# [OmniOS-discuss] MEDIA: Time, but Faster

John D Groenveld jdg117 at elvis.arl.psu.edu
Tue Apr 18 12:09:47 UTC 2017

- Previous message: [OmniOS-discuss] Issue with java and poll
- Next message: [OmniOS-discuss] MEDIA: Time, but Faster
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

    Digging thru the snail mail; for those with ACM digital library access,
    see Theo Schlossnagle on gethrtime(3C) in Communications:
    <URL:https://cacm.acm.org/magazines/2017/3/213822-time-but-faster/fulltext>
    | The first observation is that Linux optimizes both of these calls
    | significantly more than OmniOS does. This has actually been
    | addressed as part of the LX brand work in SmartOS by Joyent and will
    | soon be upstreamed into Illumos for general consumption by OmniOS.
    | Alas, that isn't the worst thing: objectively determining what time
    | it is, is simply too slow for microsecond-level timing, even at the
    | lower 119.8ns/op (nanoseconds per operation) number above. Note that
    | gettimeofday () supports only microsecond-level accuracy and thus is
    | not suitable for timing faster operations.

    John
    groenveld at acm.org

- Previous message: [OmniOS-discuss] Issue with java and poll
- Next message: [OmniOS-discuss] MEDIA: Time, but Faster
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

More information about the OmniOS-discuss mailing list