forked from premiere/premiere-libtorrent
measure disk cache flush times
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@ -855,6 +855,7 @@ Returns status of the disk cache for this session.
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int average_read_time;
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int average_write_time;
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int average_hash_time;
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int average_cache_time;
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int job_queue_length;
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};
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@ -901,6 +902,9 @@ microseconds. Hash jobs include running SHA-1 on the data (which for the most
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part is done incrementally) and sometimes reading back parts of the piece. It
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also includes checking files without valid resume data.
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``average_cache_time`` is the average amuount of time spent evicting cached
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blocks that have expired from the disk cache.
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``job_queue_length`` is the number of jobs in the job queue.
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get_cache_info()
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@ -171,6 +171,7 @@ namespace libtorrent
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, average_read_time(0)
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, average_write_time(0)
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, average_hash_time(0)
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, average_cache_time(0)
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, job_queue_length(0)
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{}
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@ -206,6 +207,7 @@ namespace libtorrent
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int average_read_time;
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int average_write_time;
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int average_hash_time;
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int average_cache_time;
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int job_queue_length;
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};
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@ -442,6 +444,10 @@ namespace libtorrent
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// average hash time (in microseconds)
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sliding_average<512> m_hash_time;
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// average disk cache time (in microseconds)
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// scanning the cache for pieces to flush
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sliding_average<512> m_cache_time;
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typedef std::multimap<size_type, disk_io_job> read_jobs_t;
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read_jobs_t m_sorted_read_jobs;
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@ -342,6 +342,8 @@ namespace libtorrent
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ret.average_queue_time = m_queue_time.mean();
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ret.average_read_time = m_read_time.mean();
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ret.average_write_time = m_write_time.mean();
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ret.average_hash_time = m_hash_time.mean();
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ret.average_cache_time = m_cache_time.mean();
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ret.job_queue_length = m_jobs.size() + m_sorted_read_jobs.size();
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return ret;
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@ -1693,8 +1695,13 @@ namespace libtorrent
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m_ios.post(m_queue_callback);
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}
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ptime now = time_now_hires();
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m_queue_time.add_sample(total_microseconds(now - j.start_time));
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flush_expired_pieces();
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m_cache_time.add_sample(total_microseconds(time_now_hires() - now));
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int ret = 0;
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TORRENT_ASSERT(j.storage
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@ -1714,9 +1721,6 @@ namespace libtorrent
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if (j.storage && j.storage->get_storage_impl()->m_settings == 0)
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j.storage->get_storage_impl()->m_settings = &m_settings;
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ptime now = time_now_hires();
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m_queue_time.add_sample(total_microseconds(now - j.start_time));
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switch (j.action)
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{
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case disk_io_job::update_settings:
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@ -945,6 +945,7 @@ namespace aux {
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":disk cache size"
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":disk buffer allocations"
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":disk hash time"
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":disk cache time"
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"\n\n", m_stats_logger);
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}
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#endif
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@ -2714,7 +2715,7 @@ namespace aux {
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"%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t"
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"%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t"
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"%f\t%f\t%f\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t"
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"%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n"
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"%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n"
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, total_milliseconds(now - m_last_log_rotation) / 1000.f
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, int(m_stat.total_upload() - m_last_uploaded)
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, int(m_stat.total_download() - m_last_downloaded)
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@ -2793,6 +2794,7 @@ namespace aux {
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, cs.cache_size
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, cs.total_used_buffers
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, int(cs.average_hash_time)
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, int(cs.average_cache_time)
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);
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m_last_cache_status = cs;
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m_last_failed = m_total_failed_bytes;
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