VictoriaMetrics/lib
Roman Khavronenko 7cb894a777
lib/streamaggr: reduce number of inuse objects (#6402)
The main change is getting rid of interning of sample key. It was
discovered that for cases with many unique time series aggregated by
vmagent interned keys could grow up to hundreds of millions of objects.
This has negative impact on the following aspects:
1. It slows down garbage collection cycles, as GC has to scan all inuse
objects periodically. The higher is the number of inuse objects, the
longer it takes/the more CPU it takes.
2. It slows down the hot path of samples aggregation where each key
needs to be looked up in the map first.

The change makes code more fragile, but suppose to provide performance
optimization for heavy-loaded vmagents with stream aggregation enabled.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-06-07 15:45:52 +02:00
..
appmetrics all: add -metrics.exposeMetadata command-line flag, which can be used for adding TYPE and HELP metadata for metrics exposed at /metrics page 2023-12-19 03:20:40 +02:00
auth lib/auth: add NewTokenPossibleMultitenant() for parsing auth token, which can be multitenant 2023-08-30 14:17:55 +02:00
awsapi lib/awsapi: properly assume role with webIdentity token (#5495) 2023-12-20 19:05:39 +02:00
backup lib/backup: add -s3TLSInsecureSkipVerify command-line flag (#6318) 2024-05-22 13:58:39 +02:00
blockcache lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
bloomfilter lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
bufferedwriter app/vmselect: move common http functionality from app/vmselect/searchutils to lib/httputils 2023-06-19 22:34:20 -07:00
buildinfo all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00
bytesutil lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
cgroup lib/cgroup: remove SetGOGC() function 2024-02-05 12:11:08 +02:00
decimal lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
encoding lib/encoding: optimize UnmarshalVarUint64, UnmarshalVarInt64 and UnmarshalBytes a bit 2024-05-14 01:23:54 +02:00
envflag lib/envflag: do not allow unsupported form for boolean command-line flags in the form -boolFlag value 2023-08-17 13:26:53 +02:00
envtemplate allowed using dashes and dots in environment variables names (#4009) 2023-03-24 15:43:05 -07:00
fastnum lib/fastnum: use unsafe.Slice() instead of deprecated reflect.SliceHeader 2024-02-29 17:17:13 +02:00
fasttime lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
filestream lib/filestream: do not measure read / write duration from / to in-memory buffers 2024-01-23 14:52:22 +02:00
flagutil Revert "app/vmbackup: introduce new flag type URL (#6152)" 2024-04-24 13:47:57 +02:00
formatutil app/vmbackupmanager: add metrics for better observability (#488) 2022-12-20 14:18:06 -08:00
fs lib/fs: support NFS implementations that return EEXIST instead of ENOTEMPTY (#6398) 2024-06-04 15:17:38 +02:00
htmlcomponents lib/htmlcomponents: use relative links for the top page and for favicon.ico 2023-11-13 20:29:05 +01:00
httpserver lib/httpserver: add support for automatic issuing of TLS certificates via Lets Encrypt service 2024-04-17 23:50:57 +02:00
httputils app/vmalert: support DNS SRV record in -remoteWrite.url (#6299) 2024-05-22 10:52:51 +02:00
influxutils lib/flagutil: rename Array to ArrayString 2022-10-01 18:26:36 +03:00
ingestserver Statsd protocol compatibility (#5053) 2024-05-07 21:46:08 +02:00
leveledbytebufferpool lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
logger lib/logger: increase default -loggerMaxArgLen command-line flag value from 500 to 1000 2023-11-14 19:52:27 +01:00
logstorage lib/logstorage: work-in-progress 2024-06-06 12:27:05 +02:00
lrucache lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
memory all: cleanup: remove // +build ... lines, since they are no longer needed after Go1.17, and the minimum supported Go version for VictoriaMetrics source code is Go1.20 2023-11-13 19:12:51 +01:00
mergeset lib/mergeset: adds tracking for indexdb records drop (#6297) 2024-05-24 14:55:20 +02:00
metricsql all: make fmt via the upcoming Go1.19 2022-07-11 19:22:15 +03:00
netutil lib/netutil: move creation of GetCertificate callback into a separate function 2024-04-17 22:10:43 +02:00
persistentqueue Feature allow configuring disableOnDiskQueue and dropSamplesOnOverload per url (#6248) 2024-05-10 12:09:21 +02:00
procutil all: cleanup: remove // +build ... lines, since they are no longer needed after Go1.17, and the minimum supported Go version for VictoriaMetrics source code is Go1.20 2023-11-13 19:12:51 +01:00
promauth all: replace old https://docs.victoriametrics.com/sd_configs.html url with the new one - https://docs.victoriametrics.com/sd_configs/ 2024-04-18 02:27:47 +02:00
prompb Exemplar support (#5982) 2024-05-07 12:09:44 +02:00
prompbmarshal lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
promrelabel lib/promrelabel: speedup label match by __name__ (#6432) 2024-06-07 15:44:48 +02:00
promscrape app/vmalert: support DNS SRV record in -remoteWrite.url (#6299) 2024-05-22 10:52:51 +02:00
promutils lib/logstorage: work-in-progress 2024-06-04 01:49:02 +02:00
protoparser follow-up for c6c5a5a186 (#6265) 2024-05-16 09:25:42 +02:00
proxy lib/promscrape: use the standard net/http.Client instead of fasthttp.Client for scraping targets in non-streaming mode 2024-01-30 18:39:10 +02:00
pushmetrics lib/pushmetrics: wait until the background goroutines, which push metrics, are stopped at pushmetrics.Stop() 2024-01-15 13:50:36 +02:00
querytracer lib/querytracer: add missing blank comment line after 3121d76bee 2023-11-15 16:10:43 +01:00
ratelimiter app/vmagent: properly shutdown when -maxIngestionRate limit is reached 2024-03-30 06:43:48 +02:00
regexutil lib/logstorage: work-in-progress 2024-05-25 22:59:13 +02:00
slicesutil lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
snapshot Revert "app/vmbackup: introduce new flag type URL (#6152)" 2024-04-24 13:47:57 +02:00
storage lib/storage: filter deleted label names and values from `/api/v1/labe… (#6342) 2024-05-29 14:07:44 +02:00
streamaggr lib/streamaggr: reduce number of inuse objects (#6402) 2024-06-07 15:45:52 +02:00
stringsutil lib/logstorage: work-in-progress 2024-05-22 21:01:20 +02:00
syncwg all: open-sourcing single-node version 2019-05-23 00:18:06 +03:00
tenantmetrics lib/encoding/zstd: switch back from atomic.Pointer to atomic.Value for map[...]... 2023-07-20 20:56:11 -07:00
timerpool lib/timerpool: use timer pool in concurrency limiters 2019-05-28 17:20:10 +03:00
timeutil all: add up to 10% random jitter to the interval between periodic tasks performed by various components 2024-01-22 18:40:32 +02:00
uint64set lib/slicesutil: add helper functions for setting slice length and extending its capacity 2024-05-12 11:32:17 +02:00
workingsetcache lib: consistently use atomic.* types instead of atomic.* functions 2024-02-24 02:07:53 +02:00
writeconcurrencylimiter app/vmagent/remotewrite: clarify the reason behind the default value for -remoteWrite.queues in the same way as the reason for -maxConcurrentInserts is defined at 73f5fb0f0c 2024-03-06 13:43:08 +02:00