data points. When an RRA is written to, the cur_row pointer
advancement happens for all archives, but the skip_update array is checked
just before actually writing out the changes.
Please give it a whirl!
-- Evan Miller emiller imvu.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1192 a5681a0c-68f1-0310-ab6d-d61299d08faa
Refactored rrd_update code in preparation of finding the HW update
problem -- Evan Miller
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1191 a5681a0c-68f1-0310-ab6d-d61299d08faa
problem -- Evan Miller
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1191 a5681a0c-68f1-0310-ab6d-d61299d08faa
updated build instructions for 1.3
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1190 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1190 a5681a0c-68f1-0310-ab6d-d61299d08faa
initial talk
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1189 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1189 a5681a0c-68f1-0310-ab6d-d61299d08faa
addded details
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1187 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1187 a5681a0c-68f1-0310-ab6d-d61299d08faa
prepare for the release of rrdtool-1.2.99907080300
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1185 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1185 a5681a0c-68f1-0310-ab6d-d61299d08faa
remove some things we do not need anymore in 1.3
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1184 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1184 a5681a0c-68f1-0310-ab6d-d61299d08faa
prepare for the release of rrdtool-1.2.99907080300
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1183 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1183 a5681a0c-68f1-0310-ab6d-d61299d08faa
prepare for 1.3 beta 1
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1182 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1182 a5681a0c-68f1-0310-ab6d-d61299d08faa
continue with the revision numbering
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1181 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1181 a5681a0c-68f1-0310-ab6d-d61299d08faa
added notes on pango inline formatting
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1180 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1180 a5681a0c-68f1-0310-ab6d-d61299d08faa
talk updates
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1179 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1179 a5681a0c-68f1-0310-ab6d-d61299d08faa
only release cairo stuff if we ever initialized it.
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1178 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1178 a5681a0c-68f1-0310-ab6d-d61299d08faa
fix for 64bit portability problem ... unsigned long is not int
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1177 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1177 a5681a0c-68f1-0310-ab6d-d61299d08faa
added toppics
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1174 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1174 a5681a0c-68f1-0310-ab6d-d61299d08faa
fixed indenting
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1173 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1173 a5681a0c-68f1-0310-ab6d-d61299d08faa
17 years agomake sure we check input even when the previous update was a 'U' ... and some indenti...
make sure we check input even when the previous update was a 'U' ... and some indenting fixes
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1172 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1172 a5681a0c-68f1-0310-ab6d-d61299d08faa
added missing header
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1170 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1170 a5681a0c-68f1-0310-ab6d-d61299d08faa
new consolidation functions must be added last or this will break binary compatibility
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1169 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1169 a5681a0c-68f1-0310-ab6d-d61299d08faa
don't force data out ... let cache management do this
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1168 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1168 a5681a0c-68f1-0310-ab6d-d61299d08faa
Only create version 4 rrd files if the new holtwinters MHW.. CF is used.
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1167 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1167 a5681a0c-68f1-0310-ab6d-d61299d08faa
* remove some experimental code from rrd_open
* rrd_dontneed will release all data except for header blocks and RRA hot blocks
which are going to be updated withing 10 minutes.
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1166 a5681a0c-68f1-0310-ab6d-d61299d08faa
* rrd_dontneed will release all data except for header blocks and RRA hot blocks
which are going to be updated withing 10 minutes.
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1166 a5681a0c-68f1-0310-ab6d-d61299d08faa
for now, do not release fetched data ... in the future we may call rrd_dontneed and let the users decied with an option
if they want to keep the data in cache ...
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1165 a5681a0c-68f1-0310-ab6d-d61299d08faa
if they want to keep the data in cache ...
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1165 a5681a0c-68f1-0310-ab6d-d61299d08faa
the fonts are now taken from the system. we do not distribute them anympore
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1164 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1164 a5681a0c-68f1-0310-ab6d-d61299d08faa
not on update rrd version
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1163 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1163 a5681a0c-68f1-0310-ab6d-d61299d08faa
we have a new holtwinders aggregation fucntion, so we have a new version ...
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1162 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1162 a5681a0c-68f1-0310-ab6d-d61299d08faa
check for fadvise all the time
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1161 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1161 a5681a0c-68f1-0310-ab6d-d61299d08faa
better docs on the aggregate functions
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1160 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1160 a5681a0c-68f1-0310-ab6d-d61299d08faa
added note on locale
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1159 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1159 a5681a0c-68f1-0310-ab6d-d61299d08faa
some more piechart removed
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1158 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1158 a5681a0c-68f1-0310-ab6d-d61299d08faa
make sure all ascii to float parsing uses LC_NUMERIC = C so that we do not stuble on locales confusing the , with a .
