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improve disk stats logging to include cache hits

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This commit is contained in:
Arvid Norberg
2010-01-31 21:13:52 +00:00
parent e154d56c1f
commit 238f7e38f5
6 changed files with 48 additions and 26 deletions
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15
src/disk_io_thread.cpp
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@@ -1234,7 +1234,7 @@ namespace libtorrent
return j.buffer_size;
}
int disk_io_thread::try_read_from_cache(disk_io_job const& j)
int disk_io_thread::try_read_from_cache(disk_io_job const& j, bool& hit)
{
TORRENT_ASSERT(j.buffer);
TORRENT_ASSERT(j.cache_min_time >= 0);
@@ -1246,7 +1246,7 @@ namespace libtorrent
cache_piece_index_t::iterator p
= find_cached_piece(m_read_pieces, j, l);
bool hit = true;
hit = true;
int ret = 0;
// if the piece cannot be found in the cache,
@@ -1749,7 +1749,7 @@ namespace libtorrent
break;
}
#ifdef TORRENT_DISK_STATS
m_log << log_time() << " read " << j.buffer_size << std::endl;
m_log << log_time();
#endif
INVARIANT_CHECK;
TORRENT_ASSERT(j.buffer == 0);
@@ -1757,6 +1757,9 @@ namespace libtorrent
TORRENT_ASSERT(j.buffer_size <= m_block_size);
if (j.buffer == 0)
{
#ifdef TORRENT_DISK_STATS
m_log << " read 0" << std::endl;
#endif
ret = -1;
#if BOOST_VERSION == 103500
j.error = error_code(boost::system::posix_error::not_enough_memory
@@ -1773,8 +1776,12 @@ namespace libtorrent
disk_buffer_holder read_holder(*this, j.buffer);
ret = try_read_from_cache(j);
bool hit;
ret = try_read_from_cache(j, hit);
#ifdef TORRENT_DISK_STATS
m_log << (hit?" read-cache-hit ":" read ") << j.buffer_size << std::endl;
#endif
// -2 means there's no space in the read cache
// or that the read cache is disabled
if (ret == -1)