Changes between Version 1 and Version 2 of findwave


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Timestamp:
02/26/12 15:33:31 (8 years ago)
Author:
branden
Comment:

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  • findwave

    v1 v2  
    88Findwave is a command line diagnostic program. It attaches to a transport ring and discovers all TRACE_BUF messages on that ring. It then computes some statistics for each SCN, and writes this to a file. This file is rewritten every five seconds, listing the statistics at that time. Findwave also writes the number of distinct SCN's found to stdout. 
    99 
    10 Findwave attempts to be helpful for configuring WaveServers: 
     10Findwave attempts to be helpful for configuring !WaveServers: 
    1111 
    1212First, it lists the largest packet length (Msg Len Max) found for each SCN - this is suitable for the "Record size" field in wave_serverV.d. Second, it estimates the required tank size for 24 hours of trace data storage. This is computed for each SCN as follows: Find the average time contained in all TRACE_BUF messages seen for this SCN; assume that each message will live in a record of "Max Msg Len" bytes, and compute the number of such records required to store 24 hours of trace data.