f74c69c5e4
chore: update to go 1.20 ( #24088 )
...
* build: upgrade to go 1.19
* chore: bump go.mod
* chore: `gofmt` changes for doc comments
https://tip.golang.org/doc/comment
* test: update tests for new sort order
* chore: make generate-sources
* chore: make generate-sources
* chore: go 1.20
* chore: handle rand.Seed deprecation
* chore: handle rand.Seed deprecation in tests
---------
Co-authored-by: DStrand1 <dstrandboge@influxdata.com>
2023-02-09 14:14:35 -05:00
dee8977d2c
chore: move v2/v1/tsdb → v2/tsdb
2020-08-26 10:46:47 -07:00
f2898d1992
Wipe out workspace in preparation for v2 merge
...
"Knock knock."
"Who's there?"
"InfluxDB Veet."
...
2019-01-11 10:38:50 -08:00
43f96a6ddf
feat(encoding): Improve timestamp encoding
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Timestamp improvements prior to any improvements to simple8b
```
name old time/op new time/op delta
name old time/op new time/op delta
EncodeTimestamps/1000_seq/batch-8 2.64µs ± 1% 1.36µs ± 1% -48.25% (p=0.008 n=5+5)
EncodeTimestamps/1000_ran/batch-8 64.0µs ± 1% 32.2µs ± 1% -49.64% (p=0.008 n=5+5)
EncodeTimestamps/1000_dup/batch-8 9.32µs ± 0% 1.30µs ± 1% -86.06% (p=0.008 n=5+5)
```
2018-10-16 12:08:12 +01:00
d1b7e02483
Batch oriented timestamp encoders
...
This commit adds a tsm1 function for encoding a batch of timestamps into a
provided buffer.
The following benchmarks compare the performance of the existing
iterator based encoders, and the new batch oriented encoders. They look
at a sequential input slice, a randomly generated input slice and a
duplicate slice. All slices are sorted.
name old time/op new time/op delta
EncodeTimestamps/10_seq 153ns ± 2% 104ns ± 2% -31.62% (p=0.000 n=9+10)
EncodeTimestamps/10_ran 191ns ± 2% 142ns ± 0% -25.73% (p=0.000 n=10+9)
EncodeTimestamps/10_dup 114ns ± 1% 68ns ± 4% -39.77% (p=0.000 n=8+10)
EncodeTimestamps/100_seq 704ns ± 2% 321ns ± 2% -54.44% (p=0.000 n=9+9)
EncodeTimestamps/100_ran 7.27µs ± 4% 7.01µs ± 2% -3.59% (p=0.000 n=10+10)
EncodeTimestamps/100_dup 756ns ± 3% 396ns ± 2% -47.57% (p=0.000 n=10+10)
EncodeTimestamps/1000_seq 6.32µs ± 1% 2.46µs ± 2% -61.01% (p=0.000 n=8+10)
EncodeTimestamps/1000_ran 108µs ± 0% 68µs ± 3% -37.57% (p=0.000 n=8+10)
EncodeTimestamps/1000_dup 7.26µs ± 1% 3.64µs ± 1% -49.80% (p=0.000 n=10+8)
name old alloc/op new alloc/op delta
EncodeTimestamps/10_seq 0.00B 0.00B ~ (all equal)
EncodeTimestamps/10_ran 0.00B 0.00B ~ (all equal)
EncodeTimestamps/10_dup 0.00B 0.00B ~ (all equal)
EncodeTimestamps/100_seq 0.00B 0.00B ~ (all equal)
EncodeTimestamps/100_ran 0.00B 0.00B ~ (all equal)
EncodeTimestamps/100_dup 0.00B 0.00B ~ (all equal)
EncodeTimestamps/1000_seq 0.00B 0.00B ~ (all equal)
EncodeTimestamps/1000_ran 0.00B 0.00B ~ (all equal)
EncodeTimestamps/1000_dup 0.00B 0.00B ~ (all equal)
name old allocs/op new allocs/op delta
EncodeTimestamps/10_seq 0.00 0.00 ~ (all equal)
EncodeTimestamps/10_ran 0.00 0.00 ~ (all equal)
EncodeTimestamps/10_dup 0.00 0.00 ~ (all equal)
EncodeTimestamps/100_seq 0.00 0.00 ~ (all equal)
EncodeTimestamps/100_ran 0.00 0.00 ~ (all equal)
EncodeTimestamps/100_dup 0.00 0.00 ~ (all equal)
EncodeTimestamps/1000_seq 0.00 0.00 ~ (all equal)
EncodeTimestamps/1000_ran 0.00 0.00 ~ (all equal)
EncodeTimestamps/1000_dup 0.00 0.00 ~ (all equal)
2018-10-16 12:05:52 +01:00
9ecadd1a9c
Rename time batch decoders
2018-10-16 12:05:52 +01:00
0841c51d93
pr(tsdb): Feedback items from PR review
2018-07-13 11:42:02 -07:00
b3e53ae2dc
feat(tsm1): New APIs to decode an entire buffer of data
...
* APIs decode an entire byte slice of encoded data into the provided
`dst` slice
* APIs are stateless and in almost all cases avoid any allocations
* Intended to be used future batch-oriented TSM block decode APIs
* duplicated tests from original iterator-based APIs
2018-07-13 11:42:02 -07:00
Jeffrey Smith II
Stuart Carnie
Mark Rushakoff
Edd Robinson