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1157 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1157 a5681a0c-68f1-0310-ab6d-d61299d08faa
* rrd_open: rrd_close does not purge file from cache
* rrd_open: new function rrd_dontneed for purging un-needed pages from core
* rrd_open: in linux at least only fadivse DONTNEED has the power to purge
pages from cache, so letst call madvise as well as fadvise
* rrd_create: uses open/write/close now, flushes file to disk and keeps only hot pages in core
* rrd_update: keeps only hot pages in core
* configure enables FADVISE even when mmap is in use
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1156 a5681a0c-68f1-0310-ab6d-d61299d08faa
* rrd_open: new function rrd_dontneed for purging un-needed pages from core
* rrd_open: in linux at least only fadivse DONTNEED has the power to purge
pages from cache, so letst call madvise as well as fadvise
* rrd_create: uses open/write/close now, flushes file to disk and keeps only hot pages in core
* rrd_update: keeps only hot pages in core
* configure enables FADVISE even when mmap is in use
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1156 a5681a0c-68f1-0310-ab6d-d61299d08faa
added comment on float cookie
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1155 a5681a0c-68f1-0310-ab6d-d61299d08faa
fix for fetch in ruby bindings and support for info added.
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1154 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1154 a5681a0c-68f1-0310-ab6d-d61299d08faa
added report
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1152 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1152 a5681a0c-68f1-0310-ab6d-d61299d08faa
improve wording
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1149 a5681a0c-68f1-0310-ab6d-d61299d08faa
fix tcl build settup
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1148 a5681a0c-68f1-0310-ab6d-d61299d08faa
monor updates
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1147 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1147 a5681a0c-68f1-0310-ab6d-d61299d08faa
usr rrd_free for freeing the rrd structs ... vito caputo
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1146 a5681a0c-68f1-0310-ab6d-d61299d08faa
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fixed linebreak
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remove the 3.5h comment
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1143 a5681a0c-68f1-0310-ab6d-d61299d08faa
initial emanics versions
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1142 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1142 a5681a0c-68f1-0310-ab6d-d61299d08faa
prevent potential segfaults on boxes where time_t is not long
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1141 a5681a0c-68f1-0310-ab6d-d61299d08faa
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add halfday
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updated for lisa
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1135 a5681a0c-68f1-0310-ab6d-d61299d08faa
fix indentation
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1134 a5681a0c-68f1-0310-ab6d-d61299d08faa
Bernhard Fischer:
- move several static struct option out of loops and makes them
non-static
- moves some functions from old-style definitions into new-style
definitions
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1133 a5681a0c-68f1-0310-ab6d-d61299d08faa
- move several static struct option out of loops and makes them
non-static
- moves some functions from old-style definitions into new-style
definitions
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1133 a5681a0c-68f1-0310-ab6d-d61299d08faa
Bernhard is not Benrard
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1132 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1132 a5681a0c-68f1-0310-ab6d-d61299d08faa
lets have just a single rrdtool extension annd not two ...
-- Jarod Wilson <jwilson@redhat.com>
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1131 a5681a0c-68f1-0310-ab6d-d61299d08faa
-- Jarod Wilson <jwilson@redhat.com>
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1131 a5681a0c-68f1-0310-ab6d-d61299d08faa
notes on evans contribs
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1130 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1130 a5681a0c-68f1-0310-ab6d-d61299d08faa
rrdtool.spec from Jarod "redhat" Wilson
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1129 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1129 a5681a0c-68f1-0310-ab6d-d61299d08faa
updated contributors
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1127 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1127 a5681a0c-68f1-0310-ab6d-d61299d08faa
added note on TEXTALIGN
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1126 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1126 a5681a0c-68f1-0310-ab6d-d61299d08faa
There are two popular variants of the Holt-Winters forecasting method; RRDtool
supports the "additive" method, which means that seasonal variation is simply
added to the baseline. For our application, it would be more appropriate to use
the "multiplicative" Holt-Winters method, where seasonal variation is a
coefficient multiplied by the baseline. Quick example to illustrate the
difference: if the average doubles season-over-season, the additive method
would predict the delta between min and max to be constant, whereas the
multiplicative method would predict the delta to double as well.
Attached is a patch against trunk to support the multiplicative method. I've
done this with a new consolidation function, MHWPREDICT, which is essentially
interchangeable with HWPREDICT. There is a noticeable improvement in prediction
deviations for certain types of functions; the attachments show HWPREDICT and
MHWPREDICT predictions for a function with an x*sin(x) component.
Because HWPREDICT and MHWPREDICT differ only in their equations, I've factored
out their math into rrd_hw_math.c. The appropriate smoothing functions are
passed to the update functions in a container of function pointers, which are
called where appropriate. Thus the additive and multiplicative methods use the
same update functions, and the right equations are evaluated without having
flag checks everywhere. This approach, I think, makes the algorithms quite
clear, with minimal duplicate code.
I have moved update_hwpredict, update_seasonal, update_devpredict,
update_devseasonal, and update_failures into a separate file, rrd_hw_update.c,
with some slight refactoring related to rrd_hw_math.c. I ran some
regression tests against trunk to make sure I didn't break anything with
the existing HWPREDICT code.
MHWPREDICT uses the same deviation smoothing and failure detection algorithms
as HWPREDICT.
