Aliaksandr Valialkin
084664d780
lib/encoding: substitute 64-bits.LeadingZeros64() with bits.Len64()
2022-02-01 11:20:20 +02:00
Aliaksandr Valialkin
5d255846ac
all: add go:build lines for Go1.17
...
See https://tip.golang.org/doc/go1.17#gofmt for more details
2021-07-26 15:50:46 +03:00
Aliaksandr Valialkin
edf3ee2a9b
lib: dump compressed block contents on error during decompression
...
This should improve detecting root cause for https://github.com/facebook/zstd/issues/2222
2020-08-15 14:51:14 +03:00
Aliaksandr Valialkin
d962568e93
all: use %w instead of %s for wrapping errors in fmt.Errorf
...
This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:33:46 +03:00
Aliaksandr Valialkin
2aecf7c37c
lib/{encoding,decimal}: typo fixes in tests: epxecting->expecting
2020-04-28 00:02:19 +03:00
Aliaksandr Valialkin
806dc73d8a
lib/encoding: reduce possibility of failure in TestMarshalInt64ArraySize
2020-04-28 00:02:18 +03:00
Aliaksandr Valialkin
d3c185f0ca
lib/encoding: log the compressed block contents if it cannot be decompressed or unmarshaled
...
This should help detecting the root cause of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
2019-12-24 20:48:25 +02:00
Aliaksandr Valialkin
091e35cf0c
lib/encoding: mention src contents in error message returned from unmarshalInt64NearestDelta*
...
This should simplify detecting the root cause of the issue at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
2019-12-24 20:41:38 +02:00
Aliaksandr Valialkin
0e51058a0d
lib/encoding: mention unpacked block size in the error message if unparsed tail left
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/281
2019-12-24 20:35:20 +02:00
Aliaksandr Valialkin
44f886cc9c
lib/encoding/zstd: typo fix
2019-12-23 18:37:20 +02:00
Aliaksandr Valialkin
108a60d69e
lib/encoding/zstd: call zstd.Decoder.Close instead of zstd.Decoder.Reset in order to free up occupied goroutines
...
This should fix goroutine leak for https://github.com/klauspost/compress/issues/195
2019-12-23 18:32:28 +02:00
Aliaksandr Valialkin
335bd0ac0a
lib/encoding/zstd: prevent from possible encoder leak when concurrent goroutines create encoders for the same compressionLevel
...
Thanks to @klauspost for the pointer to this issue. See https://github.com/klauspost/compress/issues/195 for details.
2019-12-23 18:06:02 +02:00
Aliaksandr Valialkin
5d439cc6f2
lib/{decimal,encoding}: optimize float64<->decimal conversion for arrays with zeros or ones
...
Time series with only zeros or ones frequently occur in monitoring, so it is worth optimizing their handling.
2019-11-01 16:46:08 +02:00
Aliaksandr Valialkin
1037053fed
lib/{encoding,decimal}: add benchmarks for blocks containing zeros or ones
...
Time series with such values are quite common in monitoring space,
so it would be great to have benchmarks for them.
2019-11-01 16:46:08 +02:00
Aliaksandr Valialkin
272e2f77c9
lib/encoding: optimize UnmarshalUint* and UnmarshalInt*
2019-09-20 13:08:24 +03:00
Aliaksandr Valialkin
f2e8d54fb0
lib/encoding/zstd: go fmt
2019-07-25 01:37:57 +03:00
Aliaksandr Valialkin
97b5dc7122
lib/encoding/zstd: disable CRC checks in pure Go build
...
This should give slightly better compression and decompressions performance.
Additionally this shaves off 4 bytes per each compressed block.
2019-07-24 19:17:32 +03:00
Aliaksandr Valialkin
54f035d4ce
all: small updates after PR #114
2019-07-24 17:43:43 +03:00
Aliaksandr Valialkin
7a133567fb
lib/encoding: small fixes in tests after the PR #114
2019-07-24 17:43:39 +03:00
Roman Khavronenko
fcf09aaa3c
all: add Pure Go build (pull request #114 )
...
Updates #94
2019-07-24 17:43:32 +03:00
Aliaksandr Valialkin
3fae34eeb4
lib/encoding: improve gauge series detection
...
- Series with negative values are always gauges
- Counters may only have increasing values with possible counter resets
This should improve compression ratio for gauge series which
were previously mistakenly detected as counters.
2019-07-20 14:05:25 +03:00
Aliaksandr Valialkin
bdf696ef18
all: fix misspellings
2019-05-25 21:51:24 +03:00
Aliaksandr Valialkin
9b64dfee4b
lib/encoding: add vm_zstd_block_{compress|decompress}_calls_total for determining the number CompressZSTD / DecompressZSTD calls
2019-05-24 13:01:15 +03:00
Aliaksandr Valialkin
b23352dc9e
lib/encoding: add vm_zstd_block_{original|compressed}_bytes_total metrics for rough estimation of block compression ratio
2019-05-24 12:34:51 +03:00
Aliaksandr Valialkin
f67f40d63a
lib/encoding: substitute CompressZSTD with CompressZSTDLevel
2019-05-24 12:32:49 +03:00
Aliaksandr Valialkin
1836c415e6
all: open-sourcing single-node version
2019-05-23 00:18:06 +03:00
