[HN Gopher] Scratching the surface: perf stat and Hyper-Threading
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       Scratching the surface: perf stat and Hyper-Threading
        
       Author : zdw
       Score  : 12 points
       Date   : 2021-08-20 14:00 UTC (8 hours ago)
        
 (HTM) web link (www.uninformativ.de)
 (TXT) w3m dump (www.uninformativ.de)
        
       | bostonsre wrote:
       | You could look at cpu cache statistics with and without it
       | enabled. Memory access can definitely be a bottleneck. But I
       | guess it wouldn't make too much sense in this example (maybe?).
       | But if it is stalled on memory access, maybe disabling hyper
       | threading gives you more cpu registers and/or cache space.
       | 
       | Think Brendan Gregg's blog has some pertinent info about this
       | topic.
        
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       (page generated 2021-08-20 23:00 UTC)