Date: Mon, 27 Apr 1998 10:43:00 +1000 (EST) From: Andrew Reilly <reilly@zeta.org.au> To: gurney_j@resnet.uoregon.edu Cc: gurney_j@efn.org, robert@cyrus.watson.org, freebsd-hackers@FreeBSD.ORG Subject: Re: Context switch time Message-ID: <199804270043.KAA14812@gurney.reilly.home> In-Reply-To: <19980425034313.55993@hydrogen.nike.efn.org>
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On 25 Apr, John-Mark Gurney wrote: > as far as context switching goes... that is a difficult subject... Stanford > did a paper comparing a few os's on context switch time and found that > Linux was able to get about 10ms switch time, but this assumed that you > had only a couple active processes... as soon as you went above 10 active > processes the context switch time grew to be >100ms, while FreeBSD pretty > much maintained a steady 100ms switch time for even 1k processes, while > linux grew to >700ms... (these numbers are from the top of my head) One would hope that they're us times, rather than ms? -- Andrew "The steady state of disks is full." -- Ken Thompson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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