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Gerhard Schlager 7c3a29c9d6

DEV: Add converter framework for migrations-tooling (#28540 )

* Updates GitHub Actions
* Switches from `bundler/inline` to an optional group in the `Gemfile` because the previous solution didn't work well with rspec
* Adds the converter framework and tests
* Allows loading private converters (see README)
* Switches from multiple CLI tools to a single CLI
* Makes DB connections reusable and adds a new abstraction for the `IntermediateDB`
* `IntermediateDB` acts as an interface for IPC calls when a converter steps runs in parallel (forks). Only the main process writes to the DB.
* Includes a simple example implementation of a converter for now.

2024-09-09 17:14:39 +02:00

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Benchmark Results

Here are the latest benchmark results. All benchmarks ran with ruby 3.2.3 (2024-01-18 revision 52bb2ac0a6) [x86_64-linux]

database_write.rb

Compares the INSERT speed of SQLite and DuckDB

Database	User Time	System Time	Total Time	Real Time
SQLite3	99.212731	4.883932	104.096663	104.233575
Extralite	45.396666	4.457247	49.853913	50.065680
DuckDB	49.012140	10.210994	59.223134	52.095679

hash_vs_data.rb

Compares the INSERT speed when the data is bound as Hash or Data class

   Extralite regular    868.703k (± 2.2%) i/s -      8.744M in  10.070511s
      Extralite hash    579.753k (± 1.2%) i/s -      5.838M in  10.071266s
      Extralite data    672.752k (± 0.8%) i/s -      6.790M in  10.093191s
Extralite data/array    826.296k (± 0.9%) i/s -      8.318M in  10.067518s
     SQLite3 regular    362.037k (± 0.7%) i/s -      3.628M in  10.021699s
        SQLite3 hash    308.647k (± 1.1%) i/s -      3.111M in  10.081159s
   SQLite3 data/hash    288.747k (± 2.7%) i/s -      2.890M in  10.018335s

Comparison:
   Extralite regular:   868702.8 i/s
Extralite data/array:   826295.7 i/s - 1.05x  slower
      Extralite data:   672752.0 i/s - 1.29x  slower
      Extralite hash:   579753.5 i/s - 1.50x  slower
     SQLite3 regular:   362037.0 i/s - 2.40x  slower
        SQLite3 hash:   308646.7 i/s - 2.81x  slower
   SQLite3 data/hash:   288747.1 i/s - 3.01x  slower

parameter_binding.rb

A similar benchmark that looks at various parameter binding styles, especially in Extralite

   Extralite regular    825.159 (± 0.6%) i/s -      8.316k in  10.078450s
     Extralite named    571.135 (± 0.4%) i/s -      5.742k in  10.053796s
     Extralite index    769.273 (± 1.0%) i/s -      7.742k in  10.065238s
     Extralite array    860.549 (± 0.5%) i/s -      8.624k in  10.021749s
     SQLite3 regular    361.745 (± 0.6%) i/s -      3.636k in  10.051588s
       SQLite3 named    307.875 (± 0.6%) i/s -      3.090k in  10.036954s

Comparison:
     Extralite array:      860.5 i/s
   Extralite regular:      825.2 i/s - 1.04x  slower
     Extralite index:      769.3 i/s - 1.12x  slower
     Extralite named:      571.1 i/s - 1.51x  slower
     SQLite3 regular:      361.7 i/s - 2.38x  slower
       SQLite3 named:      307.9 i/s - 2.80x  slower

time_formatting.rb

Fastest way of converting Time into String?

        Time#iso8601      1.084M (± 0.9%) i/s -     10.875M in  10.033905s
       Time#strftime      1.213M (± 1.4%) i/s -     12.200M in  10.056764s
    DateTime#iso8601      2.419M (± 1.8%) i/s -     24.296M in  10.046295s

Comparison:
    DateTime#iso8601:  2419162.1 i/s
       Time#strftime:  1213390.0 i/s - 1.99x  slower
        Time#iso8601:  1083922.8 i/s - 2.23x  slower

write.rb

Compares writing lots of data into a single SQLite database.

single writer               43.9766 seconds
forked writer - same DB     53.5112 seconds
forked writer - multi DB     3.0815 seconds

3.0 KiB Raw Blame History