Changes between Version 25 and Version 26 of RTSsummaryEvents

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Timestamp:
01/09/12 22:56:55 (3 years ago)
Author:
MikolajKonarski (IP: 95.160.111.162)
Comment:

edit the Productivity comment after I've understood finally how the second figure is useful

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  • RTSsummaryEvents

    v25 v26  
    149149}}} 
    150150 
    151 The events added above should be enough. Again. we only do the elapsed case.  
    152 Ask JaffaCake if it's OK that the "% of total elapsed" in +RTS -s is actually the CPU time divided by elapsed time, not elapsed divided by elapsed. 
     151The events added above should be enough. Again. we only do the elapsed case, so we'd show elapsed/elapsed, while the figures above 
     152are cpu/cpu and cpu/elapsed. JaffCake thinks the latter mixture is OK. However, it mixes the productivity 
     153of CPU mutation vs elapsed mutation with the productivity of mutation vs GC. In this light, out figure will not be that bad,  
     154because it's consistent, even if not as accurate as the equally consistent first figure above.  
     155 
     156BTW, the fact that the second figure is higher (I can reproduce it), shows a problem with clocks or some other problem. 
     157I'd guess the elapsed time should always be higher than the CPU time, shouldn't it?