7dcaf5c639
fix: typos ( #19734 )
2020-10-13 09:50:32 -07:00
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
964bc3c19e
fix(encoding): Improve simple8b another 6%; fix inconsequential bug
...
simple8b encodes deltas[1:], thus deltas[0] >= simple8b.MaxValue is
invalid.
Also changed loop calculating deltas, RLE and max to be similar to
batch timestamp, for greater consistency.
Improvements over previous commit:
```
name old time/op new time/op delta
name old time/op new time/op delta
EncodeIntegers/1000_seq/batch-8 1.50µs ± 1% 1.48µs ± 1% -1.40% (p=0.008 n=5+5)
EncodeIntegers/1000_ran/batch-8 6.10µs ± 0% 5.69µs ± 2% -6.58% (p=0.008 n=5+5)
EncodeIntegers/1000_dup/batch-8 1.50µs ± 1% 1.49µs ± 0% -1.21% (p=0.008 n=5+5)
```
Improvements overall:
```
name old time/op new time/op delta
EncodeIntegers/1000_seq/batch-8 2.04µs ± 0% 1.48µs ± 1% -27.25% (p=0.008 n=5+5)
EncodeIntegers/1000_ran/batch-8 8.80µs ± 2% 5.69µs ± 2% -35.29% (p=0.008 n=5+5)
EncodeIntegers/1000_dup/batch-8 2.03µs ± 1% 1.49µs ± 0% -26.93% (p=0.008 n=5+5)
```
2018-10-16 12:08:12 +01:00
e9531b7830
feat(encoding): Improve integer and simple8b encoding performance
...
simple8b EncodeAll improvements should
```
name old time/op new time/op delta
EncodeAll/1_bit-8 28.5µs ± 1% 28.6µs ± 1% ~ (p=0.133 n=9+10)
EncodeAll/2_bits-8 28.9µs ± 2% 28.7µs ± 0% ~ (p=0.068 n=10+8)
EncodeAll/3_bits-8 29.3µs ± 1% 28.8µs ± 0% -1.70% (p=0.000 n=10+10)
EncodeAll/4_bits-8 29.6µs ± 1% 29.1µs ± 1% -1.85% (p=0.000 n=10+10)
EncodeAll/5_bits-8 30.6µs ± 1% 29.8µs ± 2% -2.70% (p=0.000 n=10+10)
EncodeAll/6_bits-8 31.3µs ± 1% 30.0µs ± 1% -4.08% (p=0.000 n=9+9)
EncodeAll/7_bits-8 32.6µs ± 1% 30.8µs ± 0% -5.49% (p=0.000 n=9+9)
EncodeAll/8_bits-8 33.6µs ± 2% 31.0µs ± 1% -7.77% (p=0.000 n=10+9)
EncodeAll/10_bits-8 34.9µs ± 0% 31.9µs ± 2% -8.55% (p=0.000 n=9+10)
EncodeAll/12_bits-8 36.8µs ± 1% 32.6µs ± 1% -11.35% (p=0.000 n=9+10)
EncodeAll/15_bits-8 39.8µs ± 1% 34.1µs ± 2% -14.40% (p=0.000 n=10+10)
EncodeAll/20_bits-8 45.2µs ± 3% 36.2µs ± 1% -19.97% (p=0.000 n=10+9)
EncodeAll/30_bits-8 55.0µs ± 0% 40.9µs ± 1% -25.62% (p=0.000 n=9+9)
EncodeAll/60_bits-8 86.2µs ± 1% 55.2µs ± 1% -35.92% (p=0.000 n=10+10)
EncodeAll/combination-8 582µs ± 2% 502µs ± 1% -13.80% (p=0.000 n=9+9)
```
EncodeIntegers:
```
name old time/op new time/op delta
EncodeIntegers/1000_seq/batch-8 2.04µs ± 0% 1.50µs ± 1% -26.22% (p=0.008 n=5+5)
EncodeIntegers/1000_ran/batch-8 8.80µs ± 2% 6.10µs ± 0% -30.73% (p=0.008 n=5+5)
EncodeIntegers/1000_dup/batch-8 2.03µs ± 1% 1.50µs ± 1% -26.04% (p=0.008 n=5+5)
```
EncodeTimestamps (ran is improved due to simple8b improvements)
```
name old time/op new time/op delta
EncodeTimestamps/1000_seq/batch-8 2.64µs ± 1% 2.65µs ± 2% ~ (p=0.310 n=5+5)
EncodeTimestamps/1000_ran/batch-8 64.0µs ± 1% 33.8µs ± 1% -47.23% (p=0.008 n=5+5)
EncodeTimestamps/1000_dup/batch-8 9.32µs ± 0% 9.28µs ± 1% ~ (p=0.087 n=5+5)
```
2018-10-16 12:08:12 +01:00
592127e411
Batch oriented unsigned encoder
2018-10-16 12:05:52 +01:00
de5ca4a108
Batch oriented int encoders
...
This commit adds a tsm1 function for encoding a batch of ints 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:
name old time/op new time/op delta
EncodeIntegers/10_seq 144ns ± 2% 41ns ± 1% -71.46% (p=0.000 n=10+10)
EncodeIntegers/10_ran 304ns ± 7% 140ns ± 2% -53.99% (p=0.000 n=10+10)
EncodeIntegers/10_dup 147ns ± 4% 41ns ± 2% -72.14% (p=0.000 n=10+9)
EncodeIntegers/100_seq 483ns ± 7% 208ns ± 1% -56.98% (p=0.000 n=10+9)
EncodeIntegers/100_ran 1.64µs ± 7% 1.01µs ± 1% -38.42% (p=0.000 n=9+9)
EncodeIntegers/100_dup 484ns ±14% 210ns ± 2% -56.63% (p=0.000 n=10+10)
EncodeIntegers/1000_seq 3.11µs ± 2% 1.81µs ± 2% -41.68% (p=0.000 n=10+10)
EncodeIntegers/1000_ran 16.9µs ±10% 11.0µs ± 2% -34.58% (p=0.000 n=10+10)
EncodeIntegers/1000_dup 3.05µs ± 3% 1.81µs ± 2% -40.71% (p=0.000 n=10+8)
name old alloc/op new alloc/op delta
EncodeIntegers/10_seq 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/10_ran 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/10_dup 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/100_seq 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/100_ran 128B ± 0% 0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/100_dup 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/1000_seq 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
EncodeIntegers/1000_ran 1.15kB ± 0% 0.00kB -100.00% (p=0.000 n=10+10)
EncodeIntegers/1000_dup 32.0B ± 0% 0.0B -100.00% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
EncodeIntegers/10_seq 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/10_ran 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/10_dup 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/100_seq 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/100_ran 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/100_dup 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/1000_seq 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/1000_ran 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
EncodeIntegers/1000_dup 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10)
2018-10-16 12:05:52 +01:00
c1d82fccf0
Rename unsigned batch decoders
2018-10-16 12:05:52 +01:00
f81e75f4c1
Rename integer batch decoders
2018-10-16 12:05:52 +01:00
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
sans
Stuart Carnie
Mark Rushakoff
Edd Robinson