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2fdf520271
514: Stop flattening every field r=Kerollmops a=irevoire When we need to flatten a document: * The primary key contains a `.`. * Some fields need to be flattened Instead of flattening the whole object and thus creating a lot of allocations with the `serde_json_flatten_crate`, we instead generate a minimal sub-object containing only the fields that need to be flattened. That should create fewer allocations and thus index faster. --------- ``` group indexing_main_e1e362fa indexing_stop-flattening-every-field_40d1bd6b ----- ---------------------- --------------------------------------------- indexing/Indexing geo_point 1.99 23.7±0.23s ? ?/sec 1.00 11.9±0.21s ? ?/sec indexing/Indexing movies in three batches 1.00 18.2±0.24s ? ?/sec 1.01 18.3±0.29s ? ?/sec indexing/Indexing movies with default settings 1.00 17.5±0.09s ? ?/sec 1.01 17.7±0.26s ? ?/sec indexing/Indexing songs in three batches with default settings 1.00 64.8±0.47s ? ?/sec 1.00 65.1±0.49s ? ?/sec indexing/Indexing songs with default settings 1.00 54.9±0.99s ? ?/sec 1.01 55.7±1.34s ? ?/sec indexing/Indexing songs without any facets 1.00 50.6±0.62s ? ?/sec 1.01 50.9±1.05s ? ?/sec indexing/Indexing songs without faceted numbers 1.00 54.0±1.14s ? ?/sec 1.01 54.7±1.13s ? ?/sec indexing/Indexing wiki 1.00 996.2±8.54s ? ?/sec 1.02 1021.1±30.63s ? ?/sec indexing/Indexing wiki in three batches 1.00 1136.8±9.72s ? ?/sec 1.00 1138.6±6.59s ? ?/sec ``` So basically everything slowed down a liiiiiittle bit except the dataset with a nested field which got twice faster Co-authored-by: Tamo <tamo@meilisearch.com> |
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Milli
Fuzzing milli
Currently you can only fuzz the indexation. To execute the fuzzer run:
cargo +nightly fuzz run indexing
To execute the fuzzer on multiple thread you can also run:
cargo +nightly fuzz run -j4 indexing
Since the fuzzer is going to create a lot of temporary file to let milli index its documents I would also recommand to execute it on a ramdisk. Here is how to setup a ramdisk on linux:
sudo mount -t tmpfs none path/to/your/ramdisk
And then set the TMPDIR environment variable to make the fuzzer create its file in it:
export TMPDIR=path/to/your/ramdisk