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gunnarmorling
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1brc
1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java
https://www.morling.dev/blog/one-billion-row-challenge/
Apache License 2.0
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Validation script to handle unsorted results and all results
#624
ericxiao251
closed
3 months ago
1
Validation script to handle unsorted results and all results
#623
ericxiao251
closed
6 months ago
1
Reduce preferred vector size
#622
ianopolousfast
closed
7 months ago
1
Reduce preferred vector size
#621
ianopolousfast
closed
7 months ago
0
Processing three at once
#620
artsiomkorzun
closed
7 months ago
2
Bytesfellow initial submittion
#619
bytesfellow
closed
7 months ago
1
Use native type, remove lots of type conversions
#618
abeobk
closed
7 months ago
1
anestoruk submission
#617
anestoruk
closed
7 months ago
1
Processing two rows at once
#616
artsiomkorzun
closed
7 months ago
3
serkan-ozal's 3rd submission with some minor improvements
#615
serkan-ozal
closed
7 months ago
4
Dkarampi solution
#614
dkarampi
closed
7 months ago
3
last perf papercut
#613
iziamos
closed
7 months ago
7
serkan-ozal's 2nd submission with some minor improvements
#612
serkan-ozal
closed
7 months ago
3
Mahadev virtual thread 1brc
#611
mahadev-k
closed
7 months ago
6
Correct leaderboard link from _vemana.java to _vemanaNonIdiomatic.java
#610
vemana
closed
7 months ago
3
Second version by albertoventurini
#609
albertoventurini
closed
7 months ago
1
jhonesto: first submission
#608
jhonesto
closed
7 months ago
4
jerrinot's improvement
#607
jerrinot
closed
7 months ago
4
Some fine tuning for thomaswue
#606
thomaswue
closed
7 months ago
14
Fix hash code collisions
#605
jgrateron
closed
7 months ago
1
Initial submission for varunsankethi
#604
varunsankethi
closed
7 months ago
3
Use LinkedBlockingQueue to process results - based on thomaswue
#603
tivrfoa
closed
7 months ago
6
Solution without unsafe using vector API
#602
giovannicuccu
closed
7 months ago
9
Reading 1B row file using Java NIO lib.
#601
manishgarg90
closed
7 months ago
2
(new submission) melgenek: ~top 15 on 10k. Buffered IO, VarHandles, vectors, custom hashtable
#600
melgenek
closed
7 months ago
3
Thank you for the challange!!
#599
JaimePolidura
closed
7 months ago
12
sudhirtumati implementation
#598
sudhirtumati
closed
6 months ago
7
Next version
#596
roman-r-m
closed
7 months ago
4
1BRC gigiblender
#595
gigiblender
closed
7 months ago
1
Larger heap, small tweaks
#593
royvanrijn
closed
7 months ago
2
Initial Submission Spiderpig86
#592
Spiderpig86
closed
7 months ago
2
improve hard disk access locality, another 8%
#591
abeobk
closed
7 months ago
1
First attempt with Java-managed concurrency
#590
dqhieuu
closed
7 months ago
1
Simplify station dedupe
#589
ianopolousfast
closed
7 months ago
3
Initial submission
#588
rcasteltrione
closed
7 months ago
2
1brc using concurrent hash map
#587
vikasmb
closed
6 months ago
4
Initial submission for jonathan_aotearoa.
#586
jonathan-aotearoa
closed
7 months ago
20
armandino: minimise hash collisions + other improvements
#585
armandino
closed
7 months ago
2
Simplify Node class with less field, improve hash mix speed
#584
abeobk
closed
7 months ago
1
Down to 14s locally (1s faster)
#583
ianopolousfast
closed
7 months ago
1
tonivade improved solution
#582
tonivade
closed
7 months ago
1
Second submission to keep a bit of dignity
#581
dmitry-midokura
closed
7 months ago
1
Updates for gamlerhart: Simpler & Faster
#580
gamlerhart
closed
7 months ago
3
CalculateAverage_gonix update
#579
gonix
closed
7 months ago
1
Contribution by albertoventurini
#578
albertoventurini
closed
7 months ago
2
More small tweaks, perf from 77.. to 75.., another 2-3%?
#577
royvanrijn
closed
7 months ago
2
Small improvements
#576
artsiomkorzun
closed
7 months ago
3
Adding solution for cb0s
#575
cb0s
closed
6 months ago
8
minor simplification, little bit faster
#574
abeobk
closed
7 months ago
0
dpsoft: first submission
#572
dpsoft
closed
6 months ago
18
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