Green-Sky/solanaceae_ngc_ft1
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spread chosen chunks more thinly if small files

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should help (a little) if many small files with distribution
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Green Sky 2024-08-02 13:06:55 +02:00
parent 6da1f9afca
commit 9e2911b36c
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1 changed files with 4 additions and 1 deletions
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solanaceae/ngc_ft1_sha1/chunk_picker.cpp
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@ -327,7 +327,8 @@ std::vector<ChunkPicker::ContentChunkR> ChunkPicker::updateChunkRequests(
//PickerStrategyRandom ps(chunk_candidates, total_chunks, _rng);
PickerStrategyRandomSequential ps(chunk_candidates, total_chunks, _rng, start_offset);
size_t out_chunk_idx {0};
while (ps.gen(out_chunk_idx) && req_ret.size() < num_requests) {
size_t req_from_this_o {0};
while (ps.gen(out_chunk_idx) && req_ret.size() < num_requests && req_from_this_o < std::max<size_t>(total_chunks/3, 1)) {
// out_chunk_idx is a potential candidate we can request form peer
// - check against double requests
@ -355,6 +356,8 @@ std::vector<ChunkPicker::ContentChunkR> ChunkPicker::updateChunkRequests(
// TODO: move this after packet was sent successfully
// (move net in? hmm)
requested_chunks[out_chunk_idx] = Components::FT1ChunkSHA1Requested::Entry{0.f, c};
req_from_this_o++;
}
}