104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
/**
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* =========================================================================
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* File : file_stats.h
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* Project : 0 A.D.
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* Description : gathers statistics from all file modules.
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* =========================================================================
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*/
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// license: GPL; see lib/license.txt
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#ifndef INCLUDED_FILE_STATS
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#define INCLUDED_FILE_STATS
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#define FILE_STATS_ENABLED 1
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enum FileIOImplentation { FI_LOWIO, FI_AIO, FI_BCACHE, FI_MAX_IDX };
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enum FileOp { FO_READ, FO_WRITE };
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enum CacheRet { CR_HIT, CR_MISS };
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#include "io/block_cache.h" // BlockId
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#if FILE_STATS_ENABLED
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// vfs
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extern void stats_vfs_file_add(size_t file_size);
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extern void stats_vfs_file_remove(size_t file_size);
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extern void stats_vfs_init_start();
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extern void stats_vfs_init_finish();
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// file
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extern void stats_unique_name(size_t name_len);
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extern void stats_open(const char* atom_fn, size_t file_size);
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extern void stats_close();
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// file_buf
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extern void stats_buf_alloc(size_t size, size_t alignedSize);
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extern void stats_buf_free();
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extern void stats_buf_ref();
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// file_io
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extern void stats_io_user_request(size_t user_size);
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// this is used to measure effective throughput for the two
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// synchronous IO variants.
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// note: improved measurements of the actual aio throughput by instrumenting
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// issue/wait doesn't work because IOManager's decompression may cause us to
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// miss the exact end of IO, thus throwing off measurements.
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class ScopedIoMonitor
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{
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public:
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ScopedIoMonitor();
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~ScopedIoMonitor();
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void NotifyOfSuccess(FileIOImplentation fi, char mode, size_t size);
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private:
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double m_startTime;
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};
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extern void stats_io_check_seek(BlockId& blockId);
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extern void stats_cb_start();
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extern void stats_cb_finish();
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// file_cache
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extern void stats_cache(CacheRet cr, size_t size, const char* atom_fn);
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extern void stats_block_cache(CacheRet cr);
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// archive builder
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extern void stats_ab_connection(bool already_exists);
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extern void file_stats_dump();
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#else
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#define stats_vfs_file_add(file_size)
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#define stats_vfs_file_remove(file_size)
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#define stats_vfs_init_start()
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#define stats_vfs_init_finish()
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#define stats_unique_name(name_len)
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#define stats_open(atom_fn, file_size)
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#define stats_close()
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#define stats_buf_alloc(size, alignedSize)
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#define stats_buf_free()
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#define stats_buf_ref()
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#define stats_io_user_request(user_size)
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class ScopedIoMonitor
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{
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public:
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ScopedIoMonitor() {}
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~ScopedIoMonitor() {}
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void NotifyOfSuccess(FileIOImplentation fi, char mode, size_t size) {}
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};
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#define stats_io_check_seek(blockId)
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#define stats_cb_start()
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#define stats_cb_finish()
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#define stats_cache(cr, size, atom_fn)
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#define stats_block_cache(cr)
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#define stats_ab_connection(already_exists)
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#define file_stats_dump()
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#endif
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#endif // #ifndef INCLUDED_FILE_STATS
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