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WL#775 "Add status variable identifying binlog_cache_size shortage"

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Added two status variables: 
  binlog_cache_use - counts number of transactions that used somehow
    transaction temporary binary log.
  binlog_cache_disk_use - counts number of transactions that required
    disk I/O for storing info in this this binary log.
This commit is contained in:
dlenev@jabberwock.localdomain
2004-04-02 00:47:20 +04:00
parent ad7e09dec4
commit a80f46bfdf
9 changed files with 77 additions and 3 deletions
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2
mysys/mf_iocache.c
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@ -152,6 +152,7 @@ int init_io_cache(IO_CACHE *info, File file, uint cachesize,
info->alloced_buffer = 0;
info->buffer=0;
info->seek_not_done= test(file >= 0);
info->disk_writes= 0;
#ifdef THREAD
info->share=0;
#endif
@ -1153,6 +1154,7 @@ int my_b_flush_io_cache(IO_CACHE *info, int need_append_buffer_lock)
}
info->append_read_pos=info->write_pos=info->write_buffer;
++info->disk_writes;
UNLOCK_APPEND_BUFFER;
DBUG_RETURN(info->error);
}