10 Commits (1f40859f9e599de5f96e50a55b0eed614b7583a5)

Author	SHA1	Message	Date
Bryan Boreham	b9a9689aae	[PERF] Chunk encoding: simplify writeByte ... Rather than append a zero then set the value at that position, append the value. Signed-off-by: Bryan Boreham <bjboreham@gmail.com>	2 months ago
Antoine Pultier	d90d0976b5	fix(bstream/writeByte): ensure it appends only one byte (#14854) ... fix(bstream/writeByte): ensure it appends only one byte Signed-off-by: Antoine Pultier <antoine.pultier@sintef.no>	2 months ago
Arve Knudsen	108a6bc9f6	tsdb/chunkenc.Pool: Refactor Get and Put ... Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>	7 months ago
Matthieu MOREL	fb3eb21230	enable gocritic, unconvert and unused linters ... Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>	2 years ago
Bryan Boreham	d166da7b59	tsdb: stop saving a copy of last 4 samples in memSeries (#11296) ... * TSDB chunks: remove race between writing and reading Because the data is stored as a bit-stream, the last byte in the stream could change if the stream is appended to after an Iterator is obtained. Copy the last byte when the Iterator is created, so we don't have to read it later. Clarify in comments that concurrent Iterator and Appender are allowed, but the chunk must not be modified while an Iterator is created. (This was already the case, in order to copy the bstream slice header.) * TSDB: stop saving last 4 samples in memSeries This extra copy of the last 4 samples was introduced to avoid a race condition between reading the last byte of the chunk and writing to it. But now we have fixed that by having `bstreamReader` copy the last byte, we don't need to copy the last 4 samples. This change saves 56 bytes per series, which is very worthwhile when you have millions or tens of millions of series. * TSDB: tidy up stopIterator re-use Previous changes have left this code duplicating some lines; pull them out to a separate function and tidy up. * TSDB head_test: stop checking when iterators are wrapped The behaviour has changed so chunk iterators are only wrapped when transaction isolation requires them to stop short of the end. This makes tests fail which are checking the type. Tests should check the observable behaviour, not the type. Signed-off-by: Bryan Boreham <bjboreham@gmail.com> Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> Co-authored-by: Ganesh Vernekar <ganeshvern@gmail.com>	2 years ago
Dieter Plaetinck	d5bfbe3114	improve bstream comments and doc (#9560) ... * improve bstream comments and doc Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * feedback Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
jinglina	1a430e5f89	remove redundant parentheses (#9134) ... Signed-off-by: jinglina <jinglinax@163.com>	3 years ago
Marco Pracucci	3b529ddbce	Cleanup bstream_test.go based on post-merge feedback received on #7390 (#7413) ... * Fixed bstream test license Signed-off-by: Marco Pracucci <marco@pracucci.com> * Simplified bstreamReader.loadNextBuffer() Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed date in license Signed-off-by: Marco Pracucci <marco@pracucci.com>	5 years ago
Marco Pracucci	f42ed03dc5	Optimized bstream reader used by XORChunk iterator (#7390) ... * Optimized bstream reader Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed linter Signed-off-by: Marco Pracucci <marco@pracucci.com> * Added license to new file Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed type cast Signed-off-by: Marco Pracucci <marco@pracucci.com> * Changed comments Signed-off-by: Marco Pracucci <marco@pracucci.com> * Improved comments and rolledback no-op changes Signed-off-by: Marco Pracucci <marco@pracucci.com> * Fixed race condition Signed-off-by: Marco Pracucci <marco@pracucci.com>	5 years ago
Ganesh Vernekar	7cf09b0395	Moving tsdb into its own subdirectory ... Signed-off-by: Ganesh Vernekar <cs15btech11018@iith.ac.in>	5 years ago