i think this is a working concurrent logging scheme
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5 changed files with 117 additions and 99 deletions
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param.h
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param.h
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#define NCPU 8 // maximum number of CPUs
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#define NOFILE 16 // open files per process
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#define NFILE 100 // open files per system
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#define NBUF 10 // size of disk block cache
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#define NINODE 50 // maximum number of active i-nodes
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#define NDEV 10 // maximum major device number
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#define ROOTDEV 1 // device number of file system root disk
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#define MAXARG 32 // max exec arguments
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#define LOGSIZE 10 // max data sectors in on-disk log
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#define MAXOPBLOCKS 10 // max # of blocks any FS op writes
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#define LOGSIZE (MAXOPBLOCKS*3) // max data sectors in on-disk log
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#define NBUF (MAXOPBLOCKS*3) // size of disk block cache (>= LOGSIZE)
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