Monday, 2020-06-08

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knielsen    set subblocks [get_designs -quiet $CHIPSTRUCTURE(HIERARCHY,$PD_block,HIER)]05:15
knielsenoops, sorry :-/05:15
az0re Does anyone have experience with PerformanceTimer ?  I'm trying to use it in a very simple way but it's giving me erroneous timing info.  3m40s of wall clock time is reported as 0.05s05:16
az0re(asking again)05:16
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whitequarkwhich OS?05:20
whitequarkhm05:20
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whitequarklooking at log.h, PerformanceTimer only measures self time05:21
whitequarkso if you're running an external process that is slow, it won't be counted05:21
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az0reIt subtracts time spent in a child process?07:01
az0reI must have missed that07:02
az0reThanks07:02
az0reAny idea how to get it not to do that?07:02
whitequarkit doesn't subtract it07:12
whitequarkit doesn't measure it07:12
whitequarkit uses the performance counters for this process only07:12
whitequarktry replacing RUSAGE_SELF with RUSAGE_CHILDREN07:12
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az0rewhitequark: Thanks a lot :)19:32
whitequarknp19:32
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rlee287What does the $slice cell do? From the Verilog backend I would guess that it selects some bits from a bitvector, but the manual has a "FIXME" stating that it needs to be documented. Is there some other place where I can look for more information?22:50
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Loftywhitequark probably knows, but I believe you are correct; it's a partial selection of a net23:15
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