Re: [CFR] reflect resolv.conf update to running application

From: Alexander Leidinger (Alexander_at_Leidinger.net)
Date: 08/21/05

  • Next message: Randy Bush: "Re: [CFR] reflect resolv.conf update to running application" 
    Date: Sun, 21 Aug 2005 12:54:12 +0200
To: Hajimu UMEMOTO <ume@freebsd.org>

    On Sun, 21 Aug 2005 19:27:07 +0900
    Hajimu UMEMOTO <ume@freebsd.org> wrote:

    > Hi,
    >
    > >>>>> On Sun, 21 Aug 2005 11:54:54 +0200
    > >>>>> Alexander Leidinger <Alexander@Leidinger.net> said:
    >
    > Alexander> Can kqueue be used instead of polling?
    >
    > It may be able to use kqueue. However, I'm not sure how kevent() is
    > cheap than stat(). It requires holding a file descriptor for

    From a high level perspective (I don't know the code), kevent() only
    has to lookup an event in a queue (if the file hasn't changed, which is
    the typical case), while stat() has to go through the VFS subsystem
    until it reaches the cache (or the disk).

    Bye,
    Alexander. 

    -- 
http://www.Leidinger.net                       Alexander @ Leidinger.net
  GPG fingerprint = C518 BC70 E67F 143F BE91  3365 79E2 9C60 B006 3FE7
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  • Next message: Randy Bush: "Re: [CFR] reflect resolv.conf update to running application"

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