[HN Gopher] OpenBSD: Hibernate Time Reduced
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       OpenBSD: Hibernate Time Reduced
        
       Author : rodrigo975
       Score  : 19 points
       Date   : 2021-09-01 06:09 UTC (3 hours ago)
        
 (HTM) web link (www.undeadly.org)
 (TXT) w3m dump (www.undeadly.org)
        
       | kiwijamo wrote:
       | Out of interest what does similar numbers look like on Windows,
       | Linux, etc?
        
       | ggm wrote:
       | Not identical but related: do compilers tune with the OS to get
       | code and data into L1 cache? I believe so, I want to believe you
       | can compile to avoid mem fetch, let alone disc. E.g. if I know my
       | AES needs a 20k table, does the compiler know how to make this
       | apparent to the CPU farm so its never out of L1?
       | 
       | I continue to believe a 2cpu 1mb L1 cache is faster than 2 cpu,
       | 2HT, 512k L1 cache. 4x fake CPUs and less L1 doesn't beat true
       | cpu and lots of cache on die. But, I might be wrong!
        
         | adrianN wrote:
         | Profile guided optimization can help compilers put data in the
         | right place, but in general compilers are not very good at
         | that.
        
       | kristjank wrote:
       | Great to hear that; Getting closer to running it as a bare-metal
       | desktop OS by the day.
        
         | nix23 wrote:
         | Look being a great fan of BSD (especially FreeBSD), i have one
         | big problem with all of them on my laptop....and it is
         | Wireless! A max speed of ~650kb/s is just not a usable one
         | today.
         | 
         | Well and on the workstation that you cannot change fanspeed on
         | a AMD-GPU, those are my 2 big-points.
        
           | messe wrote:
           | > A max speed of ~650kb/s is just not a usable one today
           | 
           | What card model, how do you have it configured, and how far
           | from the router are you? 650kb/s is not an inherent limit on
           | any BSD, and much higher speeds are easily possible if you
           | have supported hardware.
        
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       (page generated 2021-09-01 10:00 UTC)