Comment # 1
on bug 1044
from Frank Ch. Eigler
Some more data, from pmchart -Dinterp., running an initial then time-panned
refresh:
% grep reads:.forward fast-Dinterp.log
__pmLogFetchInterp: log reads: forward 28 backwards 0
__pmLogFetchInterp: log reads: forward 0 backwards 44
__pmLogFetchInterp: log reads: forward 0 backwards 29
__pmLogFetchInterp: log reads: forward 8 backwards 14
__pmLogFetchInterp: log reads: forward 15 backwards 0
__pmLogFetchInterp: log reads: forward 32 backwards 0
__pmLogFetchInterp: log reads: forward 0 backwards 35
__pmLogFetchInterp: log reads: forward 0 backwards 20
__pmLogFetchInterp: log reads: forward 12 backwards 4
__pmLogFetchInterp: log reads: forward 26 backwards 0
[... and many others, with small forward / backward numbers ...]
% grep reads:.forward slow-Dinterp.log
[... out the same, then ...]
__pmLogFetchInterp: log reads: forward 8 backwards 69
__pmLogFetchInterp: log reads: forward 16 backwards 75
__pmLogFetchInterp: log reads: forward 0 backwards 114
__pmLogFetchInterp: log reads: forward 8 backwards 114
[...100 lines later...]
__pmLogFetchInterp: log reads: forward 16 backwards 1559
__pmLogFetchInterp: log reads: forward 0 backwards 1599
__pmLogFetchInterp: log reads: forward 8 backwards 1599
__pmLogFetchInterp: log reads: forward 16 backwards 1604
__pmLogFetchInterp: log reads: forward 0 backwards 1644
[...100 lines later...]
__pmLogFetchInterp: log reads: forward 0 backwards 3084
__pmLogFetchInterp: log reads: forward 8 backwards 3084
__pmLogFetchInterp: log reads: forward 16 backwards 3089
__pmLogFetchInterp: log reads: forward 0 backwards 3129
__pmLogFetchInterp: log reads: forward 8 backwards 3129
[...500 lines later...]
__pmLogFetchInterp: log reads: forward 16 backwards 7096
__pmLogFetchInterp: log reads: forward 0 backwards 7134
__pmLogFetchInterp: log reads: forward 7 backwards 7134
__pmLogFetchInterp: log reads: forward 16 backwards 7141
__pmLogFetchInterp: log reads: forward 18931 backwards 2718
__pmLogFetchInterp: log reads: forward 18916 backwards 2718
__pmLogFetchInterp: log reads: forward 18901 backwards 2718
__pmLogFetchInterp: log reads: forward 18886 backwards 2718
__pmLogFetchInterp: log reads: forward 18875 backwards 2717
Whoa dude!