forked from premiere/premiere-libtorrent
tuning of guided read cache
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172f6c2513
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@ -177,7 +177,7 @@ namespace libtorrent
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, optimize_hashing_for_speed(true)
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, file_checks_delay_per_block(0)
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, disk_cache_algorithm(largest_contiguous)
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, read_cache_line_size(16)
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, read_cache_line_size(128)
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, write_cache_line_size(32)
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, optimistic_disk_retry(10 * 60)
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, disable_hash_checks(false)
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@ -3858,6 +3858,7 @@ namespace libtorrent
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int num_uploads = m_ses.num_uploads();
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if (num_uploads == 0) num_uploads = 1;
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// assume half of the cache is write cache if we're downloading
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// this torrent as well
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int cache_size = m_ses.m_settings.cache_size / num_uploads;
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@ -3866,9 +3867,6 @@ namespace libtorrent
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// cache line should not be greater than this
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// try to avoid locking caches for more than a couple of seconds
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if (upload_rate * 4 / 16 / 1024 < cache_size)
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cache_size = upload_rate * 4 / 16 / 1024;
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expiry = cache_size * 16 * 1024 / upload_rate;
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if (expiry < 1) expiry = 1;
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else if (expiry > 10) expiry = 10;
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