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The Prometheus monitoring system and time series database.
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Brian Brazil c7e7fd355e Only send WAL read workers the samples they need. 
Calculating the modulus in each worker was a hotspot,
and meant that you had more work to do the more cores you had.
This cuts CPU usage (on my 8 core, 4 real core machine) by
33%, and walltime by 3%

Signed-off-by: Brian Brazil <brian.brazil@robustperception.io>
2018-10-31 22:52:26 +00:00
chunkenc fix some comments typos (#315) 2018-04-08 10:28:30 +01:00
chunks Make interval overlap comparisons more explicit 2018-07-02 10:35:08 +02:00
cmd/tsdb Using filepath.Join() instead of strings with slashes (#428) 2018-10-25 10:32:57 +01:00
docs/format Update the files format README.md (#437) 2018-10-29 19:51:47 +02:00
fileutil fileutil: remove dependency on prometheus/prometheus 2018-10-15 17:21:20 +02:00
index Using filepath.Join() instead of strings with slashes (#428) 2018-10-25 10:32:57 +01:00
labels Using filepath.Join() instead of strings with slashes (#428) 2018-10-25 10:32:57 +01:00
test index: simplify checksum validation 2017-11-09 15:58:36 +00:00
testdata Add repair test 2018-02-09 13:43:42 +01:00
testutil fileutil: remove dependency on prometheus/prometheus 2018-10-15 17:21:20 +02:00
tsdbutil refactor util funcs to allow re-usage. (#419) 2018-10-25 21:06:19 +01:00
wal more descriptive var names and some more logging. (#405) 2018-10-11 18:23:52 +03:00
.gitignore Add default benchmark output dir to .gitignore 2018-01-14 11:07:52 +00:00
.travis.yml Refactor Makefile to use Makefile.common (#324) 2018-09-21 11:08:38 +03:00
block.go Fix updating of NumTombstones in block.Delete(..) (#385) 2018-09-27 14:43:22 +03:00
block_test.go Add benchmark for querying a persisted block (#425) 2018-10-24 00:35:52 +03:00
checkpoint.go more descriptive var names and some more logging. (#405) 2018-10-11 18:23:52 +03:00
checkpoint_test.go Fix review comments 2018-09-28 15:00:51 +05:30
compact.go compact: Verify for chunks outside of compacted time range. Added unit test for populateBlocs. (#349) 2018-10-12 12:45:19 +03:00
compact_test.go compact: Verify for chunks outside of compacted time range. Added unit test for populateBlocs. (#349) 2018-10-12 12:45:19 +03:00
db.go remove unused changes variable (#391) 2018-09-21 09:24:01 +03:00
db_test.go refactor util funcs to allow re-usage. (#419) 2018-10-25 21:06:19 +01:00
encoding_helpers.go Fix minor typos in comments 2018-01-15 14:27:49 +01:00
head.go Only send WAL read workers the samples they need. 2018-10-31 22:52:26 +00:00
head_bench_test.go Reduce allocations for queries on HEAD (#417) 2018-10-22 13:52:01 +03:00
head_test.go refactor util funcs to allow re-usage. (#419) 2018-10-25 21:06:19 +01:00
LICENSE Add license file 2017-04-10 21:02:42 +02:00
MAINTAINERS.md add maintainers file (#404) 2018-10-15 14:32:00 +03:00
Makefile Refactor Makefile to use Makefile.common (#324) 2018-09-21 11:08:38 +03:00
Makefile.common Refactor Makefile to use Makefile.common (#324) 2018-09-21 11:08:38 +03:00
mocks_test.go compact: Verify for chunks outside of compacted time range. Added unit test for populateBlocs. (#349) 2018-10-12 12:45:19 +03:00
querier.go removed some unused code and moved mockSeriesSet in querier_test (#394) 2018-09-21 11:07:35 +03:00
querier_test.go refactor util funcs to allow re-usage. (#419) 2018-10-25 21:06:19 +01:00
README.md comments about the 120samples const and link to Gorilla papers. (#423) 2018-10-23 13:43:06 +03:00
record.go Add checkpointing of WAL segments 2018-07-19 07:24:40 -04:00
record_test.go Add checkpointing of WAL segments 2018-07-19 07:24:40 -04:00
repair.go Address Julius's comment 2018-06-20 09:19:49 +02:00
repair_test.go fix windows tests (#421) 2018-10-22 15:19:52 -04:00
tombstones.go Fix updating of NumTombstones in block.Delete(..) (#385) 2018-09-27 14:43:22 +03:00
tombstones_test.go remove put function and use RLock in Iter function 2018-06-25 21:52:11 +08:00
wal.go removed some unused code and moved mockSeriesSet in querier_test (#394) 2018-09-21 11:07:35 +03:00
wal_test.go Using filepath.Join() instead of strings with slashes (#428) 2018-10-25 10:32:57 +01:00

README.md

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This repository contains the Prometheus storage layer that is used in its 2.x releases.

A writeup of its design can be found here.

Based on the Gorilla TSDB white papers.

Video: Storing 16 Bytes at Scale from PromCon 2017.

See also the format documentation.