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prometheus/tsdb
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Oleg Zaytsev fe9cb5a803
Check context every 128 labels instead of 100 (#14118) 
Follow up on https://github.com/prometheus/prometheus/pull/14096

As promised, I bring a benchmark, which shows a very small improvement
if context is checked every 128 iterations of label instead of every
100.

It's much easier for a computer to check modulo 128 than modulo 100.
This is a very small 0-2% improvement but I'd say this is one of the
hottest paths of the app so this is still relevant.

Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
2024-05-21 11:30:43 +02:00
..
agent Enable perfsprint linter and fix up code 2024-05-15 17:51:05 +03:00
chunkenc Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
chunks Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
docs Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
encoding tsdb/encoding: use Go standard errors package 2023-11-11 19:01:11 +01:00
errors Enable default revive rules (#13068) 2023-11-29 17:23:34 +00:00
fileutil tests: remove err from message when testify prints it already 2024-02-01 14:18:01 +00:00
goversion remove obsolete build tag 2024-01-17 22:26:32 +08:00
index Check context every 128 labels instead of 100 (#14118) 2024-05-21 11:30:43 +02:00
record Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
testdata
tombstones Update tombstones.go 2023-11-11 19:22:06 +01:00
tsdbutil Revert "Adding small test update for temp dir using t.TempDir (#13293)" 2023-12-30 19:17:30 +00:00
wlog Enable perfsprint linter and fix up code 2024-05-15 17:51:05 +03:00
.gitignore
block_test.go [ENHANCEMENT] TSDB: Optimize querying with regexp matchers 2024-05-09 10:55:30 +01:00
block.go [ENHANCEMENT] TSDB: Optimize querying with regexp matchers 2024-05-09 10:55:30 +01:00
blockwriter_test.go Add a chunk size limit in bytes (#12054) 2023-08-24 15:21:17 +02:00
blockwriter.go Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
CHANGELOG.md
compact_test.go Enable perfsprint linter and fix up code 2024-05-15 17:51:05 +03:00
compact.go Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
db_test.go Enable perfsprint linter and fix up code 2024-05-15 17:51:05 +03:00
db.go Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
example_test.go Add context argument to Querier.Select (#12660) 2023-09-12 12:37:38 +02:00
exemplar_test.go Enable perfsprint linter and fix up code 2024-05-15 17:51:05 +03:00
exemplar.go Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
head_append.go Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
head_bench_test.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
head_read_test.go [ENHANCEMENT] TSDB: Optimize querying with regexp matchers 2024-05-09 10:55:30 +01:00
head_read.go [ENHANCEMENT] TSDB: Optimize querying with regexp matchers 2024-05-09 10:55:30 +01:00
head_test.go Enable perfsprint linter and fix up code 2024-05-15 17:51:05 +03:00
head_wal.go Fix language in docs and comments (#14041) 2024-05-08 17:57:09 +02:00
head.go TSDB: Don't rely on integer overflow in head compaction check (#13755) 2024-03-26 12:17:38 +01:00
isolation_test.go
isolation.go tsdb: create isolation transaction slice on demand 2023-10-21 13:45:47 +00:00
mocks_test.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
ooo_head_read_test.go Move from golang.org/x/exp/slices into slices now that we only support Go >= 1.21 2024-02-28 14:54:53 +01:00
ooo_head_read.go [ENHANCEMENT] TSDB: Optimize querying with regexp matchers 2024-05-09 10:55:30 +01:00
ooo_head_test.go ci(lint): enable godot; append dot at the end of comments 2023-10-31 19:53:38 +02:00
ooo_head.go Fix issue where queries can fail or omit OOO samples if OOO head compaction occurs between creating a querier and reading chunks (#13115) 2023-11-24 12:38:38 +01:00
ooo_isolation_test.go Fix issue where queries can fail or omit OOO samples if OOO head compaction occurs between creating a querier and reading chunks (#13115) 2023-11-24 12:38:38 +01:00
ooo_isolation.go Fix issue where queries can fail or omit OOO samples if OOO head compaction occurs between creating a querier and reading chunks (#13115) 2023-11-24 12:38:38 +01:00
querier_bench_test.go Optimize label values with matchers by taking shortcuts (#13426) 2024-01-23 11:40:21 +01:00
querier_test.go tsdb: check for context cancel before regex matching postings (#14096) 2024-05-15 06:26:19 +02:00
querier.go tsdb: check for context cancel before regex matching postings (#14096) 2024-05-15 06:26:19 +02:00
README.md
repair_test.go tsdb tests: use go-cmp instead of DeepEquals 2024-02-08 19:32:33 +00:00
repair.go tsdb: use Go standard errors 2023-12-11 12:18:54 +00:00
tsdbblockutil.go Optimize histogram iterators (#13340) 2024-01-23 17:02:14 +01:00

README.md

TSDB

GoPkg

This directory contains the Prometheus TSDB (Time Series DataBase) library, which handles storage and querying of all Prometheus v2 data.

Documentation

External resources

A series of blog posts explaining different components of TSDB: