nanog mailing list archives
Re: Whats so difficult about ISSU
From: Saku Ytti <saku () ytti fi>
Date: Sat, 10 Nov 2012 18:48:26 +0200
On (2012-11-11 00:14 +0900), Randy Bush wrote:
as to whether ios/xe is rtc, you may want to see my preso at the last nanog.
NANOG56? I only found RPKI Propagation by you. Direct URL would be appreciated. But I really have 0 doubt that IOSd is run-to-completion, exactly like RPD is. But IOSd indeed seems to have 3 OS threads, while RPD is single threaded. As I understand RPD does have green threads though, but that is not helping at all making things simple for JNPR, more if anything, it's making things more complex. If native process separation and even native thread separation cannot be made scale (I'm highly suspicious why it couldn't). Then I wonder why vendors don't use some existing VM, instead of inventing their own. Many existing are free and support green threads and native thread and many-to-many mapping between, so you could get benefit of minimal overhead of green thread and you get benefit of OS level threading (SMP, scheduling) to compartmentalize processes. -- ++ytti
Current thread:
- Re: Whats so difficult about ISSU, (continued)
- Re: Whats so difficult about ISSU Pete Lumbis (Nov 09)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 09)
- Re: Whats so difficult about ISSU Pete Lumbis (Nov 09)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 09)
- Re: Whats so difficult about ISSU Pete Lumbis (Nov 09)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 09)
- Re: Whats so difficult about ISSU Pete Lumbis (Nov 09)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 10)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 10)
- Re: Whats so difficult about ISSU Randy Bush (Nov 10)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 10)
- Re: Whats so difficult about ISSU Nick Hilliard (Nov 10)
- Re: Whats so difficult about ISSU sthaug (Nov 10)
- Re: Whats so difficult about ISSU Randy Bush (Nov 10)
- Re: Whats so difficult about ISSU Saku Ytti (Nov 11)
- Re: Whats so difficult about ISSU Randy Bush (Nov 11)
- Re: Whats so difficult about ISSU Phil Regnauld (Nov 11)
- Re: Whats so difficult about ISSU Joe Greco (Nov 11)
- Re: Whats so difficult about ISSU Felipe Zanchet Grazziotin (Nov 11)
- Re: Whats so difficult about ISSU Gary Buhrmaster (Nov 11)
- Re: Whats so difficult about ISSU Pete Lumbis (Nov 09)
- Re: Whats so difficult about ISSU Gary Buhrmaster (Nov 11)