Some helpful references on the multiplicative Holt-Winters method:
http://www.it.iitb.ac.in/~praj/acads/seminar/04329008_ExponentialSmoothing.pdf
(a student's quick overview of additive vs. multiplicative HW)
http://ideas.repec.org/p/msh/ebswps/1999-1.html (paper on variations to the
multiplicative Holt-Winters, including variance calculations; FYI, my
implementation uses "Model 1")
My employer and the owner of this patch (IMVU, Inc.) is happy to license it
under the same terms as RRDtool, i.e. give it to the project.
-- Evan Miller emiller imvu.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1125 a5681a0c-68f1-0310-ab6d-d61299d08faa
supports the "additive" method, which means that seasonal variation is simply
added to the baseline. For our application, it would be more appropriate to use
the "multiplicative" Holt-Winters method, where seasonal variation is a
coefficient multiplied by the baseline. Quick example to illustrate the
difference: if the average doubles season-over-season, the additive method
would predict the delta between min and max to be constant, whereas the
multiplicative method would predict the delta to double as well.
Attached is a patch against trunk to support the multiplicative method. I've
done this with a new consolidation function, MHWPREDICT, which is essentially
interchangeable with HWPREDICT. There is a noticeable improvement in prediction
deviations for certain types of functions; the attachments show HWPREDICT and
MHWPREDICT predictions for a function with an x*sin(x) component.
Because HWPREDICT and MHWPREDICT differ only in their equations, I've factored
out their math into rrd_hw_math.c. The appropriate smoothing functions are
passed to the update functions in a container of function pointers, which are
called where appropriate. Thus the additive and multiplicative methods use the
same update functions, and the right equations are evaluated without having
flag checks everywhere. This approach, I think, makes the algorithms quite
clear, with minimal duplicate code.
I have moved update_hwpredict, update_seasonal, update_devpredict,
update_devseasonal, and update_failures into a separate file, rrd_hw_update.c,
with some slight refactoring related to rrd_hw_math.c. I ran some
regression tests against trunk to make sure I didn't break anything with
the existing HWPREDICT code.
MHWPREDICT uses the same deviation smoothing and failure detection algorithms
as HWPREDICT.
Some helpful references on the multiplicative Holt-Winters method:
http://www.it.iitb.ac.in/~praj/acads/seminar/04329008_ExponentialSmoothing.pdf
(a student's quick overview of additive vs. multiplicative HW)
http://ideas.repec.org/p/msh/ebswps/1999-1.html (paper on variations to the
multiplicative Holt-Winters, including variance calculations; FYI, my
implementation uses "Model 1")
My employer and the owner of this patch (IMVU, Inc.) is happy to license it
under the same terms as RRDtool, i.e. give it to the project.
-- Evan Miller emiller imvu.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1125 a5681a0c-68f1-0310-ab6d-d61299d08faa
oops missed to update the in memory output interface here
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1124 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1124 a5681a0c-68f1-0310-ab6d-d61299d08faa
added interface to get rendered image via a pointer to allocated memory ... Evan Miller emmiller gmail.com
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1123 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1123 a5681a0c-68f1-0310-ab6d-d61299d08faa
improve fontnaming
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fixed indentation
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1121 a5681a0c-68f1-0310-ab6d-d61299d08faa
added TEXTALIGN command to change the default text alignment
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1120 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1120 a5681a0c-68f1-0310-ab6d-d61299d08faa
fixed tcl includes
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1119 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1119 a5681a0c-68f1-0310-ab6d-d61299d08faa
17 years agobe more helpful when raising rb_eTypeError in string_arr string_arr_new(VALUE rb_stri...
be more helpful when raising rb_eTypeError in string_arr string_arr_new(VALUE rb_strings). This patch indicates which index is in error as well as the type you are erroneously passing. -- anonymous
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1118 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1118 a5681a0c-68f1-0310-ab6d-d61299d08faa
Bernhard Fischer:
- fix nulling the updvals
- cosmetic change to move the option struct out of the loop.
- need to operate on a copy of optarg
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1116 a5681a0c-68f1-0310-ab6d-d61299d08faa
- fix nulling the updvals
- cosmetic change to move the option struct out of the loop.
- need to operate on a copy of optarg
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1116 a5681a0c-68f1-0310-ab6d-d61299d08faa
added TRENDNAN function -- Timo Stripf
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1115 a5681a0c-68f1-0310-ab6d-d61299d08faa
allow output to stdout -- Timo Stripf
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added more news
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fixed indentation, added documentation note on gridfitting.
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fix arrow locations
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disable gridfitting for vector formats
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make pdf output work
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git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1109 a5681a0c-68f1-0310-ab6d-d61299d08faa
added detail
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1108 a5681a0c-68f1-0310-ab6d-d61299d08faa
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1108 a5681a0c-68f1-0310-ab6d-d61299d08faa
--font-render-mode is back, and there is also
--graph-render-mode now. It allows to enable
mono graphs that look strikingly like rrdtool 1.0.x
--tobi
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1107 a5681a0c-68f1-0310-ab6d-d61299d08faa
--graph-render-mode now. It allows to enable
mono graphs that look strikingly like rrdtool 1.0.x
--tobi
git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk@1107 a5681a0c-68f1-0310-ab6d-d61299d08faa